Handbook of High Resolution Infrared Laboratory Spectra of Atmospheric Interest (1981) [1 ed.] 9781138105904, 9780203712566, 9781351363051, 9781351363044, 9781351363068, 9781138559554, 9780367848941

Table of contents :

1.Environmental sciences; 2. Methane 3. Measuring methods 4. Nitrous oxide 5. Absorption spectra 6.Air pollution 7. Atmospheric chemistry; 8. Fourier transformation 9. Infrared spectra 10. Alkanes 11. Chalcogenides 12. Chemistry 13. Hydrocarbons 14. Integral transformations 15. Nitrogen compounds 16. Nitrogen oxides 17. Organic compounds 18. Oxides 19. Oxygen compounds 20. Pollution 21. Spectra 22. Transformations

Citation preview

CRC Handbook of High Resolution Infrared Laboratory Spectra of Atmospheric Interest Editors

David G. Murcray Department of Physics University of Denver Denver, Colorado

Aaron Goldman Department of Physics University of Denver Denver, Colorado

First published 1981 by CRC Press Taylor & Francis Group 6000 Broken Sound Parkway NW, Suite 300 Boca Raton, FL 33487-2742 Reissued 2018 by CRC Press © 1981 by Taylor & Francis CRC Press is an imprint o f Taylor & Francis Group, an Informa business No claim to original U.S. Government works This book contains information obtained from authentic and highly regarded sources. Reasonable efforts have been made to publish reliable data and information, but the author and publisher cannot assume responsibility for the validity o f all materials or the consequences o f their use. The authors and publishers have attempted to trace the copyright holders o f all material reproduced in this publication and apologize to copyright holders if permission to publish in this form has not been obtained. If any copyright material has not been acknowledged please write and let us know so we may rectify in any future reprint. Except as permitted under U.S. Copyright Law, no part o f this book may be reprinted, reproduced, transmitted, or utilized in any form by any electronic, mechanical, or other means, now known or hereafter invented, including photocopying, microfilming, and recording, or in any information storage or retrieval system, without written permission from the publishers. For permission to photocopy or use material electronically from this work, please access www.copyright.com (http://www.copyright.com/) or contact the Copyright Clearance Center, Inc. (CCC), 222 Rosewood Drive, Danvers, MA 01923, 978-750-8400. CCC is a not-for-profit organiza-tion that provides licenses and registration for a variety o f users. For organizations that have been granted a photocopy license by the CCC, a separate system o f payment has been arranged. Trademark Notice: Product or corporate names may be trademarks or registered trademarks, and are used only for identification and explanation without intent to infringe. A Library o f Congress record exists under LC control number: 80023134 Publisher’s Note The publisher has gone to great lengths to ensure the quality o f this reprint but points out that some imperfections in the original copies may be apparent. Disclaimer The publisher has made every effort to trace copyright holders and welcomes correspondence from those they have been unable to contact. ISBN 13: 978-1-138-10590-4 (hbk) ISBN 13: 978-0-203-71256-6 (ebk) Visit the Taylor & Francis Web site at http://www.taylorandfrancis.com and the CRC Press Web site at http://www.crcpress.com

PREFACE Part of the atmospheric spectroscopy research at the University of Denver consists of detailed identification of the atmospheric absorption features present in high reso­ lution infrared solar spectra obtained from various altitudes. This study revealed a lack of laboratory data for many of the compounds of interest with sufficiently high resolution to be used for identification. Therefore, a laboratory study was undertaken to obtain high resolution spectra of many of the species of interest. The spectra pre­ sented in this Handbook are the result of this study. A number of individuals participated in the preparation of this handbook, most notably F. S. Bonomo, C. M. Bradford, G. R. Cook, F. H. Murcray, F. J. Murcray, and J. W. VanAllen. The research was supported by the Chemical Manufacturers As­ sociation and the National Science Foundation.

THE EDITORS Professor David G. Murcray has been engaged in atmospheric research with partic­ ular emphasis on atmospheric spectroscopy for over 20 years. He received his B.S. from the University of Denver, his M.S. from Oklahoma State University, and his Ph.D. from the University of Denver. Professor Murcray began his career as a teaching fellow at Harvard University from 1948 to 1949 and at Oklahoma State University from 1949 to 1950. He was an assistant instructor at Kansas University from 1950 to 1951 and a research mathematician for Phillips Petroleum Company the following year. Since 1952 he has been at the Univer­ sity of Denver, where he is currently Professor of Physics. His atmospheric research has included measurements of water vapor and other mi­ nor constituents and trace constituents in the region from 13 km to 40 km, using spec­ troscopic techniques. This research led to the initial detection of H N 0 3 and N 0 2 in the lower stratosphere. Included in his research interests are atmospheric spectroscopy (particularly in the infrared), infrared instrumentation, Fourier transform spectros­ copy and atmospheric chemistry. A member of Phi Beta Kappa, Sigma Pi Sigma, Sigma Xi, and a Fellow of the Optical Society, Professor Murcray has published numerous papers and journal arti­ cles concerned with atmospheric spectroscopy and atmospheric composition. Aaron Goldman, Research Professor of Physics at the University of Denver, has done extensive research in quantitative molecular and atomic spectroscopy since receiv­ ing his M.Sc. in 1962 from the Hebrew University, Jerusalem, Israel. He received his D.Sc. in 1965 from the Technion-Israel Institute of Technology, Haifa, Israel, where he was involved in high temperature spectral emissivity infrared and ultraviolet labo­ ratory studies of atmospheric gases. From 1966 to present, his research has been con­ centrated on quantitative analysis of infrared and ultraviolet absorption of solar radia­ tion by the earth’s atmospheric gases, atomic and molecular solar lines, and infrared emission by the earth’s atmosphere, from high resolution spectra obtained with ground-based and air-borne spectrometers. As part of this research, Dr. Goldman demonstrated the detection and quantification of several new molecular species in the lower stratosphere. A member of Sigma Xi and the American Geophysical Union, Dr. Goldman has authored or co-authored over 100 papers and journal articles related to atmospheric and solar spectroscopy.

ADVISORY BOARD Henry L. Buijs Bomen Incorporated Ville De Vanier, Quebec Phillip L. Hanst Visiting Staff Scientist Statewide Air Pollution Research Center University of California Riverside, California William G. Mankin Staff Scientist, Atmospheric Quality Division National Center for Atmospheric Research Boulder, Colorado John H. Shaw Professor, Department of Physics Ohio State University Columbus, Ohio

TABLE OF CONTENTS Introduction..........................................................................................................................1 Description of Atlas..............................................................................................................2 References..............................................................................................................................3 List of Molecular Species....................................................................................................5 Cross Index............................................................................................................................7 Spectra..................................................................................................................................17

1

INTRODUCTION Infrared spectroscopy has been used for many years as a means of identifying and quantifying the constituents present in gaseous samples. As a result, a large number of infrared spectra have been published either in the form of handbooks or index cards (many of them by the chemical industry). For most industrial applications, resolution is not crucial, and the majority of spectra presented in previous publications have moderate to low resolution (i.e., not better than 1 cm-1). During the last decade, infrared spectroscopy also became a powerful tool in atmos­ pheric studies. Locating a source at some distance from the spectrometer with the intervening atmosphere as an absorber provides spectra which contain a wealth of information on atmospheric composition. This technique is used extensively to obtain information concerning gases present in natural and polluted atmospheres. Recent studies in atmospheric chemistry, particularly those associated with the ozone layer, have shown that very small amounts of certain compounds can act as catalysts and have a significant impact on atmospheric photochemistry and composition. As a result, there is considerable current interest in obtaining data concerning the concentration of a large number of compounds which are present in the atmosphere at very low levels. This leads to the need for an increase in sensitivity of measurement techniques, including infrared spectroscopy. Increased spectral resolution improves the sensitivity of infrared spectroscopic measurements for almost all species. One of the major difficulties encountered in attempting to use infrared spectroscopy for atmospheric measurements is the interference from absorption features due to other atmospheric constituents. The common minor constituents (H 20 , C 0 2, N 20 , CH4, O 3 , and CO) all have strong infrared absorption features and these tend to pro­ duce absorption lines that interfere with those due to the molecular species of interest. Detection and measurement of gases in atmospheric spectra must be accomplished against this interference, and increased spectral resolution becomes very important in achieving detection under such conditions. A recent publication by Graedel 1 lists 1600 gases which are known or thought to be present in the atmosphere. Assembling high resolution spectra of all these gases is obviously beyond the scope of this Handbook. Spectra in this Handbook represent a relatively small number of these gases, the majority of which were chosen because of current interest in the stratospheric ozone layer. Most of the spectra presented are in the 5 to 15 \á region, where most of our recent atmospheric spectral studies were carried out. Many of the molecules of interest also have strong bands at shorter and longer wavelengths which are not yet included here, but which will hopefully be included in future editions of this Handbook. The present spectra are at least one order of magnitude higher resolution than other comparably extensive compilations of spectra. The development of modern laser spec­ trometers allows still higher resolution over limited spectral ranges. The resolution achieved in the spectra presented here is close to the limit for which it is practical to present spectra in handbook form. While workers often exchange data on magnetic tape, it has been our experience that a great deal of preliminary work can be accom­ plished by using a hard copy of the appropriate spectra. It is on the basis of our own use of hard copy spectra that we felt it worthwhile to publish this Handbook.

2

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

DESCRIPTION OF THE ATLAS The spectra presented in this Handbook were obtained for either of two objectives. The first major objective was possible detection and measurement of new constituents in the earth’s atmosphere. In most cases, the expected atmospheric absorptions from such a constituent will be quite weak. Therefore, the amount of gas in the absorption cell was adjusted so that the peak absorption in the spectrum was less than 50%. How­ ever, in some cases portions of the band may be strong enough that this criterion was exceeded. The second objective was to obtain data for some of the common minor species (such as CH4, N 20 , etc.) with large gas amounts in the absorption cell. Such data are needed for identifying absorption features which occur in atmospheric spectra taken over long atmospheric paths, but which are not adequately documented in previous studies. In some cases we have included spectra taken with more than one gas in the optical path for spectral regions with overlapping absorption features. All of the spectra were taken using Fourier Transform Spectrometer systems. These systems are gradually replacing grating spectrometers for wide spectral regions in most laboratories since they have a number of advantages over grating spectrometers. One of the major advantages is the precise frequency data (linearity as well as absolute frequency calibration) that can be obtained. In many cases presented here, the spectra were calibrated against suitable reference absorption lines to within 0 . 1 of a resolution element. In all cases the frequencies are accurate to within a resolution element. Some of the spectra were ratioed by a corresponding spectrum of an empty cell to remove envelope trends. Some of these ratioed spectra can be considered as approximate trans­ mittance. The spectrum for each molecule is plotted on two scales. The first is a condensed scale, typically covering a span of 75 to 300 cm -1 in one frame. The second scale is an expanded view covering 20 or 10 cm " 1 per frame. This was necessary to permit presen­ tation of an entire band, while at the same time preserving details inherent in the high resolution used. If no high resolution structure is apparent, the expanded plots are not included. Each plot contains a title with the name of the molecule, its chemical formula, an alternate name (if appropriate), the gas pressure, cell length and estimated resolution of the spectrum. With the two different instruments used, resolutions of 0.02 cm " 1 and 0.06 cm ' 1 are present. All of the spectra were obtained under room conditions. In addition, each condensed scale frame contains a few additional explanatory notes. These notes typically indicate the presence of residual H 20 or C 0 2, filter structure, or channel spectra. The plots are ordered in the List of Molecular Species by formula according to an alphabetical scheme (Herzberg , 2 Rao and Mathews3). A complete cross-reference index, alphabetized by molecule name, is also included. This contains references to alternate names and formula presentations that may be more familiar to the reader.

ACKNOWLEDGMENTS Acknowledgment is made to the National Center for Atmospheric Research, which is sponsored by the National Science Foundation, for computer time used in this re­ search. The computer programs used for plotting the spectra were written by Darwin Rolens. The figures were carefully plotted and prepared by Barbra Cox.

3

REFERENCES 1. Graedel, T. E ., Chemical Compounds in the Atmosphere, Academic Press, New York, 1978. 2. Herzberg, G ., Molecular Spectra and Molecular Structure II. Infrared and Raman Spectra of Polya­ tomic Molecules, D. Van Nostrand Company, Princeton, New Jersey, 1962, 568. 3. Rao, K. N . and Mathews, C. W ., Molecular Spectroscopy: Modern Research, Academic Press, New York, 1972,412.

5

LIST OF MOLECULAR SPECIES Molecule

Plot

CCIF ........................................................ 10................................................................. C C Î F ...................................................... 20A, B, C ................................................... CC13F ........................................................ 30A, B, C ................................................... C C I F ...................................................... 40A, B......................................................... C C I F ...................................................... 50A, B ......................................................... C C IF O ...................................................... 60................................................................. CC IjO ........................................................ 70................................................................. CF ............................................................ 80A, B ......................................................... CF + CH + N .................................. 90 ................................................................. CF O .......................................................... 100A, B....................................................... CH .......................................................... 110A, B, C, D, E ....................................... CH + N20 .............................................. 120............................................................... C H .......................................................... 130............................................................... C H .......................................................... 140A, B ....................................................... CH C f ...................................................... 150A, B....................................................... CH ,Cl ...................................................... 160A, B ....................................................... C HC1 ...................................................... 170............................................................... C H C I .................................................... 180............................................................... C H C .................................................... 190A, B....................................................... C H C JF j.................................................... 200............................................................... C H C !2F .................................................... 210A, B....................................................... CH 0 ........................................................ 220............................................................... C IO N O j.................................................... 230A, B, C ................................................. CIONOj + HN O ,.................................... 240............................................................... COS............................................................ 250............................................................... CS ............................................................ 260............................................................... H N O ,........................................................ 270A, B, C, D, E ....................................... H 0 .......................................................... 280A, B....................................................... NH .................................. ..........................290A, B ....................................................... NO.............................................................. 300............................................................... N 0 ............................................................ 310............................................................... N Os .......................................................... 320............................................................... 3

2

1

2

2

4

2

3

3

4 4

4

2

4 4

2

2

2

6

2

2

2

3

2

3

3

2

4

! 2

2

2

2

2

2

3

2

2

20

Page 17 23 35 43 51 55 58 61 67 75 82 132 138 143 155 161 170 175 178 185 188 197 201 211 214 218 223 246 258 269 274 282

7

CROSS INDEX Molecule

Plot

Name Alternate name Index reference Alternate formula Plots

Acetylene Ethyne C 2H 2 c 2h 2 680-840cm_1 8.0 Torr 10cm R = 0.06cm"1

(130)

Name Alternate name Index reference Alternate formula Plots

Ammonia Ammonia nh3 nh3 750-950cm_1 0.5 Torr 10cm R = 0.06cm"1 1070-210cm-1 5.0 Torr 5cm R = 0.06cm-1

(290A) (290B)

Name Alternate name Index reference Alternate formula Plots

Carbon disulfide Carbon disulfide CS2 CS2 1460-1600cm"10.5 Torr 10cm R = 0.06cm"1

(260)

Name Alternate name Index reference Alternate formula Plots

Carbon oxysulfide See Carbonyl sulfide

Name Alternate name Index reference Alternate formula Plots

Carbonyldichloride, Carbonyl chloride Phosgene, chloroformylchloride CO CI 2 800-880cm"10.8 Torr 10cm R = 0.06cm"1

(70)

Name Alternate name Index reference Alternate formula Plots

Carbonyl chlorofluoride Chloroformylfluoride CCI FO COCIF 1070-1150cm"10.34 Torr 10cm R = 0.06cm"1

(60)

Name Alternate name Index reference Alternate formula Plots

Carbonyl difluoride, Carbonyl fluoride Fluoroformylfluoride c f 2o c o f2 740-820cm"! 3.1 Torr 10cm R = 0.06cm"1 1180-1280cm"13.1 Torr 10cm R = 0.06cm"1

(100A) (100B)

cci2o

8

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

CROSS INDEX (continued) Molecule

Plot

Name Alternate name Index reference Alternate formula Plots

Carbonyl sulfide Carbon oxysulfide COS OCS 2000-2120cm" 1 2.0 Torr 10cm R = 0.06cm'1

(250)

Name Alternate name Index reference Alternate formula Plots

Chlorinenitrate Chlorine nitrate C i0 N 0 2 c io n o 2 770-850cm_1 14.0 Torr 5cm R = 0.06cm'1 770-850cm"1 1.9 Torr 10cm R = 0.06cm'1 1255-1355cm~1 14.0 Torr 5cm R = 0.06cm"1

(230B) (230A) (230C)

Name Alternate name Index reference Alternate formula Plots

Chlorine nitrate + nitric acid Chlorine nitrate + nitric acid CIONO 3 , HNO 3 CIONO 3 , HNO 3 1260-1340cm'1 1.2 Torr 5cm R == 0.06cm"1

(240)

Name Alternate name Index reference Alternate formula Plots

Chlorodifluoromethane F-22 CH C!F 2 CHF 2C! 770-850cm"13.0 Torr 5cm R = 0.06cm"1

(2 0 0 )

Name Alternate name Index reference Alternate formula Plots

Chloroformylchloride See Carbonyl dichloride

Name Alternate name Index reference Alternate formula Plots

Chloroformylfluoride See Chlorofluoride

Name Alternate name Index reference Alternate formula Plots

Chloromethane See Methyl chloride

9

CROSS INDEX (continued) Molecule

Plot

Name Alternate name Index reference Alternate formula Plots

Chlorotrifluoromethane F-13 C C IF 3 CF 3CI 1070-1250cm"10.4 Torr 10cm R = 0.06cm"1

(1 0 )

Name Alternate name Index reference Alternate formula Plots

Dichlorodifluoromethane F-12 C C I 2F 2 CF 2C ! 2 840-940cm_1 4.1 Torr 5cm R = 0.06cm"1 1070-1250cm"10.4 Torr 10cm R = 0.06cm"1 1080-1180cm"14.1 Torr 5cm R = 0.06cm"1

(20A) (20B) (20C)

Name Alternate name Index reference Alternate formula Plots

1,2-Dichloroethane Ethylene chloride c 2 h 4c i 2 c 2 h 4c i 2 700-760cm"1 3.5 Torr 10cm R = 0.06cm"1 1200-1300cm- 1 3.5 Torr 10cm R = 0.06cm"1

(190A) (190B)

Name Alternate name Index reference Alternate formula Plots

Dichlorofluoromethane F-21 C H C I2F c h fc i2 700-860cm"15.0 Torr 5cm R = 0.06cm"1 1060-1300cm_1 5.0 Torr 5cm R = 0.06cm'1

(210A) (210B)

Name Alternate name Index reference Alternate formula Plots

Dichloromethane Methylene chloride CH 2C ! 2 CH 2C ! 2 720-800cm'1 5.9 Torr 5cm R = 0.06cm"1 1240-1300cm'15.9 Torr 5cm R = 0.06cm"1

(150A) (150B)

Name Alternate name Index reference Alternate formula Plots

1,2-Dichlorotetrafluoroethane F-114 C 2C ! 2F 4 c 2f 4 c i 2 SlO ^O cm ' 1 0.9 Torr 10cm R = 0.06cm'1 1080-1300cm"10.9 Torr 10cm R = 0.06cm"1

(40A) (40B)

Name Alternate name Index reference Alternate formula Plots

Dinitrogen pentoxide Nitrogen pentoxide n 2o 5 n 2o 5 1220- 1270cm'1 5.0 Torr 5cm R = 0.06cm"1

(320)

10

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

CROSS INDEX (continued) Molecule Name Alternate name Index reference Alternate formula Plots

Ethane Ethane c 2h 6 c 2h 6 780-880cm"13.9 Torr 10cm R = 0.06cm-1 2840-3100cm"13.9 Torr 10cm R = 0.06cm 1

Name Alternate name Index reference Alternate formula Plots

Ethylene chloride See 1,2-Dichloroethane

Name Alternate name Index reference Alternate formula Plots

Ethylene trichloride See Trichloroethylene

Name Alternate name Index reference Alternate formula Plots

Ethyne See Acetylene

Name Alternate name Index reference Alternate formula Plots

Fluoroformylfluoride See Carbonyl difluoride

Name Alternate name Index reference Alternate formula Plots

Formic acid Methanoic acid c h 2o 2 HCOOH 1070-1170cm'1 1.6 Torr 10cm R = 0.06cm’1

Name Alternate name Index reference Alternate formula Plots

F -ll See Trichlorofluoromethane

Plot

(140A) (140B)

(2 2 0 )

11

CROSS INDEX (continued) Molecule Name Alternate name Index reference Alternate formula Plots

F-113 See 1,1,2-Trichlorotrifluoroethane

Name Alternate name Index reference Alternate formula Plots

F-114 See 1,2-Dichlorotetrafluoroethane

Name Alternate name Index reference Alternate formula Plots

F-12 See Dichlorodifluoromethane

Name Alternate name Index reference Alternate formula Plots

F-13 See Chlorotrifluoromethane

Name Alternate name Index reference Alternate formula Plots

F-14 See Tetrafluoromethane

Name Alternate name Index reference Alternate formula Plots

F-21 See Dichlorofluoromethane

Name Alternate name Index reference Alternate formula Plots

F-22 See Chlorodifluoromethane

Name Alternate name Index reference Alternate formula Plots

Hydrogen nitrate See Nitric acid

Plot

12

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

CROSS INDEX (continued) Plot

Molecule Name Alternate name Index reference Alternate formula Plots

Hydrogen peroxide Hydrogen peroxide h 2o 2 h 2o 2 m o - m o c m ' 1 4.0 Torr 10cm R = 0.06cm'1 1200-1340cm'12.5 Torr 45cm R = 0.02cm ' 1

(280A) (280B)

Name Alternate name Index reference Alternate formula Plots

Methane Methane ch4 ch4 1200-1400cm'1 10.0 Torr 45cm R 1200-1400cm"1 80.0 Torr 45cm R 1400-1600cm"180.0 Torr 45cm R 1600-1800cm'180.0 Torr 45cm R

0.02cm ' 1 0.02cm ' 1 0.02cm " 1 0.02cm ' 1

(110B) (110C) (110D) (110E)

Name Alternate name Index reference Alternate formula Plots

Methane Methane ch4 ch4 mO-M lOcm ' 1 20.0 Torr 10cm R = 0.06cm'1

(110A)

Name Alternate name Index reference Alternate formula Plots

Methane + dinitrogen oxide Methane -I- nitrous oxide c h 4, n 2o c h 4, n 2o 1120-1300cm"176.0 Torr 5cm R = 0.06cm'1

(1 2 0 )

Name Alternate name Index reference Alternate formula Plots

Methanoic acid See Formic acid

Name Alternate name Index reference Alternate formula Plots

Methyl chloride Chloromethane CHjCI CH 3CI 670-770cm'172.0 Torr 5cm R = 0.06cm'1 950-1110cm'172.0 Torr 5cm R = 0.06cm'1

Name Alternate name Index reference Alternate formula Plots

Methyl chloroform See 1,1,1 -Trichloroethane

= = = =

(160A) (160B)

13

CROSS INDEX (continued) Plot

Molecule Name Alternate name Index reference Alternate formula Plots

Methylene chloride See Dichloromethane

Name Alternate name Index reference Alternate formula Plots

Nitric acid Hydrogen nitrate HNO 3 HNO 3 \210-1370cm-10.42 Torr 45cm R = 1670-1750cm"10.42 Torr 45cm R =

0 .0 2 cm ' 1 0 .0 2 cm ' 1

(270D) (270E)

Name Alternate name Index reference Alternate formula Plots

Nitric acid Hydrogen nitrate HNO 3 HNO 3 760-920cm"1 1.57 Torr 10cm R = 0.06cm 1 840-940cm"12.2 Torr 5cm R = 0.06cm"1 1275-1355cm"12.1 Torr 10cm R = 0.06cm"1

(270A) (270B) (270C)

Name Alternate name Index reference Alternate formula Plots

Nitric oxide Mononitrogen monoxide NO NO 1800-1960cm"136.0 Torr 5cm R == 0.06cm"1

(300)

Name Alternate name Index reference Alternate formula Plots

Nitrogen dioxide Nitrogen dioxide no2 no2 1500-1700cm-! 2.0 Torr 45cm R == 0 .0 2 cm ' 1

(310)

Name Alternate name Index reference Alternate formula Plots

Nitrogen pentoxide See Dinitrogen pentoxide

Name Alternate name Index reference Alternate formula Plots

Phosgene See Carbonyl chloride

14

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

CROSS INDEX (continued) Molecule

Plot

Name Alternate name Index reference Alternate formula Plots

Tetraf luoromethane F-14 cf4 cf4 1200-1300cm"10.075 Torr 2cm R = 0.06cm"1 1250-1310cm"10.04 Torr 5cm R = 0.02cm"1

(80A) (80B)

Name Alternate name Index reference Alternate formula Plots

Tetrafluoromethane + methane + nitrous oxide F-14 + methane + nitrous oxide c f 4, c h 4, n 2o c f 4, c h 4, n 2o lOSO-OSOcm'10.04, 75 Torr 2.5cm R = 0.02cm"1

(90)

Name Alternate name Index reference Alternate formula Plots

1,1,1 -T richloroethane Methyl chloroform C2H3C I3 c 2h 3c i 3 700-760cm~1 1.1 Torr 10cm R = 0.06cm“1

(180)

Name Alternate name Index reference Alternate formula Plots

Trichloroethylene Ethylene trichloride C2HCl 3 C2HCl 3 740-900cm_1 2.8 Torr 10cm R = 0.06cm"1

(170)

Name Alternate name Index reference Alternate formula Plots

Trichlorof luoromethane F -ll CCl 3F CFCl 3 810-870cm"10.07 Torr 10cm R = 0.06cm'1 810-890cm"12.6 Torr 5cm R = 0.06cm"1 1060-1160cm'12.6 Torr 5cm R = 0.06cm"1

(30A) (30B) (30C)

Name Alternate name Index reference Alternate formula Plots

1 ,1,2-Trichlorotrifluoroethane F-113 C2C !3F3 C2F3C !3 760-940cm~12.9 Torr 10cm R = 0.06cm"1 1090-1250cm_1 2.9 Torr 10cm R = 0.06cm"1

(50A) (50B)

Spectra

CHLOROTRIFLUOROMETHRNE

CCLF3

F -1 3

(CM-1)

17

NFIVENUMBER

Handbook o f High Resolution In frared Laboratory Spectra o f Atmospheric Interest

(CM-1) WRVENUMBER

18

F -1 3 CCLF3 CHLOROTRIFLUOROMETHfiNE

CHLOROTRIFLUOROMETHRNE

CCLF3

F -1 3

CCM-1)

19

WRVENUMBER

20

F -1 3 CCLF3 CHLOROTRIFLUOROMETHflNE

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

(CM -1) WAVENUMBER

CHLOROTRIFLUOROMETHRNE

CCLF3

F -1 3

(CM -1)

21

WflVENUMBER

22

WflVENUMBER

(CM-1)

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

F -1 3 CCLF3 CHLOROTRIFLUOROMETHRNE

DICHLORODIFLUOROMETHRNE

CCL2F2

F -1 2

(CM-1)

23

WflVENUMBER

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

fC M -1 ) WAVENUMBER

24

F -1 2 CCL2F2 DICHLORODIFLUOROMETHflNE

DICHLORODIFLUOROMETHANE

CCL2F2

F -1 2

(CM-1)

25

WAVENUMBER

26

HRVENUMBER

(CM-1)

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

F - 12 CHCL2F2 DICHLORODIFLUOROMETHRNE

DICHLORODIFLUOROMETHRNE

CCL2F2

F - 12

(CM-1)

27

WRVENUMBER

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

(CM -1) WAVENUMBER

28

F -1 2 CCL2F2 DICHLORODIFlUOROMETHANE

DI CHLORODI FLUOROMFTHflNE

C

CL2F2

F -1 2

(CM-1)

29

WRVENUMBER

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

(CM -1) WRVENUMBER

30

F -1 2 CCL2F2 DICH10R0DIFLUOROMETHRNE

DICHLORODI FLUOROMETHflNE

CCL2F2

F - 12

(CM-1)

31

WRVENUMBER

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

(CM-1) WRVENUMBER

32

F -1 2 CCL2F2 DICHLORODIFLUOROMETHRNE

DlCHLORODIFLUOROMETHflNE

CCL2F2

F -1 2

(CM -1)

33

WRVENUMBER

34

WRVENUMBER

(CM-1)

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

F -1 2 CCL2F2 DICHLORODIFLUOROMETHRNE

TRICHLOROFLUOROMETHPNE

CCL3F

F - ll

(CM-1)

35

HflVENUMBER

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

(CM -1) WAVENUMBER

36

F - ll

CCL3F TRICHLOROFLUÛROMETHANE

TRICHLÛROFLUOROMETHRNE

CCL3F

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230

HN03 ACID NITRIC

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

(CM-1) WAVENUMBER

NITRIC

ACID

HNQ3

WflVENUMBER

(CM-1)

231

232

HN03 ACID NITRIC

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

(CM-1) WRVENUMBER

NITRIC

RCID

HN03

WRVENUMBER

(C M -1)

8

Ui

234

HN03 RCID NITRIC

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

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NITRIC

RCID

HN03

(CM-1)

235

WflVENUMBER

236

HN03 ACID NITRIC

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

(CM -1) WflVENUMBER

NITRIC

RCID

HN03

(CM -1)

237

WRVENUMBER

238

HN03 RCID NITRIC

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

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NITRIC

RCID

HN03

(CM -1)

239

WflVENUMBER

240

HN03 ACID NITRIC

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

(C M -1) WAVENUMBER

NITRIC

RCID

HN03

(CM-1)

241

WflVENUMBER

242

HN03 RCID NITRIC

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

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NITRIC

RCID

HN03

(CM-1)

243

WflVENUMBER

244

HN03 ACID NITRIC

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

(CM -1) WAVENUMBER

NITRIC

RCID

HN03

(C M -1)

245

WflVENUMBER

246

H202 PEROXIDE HYDROGEN

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

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HYDROGEN

PEROXIDE

H202

(CM -1)

247

WRVENUMBER

248

H202 PEROXIDE HYDROGEN

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

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HYDROGEN

PEROXIDE

H202

WAVENUMBER

(CM-1)

249

250

H202 PEROXIDE HYDROGEN

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

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HYDROGEN

PEROXIDE

H202

(CM-1)

251

WflVENUMBER

252

H202 PEROXIDE HYDROGEN

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

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HYDROGEN

PEROXIDE

H202

(CM -1)

253

WflVENUMBER

254

H202 PEROXIDE HYDROGEN

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

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HYDROGEN

PEROXIDE

H202

(CM-1)

255

URVENUMBER

256

H202 PEROXIDE HYDROGEN

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

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HYDROGEN

PEROXIDE

H202

(CM -1)

257

WRVENUMBER

258

NH3 RMMONIfl

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

(CM-1) WAVENUMBER

RMMONIfl NH3

(C M -1)

259

WflVENUMBER

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NH3 RMMONIfl

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

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AMMONIA

NH3

(C M -1)

261

WflVENUMBER

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NH3 AMMONIA

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

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RMMONIfl NH3

(CM -1)

263

WAVENUMBER

264

NH3 AMMONIR

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

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AMMONIR

NH3

(C M -1)

265

WflVENUMBER

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RMMONIfl NH3

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

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RMMONIfl NH3

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267

WRVENUMBER

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WRVENM U BER

(CM-1)

Handbook o f High Resolution In frared Laboratory Spectra o f Atmospheric Interest

nMMONIfi NH3

NITRIC

OXIDE

NO

(CM-1)

269

WRVENUMBER

270

NO OXIDE NITRIC

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

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NITRIC

OXIDE

NO

(CM -1)

271

WRVENUMBER

272

NO OXIDE NITRIC

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

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NITRIC

OXIDE

NO

(CM -1)

273

WflVENUMBER

274

DIOXIDE N02 NITROGEN

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

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NITROGEN

DIOXIDE

N02

(CM-1)

275

WflVENUMBER

276

ZON DIOXIDE NITROGEN

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

(C M -1) WflVENUMBER

NITROGEN

DIOXIDE

N02

(CM -1)

277

WAVENUMBER

278

N02 DIOXIDE NITROGEN

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

(CM-1) WAVENUMBER

NITROGEN

DIOXIDE

N02

(CM-1)

279

WflVENUMBER

280

N02 DIOXIDE NITROGEN

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

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NITROGEN

DIOXIDE

N02

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WAVENUMBER

Handbook o f High Resolution Infrared Laboratory Spectra o f Atmospheric Interest

(CM-1) WAVENUMBER

282

PENTOXIDE N205 DINITROGEN