Temperature Dependent Infrared Cross Sections for CFC-11, CFC-12, CFC-13, CFC-14, CFC-22, CFC-113, CFC-114, and CFC-115

Transcription

1 NCAR/TN-358+STR NCAR TECHNICAL NOTE February Temperature Dependent Infrared Cross Sections for CFC-11, CFC-1, CFC-13, CFC-1, CFC-, CFC-113, CFC-11, and CFC-115 S.T. Massie A. Goldman A.H. McDaniel C.A. Cantrell J. A. Davidson R.E. Shetter J.G. Calvert ATMOSPHERIC CHEMISTRY DIVISION NATIONAL CENTER FOR ATMOSPHERIC RESEARCH BOULDER, COLORADO

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3 iii CONTENTS L ist o f F igures... Preface Tet... 1 Reference T a b le... 5 F igures... 11

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5 v List of Figures Figure Page Cross section data for CFC-11 (CFC13) for cm Cross section data for CFC-1 1 (CFC13) for cm Cross section data for CFC-11 (CFC13) for cm Cross section data for CFC-1 1 (CFC13) for cm * * 15 Cross section data for CFC-11 (CFC13) for cm Cross section data for CFC-1 1 (CFC13) for cm Cross section data for CFC-1 (CC1F) for cm Cross section data for CFC-1 (CC1F) for cm Cross section data for CFC-1 (CC1F) for cm Cross section data for CFC-1 (CC1F) for cm Cross section data for CFC-1 (CC1F) for cm Cross section data for CFC-1 (CC1F) for cm Cross section data for CFC-13 (CC1F3) for cm-... Cross section data for CFC-13 (CC1F3) for cm Cross section data for CFC-13 (CC1F3) for cm Cross section data for CFC-13 (CClF3) for cm Cross section data for CFC-13 (CC1F3) for cm Cross section data for CFC-13 (CC1F3) for cm Cross section data for CFC-13 (CC1F3) for cm Cross section data for CFC-13 (CC1F3) for cm Cross section data for CFC-1 (CF) for cm Cross section data for CFC-1 (CF) for cm Cross section data for CFC-1 (CF) for cm

6 vi Cross section Cross section Cross section Cross section Cross section Cross section Cross section Cross section Cross section Cross section Cross section Cross section Cross section Cross section Cross section Cross section Cross section Cross section Cross section Cross section Cross section Cross section Cross section Cross section Cross section Cross section Cross section data for CFC-1 (CF) for cm data for CFC- (CHC1F) for 78-8 cm data for CFC- (CHC1F) for 78-8 cm data for CFC- (CHC1F) for cm data for CFC- (CHC1F) for cm data for CFC- (CHC1F) for cm-1... data for CFC- (CHC1F) for cm data for CFC- (CHC1F) for cm-1... data for CFC- (CHC1F) for cm data for CFC-113 (CC13F3) for cm data for CFC-113 (CC13F3) for cm data for CFC-1 13 (CC13F3) for 78-8 cm data for CFC-113 (CC13F3) for 78-8 cm data for CFC-1 13 (CC13F3) for cm data for CFC-1 13 (CC13F3) for cm data for CFC- 11 (CC1F) for cm data for CFC-11 (CC1F) for cm data for CFC-11 (CC1F) for cm data for CFC-1 1 (CC1F) for cm data for CFC-11 (CC1F) for cm data for CFC-11 (CC1F) for cm data for CFC-11 (CC1F) for cm data for CFC-1 1 (CC1F) for cm data for CFC-11 (CC1F) for cm data for CFC-11 (CC1F) for cm data for CFC-115 (CC1F5) for cm data for CFC-115 (CC1F5) for cm

7 vii Cross section Cross section Cross section Cross section Cross section Cross section data for CFC-115 (CC1F5) for cm data for CFC-115 (CC1F5) for cm data for CFC-115 (CC1F5) for cm data for CFC-115 (CC1F5) for cm data for CFC-115 (CC1F5) for cm data for CFC- 115 (CCLF5) for cm

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9 i PREFACE This Technical Note presents absorption cross sections at temperatures of 93, 73, 53, 33, 13 and 3 K for the chlorofluorocarbon species CFC-11 (CC13F), CFC-1 (CC1F), CFC-13 (CC1F3), CFC-1 (CF), CFC- (CHC1F), CFC-113 (CC13F13), CFC- 11 (CC1F), and CFC- 115 (CC1F5). The infrared cross sections are those reported by McDaniel et al. (199), and are displayed in graphical form to facilitate quick identification and quantification of CFC gases in high and medium resolution remote sensing studies. The work reported here is supported in part by the NASA Upper Atmosphere Research Satellite (UARS) program under contract S A. Goldman is an NCAR Affiliate Scientist and is from the University of Denver.

10 1 This Technical Note displays absorption cross sections at temperatures of 93, 73, 53, 33, 13 and 3 K for the chlorofluorocarbon species CFC-11 (CC13F), CFC-1 (CClF), CFC-13 (CClF3), CFC-1 (CF), CFC- (CHClF), CFC-113 (CC13F3), CFC-11 (CC1F), and CFC-115 (CClF5). These man-made gases play an active role in contributing to the increase of chlorine in the Earth's atmosphere, and to the increase of opacity in the infrared. Remote infrared sensing observations of these gases are frequently carried out at temperatures colder than room temperature, and thus accurate determination of CFC miing ratio profiles will be improved by using the cold temperature cross sections. The cross sections are those measured by McDaniel et al. (199). Measurements were taken at several pressures, from.5 to. torr. Least squares fitting of optical depth versus column density yielded determinations of slope (cross section) as a function of column density. The cross sections at each wave number, etrapolated to zero column density are the cross sections reported by McDaniel et al., and are displayed in this Tech Note. The species CFC-11, CFC-1, CFC-13, CFC-1, CFC-, CFC-11 and CFC- 115 were measured at an instrument resolution of.3 cm-1, and tabulated at every.15 cm-1. For CFC-113, the instrument resolution was 1. cm-1, and cross sections were tabulated at every.5 cm-1. These cross sections will become part of the 1991 HITRAN database, the ATMOS database and the GEISA database. Upon request, the data can be obtained, either on magnetic tape, or upon a convenient IBM PC diskette. In general the total systematic and random error of the data is on the order of 15 percent. As reported by McDaniel et al., comparison with the few other determinations of CFC band intensities reveals agreement to better than 15 percent, though for CFC-1, CFC-113, and CFC-11 the differencesrange from 3 percent to percent. To facilitate intercomparison to other laboratory data, Table 1 lists the integrals of cross section for a stated range of wave number. Note that these integral values are not total band intensities, since the full band wings are not included in the cross section listing. For eample, the wings of CFC-11 fall off more quickly at 3 K than at room temperature. In order to simplify the interpolation between temperatures, the 3 K band wings determined the range of wave number over which all CFC-11 data are reported. Table 1 also lists the maimum cross sections for each of the CFC bands. These cross sections are applicable to most tropospheric and lower stratospheric observations of CFC's. However, they do not reflect the fine structure observable for

11 some CFC's (such as CFC-1) at low pressures with higher spectral resolution. Also, pressure broadening is not addressed when using the present cross sections. The cross section data are displayed in two formats. For each species there are two figures which span the si temperatures, and cover the wave number range to be found on the 199 HITRAN compilation. Additional figures display the cross sections over a smaller range of wave number, i.e., a range of wave number which will likely be used in remote sensing identification of CFC species. For several of the species the temperature dependence is not large, e.g., at 89.5 cm-1 the maimum CFC- cross section varies only by percent for temperatures between 93 and 3 K. For many of the gases, the temperature dependence is very large, e.g., at cm-1 the CFC-1 peak varies by a factor of two. A straightforward application of the cross sections can be made by interpolating the cross sections with respect to temperature. Such application will increase the accuracy of CFC measurements by infrared spectroscopic methods.

12 3 Reference A. H. McDaniel, C. A. Cantrell, J. A. Davidson, R. E. Shetter and J. G. Calvert, "The Temperature Dependent, Infrared Absorption Cross Sections for the Chlorofluorocarbons: CFC- 11, CFC- 1, CFC- 13, CFC- 1, CFC-, CFC- 113, CFC-1 1, and CFC-1 15," Journal of Atmospheric Chemistry, February, 1991.

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14 5 Table 1. CFC Paramters Species Wave number Range cm- 1 Temperature K Integral (cm molecule- 1 cm- 1)a) Ma cross section (cm ) CC13F (CFC-11) (-17).75 (-18) CC13F (CFC- 11) (-17) 1. (-18) CC1F (CFC-1) (-17).76 (-18) a) Integral (cm molecule- 1 cm- 1 ) = fadv of cross section a over stated wave number range. 6.16(-17) reads Integrals can be converted to cm- atm- 1 by dividing by 1 RT/NA where R =.86 L atm mol-lk- 1, T is temperature in K, and NA = molecules mole- 1. Integrals can be converted to cm- amagat- 1 by dividing by /NA.

15 6 Species Wave number Range cm- Temperature K Integral (cm molecule- 1 cm- 1 ) Ma cross section (cm ) I CC1F (CFC-1) (-17) 1. (-17) CCIF3(CFC-13) (-18) 1.1 (-18) CCIF 3 (CFC-13) (-17) 6.5 (-18) (-17) CCIF3 (CFC-13) (-17) 9.5 (-18) (-17)

16 7 Species Wave number Range cm- 1 Temperature K Integral (cm molecule- 1 cm 1 ) Ma cross section (cm ) CF (CFC-1) (-16) 6.5 (-17) (-16) (-17) CHCIF (CFC-) (-17).57 (-18) CHC1F (CFC-) (-17) 3.5 (-18) CHCIF (CFC-) (-18) 1.17 (-18)

17 8 Species Wave number Range cm- 1 Temperature K Integral (cm molecule- 1 cm- 1 ) Ma cross section (cm ) - I I I II CC1 3 F3 (CFC-113) (-17) 1. (-18) CC13F3 (CFC-113) (-17) 1.3 (-18) CC1F (CFC-11) (- 17) 1.6 (-18) CC1 F (CFC-11) (-17) 1.1 (-18)

18 9 Species Wave number Range cm- 1 Temperature K Integral (cm molecule- 1 cm- 1 ) Ma cross section (cm ) I CC1F (CFC-11) (-17) 1.9 (-18) CC1F (CFC-11) (-17) 1.87 (-18) CC1F5 (CFC-115) (-17) 1.57 (-18) CC1F 5 (CFC-115) (-17) 1.36 (-18)

19 1 Species Wave number Range cm- 1 Temperature K Integral (cm molecule- 1 cm 1 ) Ma cross section (cm ) CC1F5 (CFC-115) (-17) 3.7 (-18)

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21 CFC-11 93K? WAVENUMBER 1/CM) 8 7 CFC-11 73K.5 d * 3 u v WAVENUMBER (1/CM) 8 7 L6 5 * CFC K a WAVENUMBER I1/CM) FIGURE 1. CROSS SECTIONS FOR CFC-11

22 CFC-11 33K LiJ.1 CFC-11 13K 'CV C..I I. WAVENUMBER (1/CM) 5 7 m 6 CFC- 11 3K N 3 u WAVENUMBER l 1/CM FIGURE. CROSS SECTIONS FOR CFC-11

23 8 7 6 I CFC-11 93K W.5 (V N3 -Jk-V% u WAVENUMBER (CM-1) CO6 bj.5.n *3 u CFC-11 73K I p. -P WAVENUMBER (CM-1) 8 7 CFC-11 53K w "!'5 3 r '-' 1 I WAVENUMBER ICM-1) FIGURE 3. CROSS SECTIONS FOR CFC-11

24 o?6 ij 8 7 ~~~ CFC-11 33K s F WAVENUMBER (CM-1)i 8 7 oo6 w.5 F- CFC-11 13K u WAVENUMBER (CM-1) 8, 7 oo 6 bj.5 clj I3 u CFC-11 3K VMJNA\ WAVENUMBER (CM-1I FIGURE. CROSS SECTIONS FOR CFC-11

25 18 < 16 i * 8 6 CFC-11 93K ga WAVENUMBER ( /CM) 18, 16 S 1 _ 1 1 CFC-11 73K WAVENUMBER (1/CM) 18 o, 16 i * Ia CFC K WAVENUMBER (1/CM) FIGURE 5. CROSS SECTIONS FOR CFC-11

26 na IC I CFC-11 33K (71 I cu I 5),z I 1 (1 : u WAVENUMBER (1/CM) 18 o, 16, c 8 u -- 6 CFC K I 111 WAVENUMBER ( 1/CM) r 18 o, 16 w 1, 1 1 # 8 6 CFC-11 3K WAVENUMBER ( 1/CM FIGURE 6. CROSS SECTIONS FOR CFC-11

27 CFC-1 93K 1 _ I cmj L 861 _dal.l LAOW 'J- 6 5.& j& 9_ 1 m W I ~~~~9 WAVENUMBER (1'/CM) 11 CFC-1 73K 6 LiJ n * WAVENUMBER (1/CM) X u 3 1 A 8 86 CFC-1 53K WAVENUMBER (1/CM) FIGURE 7. CROSS SECTIONS FOR CFC-1

28 mm CFC-1 33K (J-I WAVENUMBER (1/CM) CFC-1 1 3K 9 8, e WAVENUMBER I (1/CM) HA w , CFC-1 3K WAVENUMBER ( 1/CM) I FIGURE 8. CROSS SECTIONS FOR CFC-1

29 OD LJ 6 5 (N u_ CFC-1 93K I WAVENUMBER (CM-1) CO ('an u CFC-1 73K WAVENUMBER (CM-1 ) 1 9 D 8 w 7 lii 6 5 'ay t 918. CFC-1 53K I WAVENUMBER (CM-1 FIGURE 9. CROSS SECTIONS FOR CFC-1

30 a) ij (M CFC s 7 L ra 33K WAVENUMBER WAYENUMBER (CM-1l X hi * L: U CFC-1 13K 1.-. ' A I WAVENUMBER (CM-1 1,,,, D 8 7 (' 6 5 CFC-1 3K ' r a., We/ t WAVENUMBER (CM-1) FIGURE 1. CROSS SECTIONS FOR CFC-1

31 s. s. ffi. -- t Tal-B --. F w _ a 1 1 S, 1 * CFC-1 WAVENUMBER (1/CM) 93K 3 CFC-1 73K N3 * 8 u 6-18 I I 1 i r-., - - -rrrli ll--7 L 9 I I WAVENUMBER ( 1/CM Ḏ 16 (. 1 CFC-1 53K 1 (N 1 * 8 X: u6 c 181 I- IC-: WAVENUMBER (1/CM FIGURE 11. CROSS SECTIONS FOR CFC-1

32 k k.a a ~~~~~~~~~~~~C 18 w '16 s ' 1 -b -1 1 * 8 CFC-1 33K WAVENUMBER (1/CM) - 18 S16 's CFC WAVENUMBER (1/CM] 13K.. I III ~ ( N 8 u CFC-1 3K L -.,-,~ WAVENUMBER (1/CM ' '. - I I! -- ll I FIGURE 1. CROSS SECTIONS FOR CFC-1

33 18,, CFC-13 93K * 8 6 7tj WAVENUMBER (1/CM) * 8 u 6 CFC-13 73K N) _r_- 7 ' WAVENUMBER (1/CM) 18 a, CFC-13 53K S 1 1,v 1 * 8 u WAVENUMBER (I/CM) FIGURE 13. CROSS SECTIONS FOR CFC-13

34 1 CFC-13 33K 1 1, 1 * WAVENUMBER (1/CM) 18 CFC K h16 6s 1 1 * 8 6 7, WAVENUMBER (1/CM) U, 18 a, h 16 s 1 1, 1 CFC-13 3K 5 6 k.. 7( 5t?... X I7 7/ WAVENUMBER Il/CM) FIGURE 1. CROSS SECTIONS FOR CFC-13

35 I I e1 * 8 CFC-13 93K *CFI C ~ R8 7AA 7QF... V v "I.,.~ I u _ WAVENUMBER ICM-1 1 CFC-13 73K I ~ ~ [ L I I 18, (N 1. 8 u 6 7; WAVENUMBER (CM-1) a' - 16 (s * 8 u CFC-13 53K WAVENUMBER (CM-1i 785 FIGURE 15. CROSS SECTIONS FOR CFC-13

36 ,,i CFC-13 33K ( 1 L I,e CFC-13 13K - 1 ui 1 r. N 1 X,, WAVENUMBER (CM-1) 131) C 18 ao CFC- 13 3K * WAVENUMBER (CM-1) FIGURE 16. CROSS SECTIONS FOR CFC-13

37 ( CFC-13 93K 17/ 1B 'WAVENUMBER (1/CM) 11 wa 1 11 I 1 CFC-13 73K U (.. WAVENUMBER (1/CM) I. (_) CFC-13 53K WAVENUMBER (1/CM) 11 FIGURE 17. CROSS SECTIONS FOR CFC-13

38 I I CFC-13 33K CI bj (' X C AVENUF 33K (' U: I. WAVENUMBER (1/CM) I I1 I I (' u 3 1 CFC-13 3K 1 I V IvV IV at 11 WAVENUMBER I1/CM) FIGURE 18. CROSS SECTIONS FOR CFC-13

39 : * m u c Is* I 1 I' o 1 CFC-13 93K X I i, - I! 1 CFC-13 73K X 1 s lj 1. 8 * 6 u U.) WAVENUMBER ( 1/CM) 1h... _... CFC-13 53K 1, _._ WAVENUMBER (1/CM) FIGURE 19. CROSS SECTIONS FOR CFC-13

40 16 1 o 1 s 1 8 CFC K L WAVENUMBER (1/CM) It CFC K * 6 ' WAVENUMBER (1/CM) 16 1 o s ) CFC- 13 3K WAVENUMBER ( 1/CM) FIGURE. CROSS SECTIONS FOR CFC-13

41 = 1 1 CFC-1 93K LiJ (s UK.. CFC-1 73K WAVENUMBER (1/CM) 19 (' rnl,r- UJ == CFC-1 53K WAVENUMBER (1/CM) FIGURE 1. CROSS SECTIONS FOR CFC-1

42 r- 1 1 CFC-1 33K X WAVENUMBER (1/CM) I I 1 CFC-1 13K LIi C.o r'j Lii (if.i CFC-1 3K WAVENUMBER (1/CM) 19 FIGURE. CROSS SECTIONS FOR CFC-1

43 ^ CFC-1 93K ~J- ('I czj CU 11 CFC-1 73K (. S r- LaJ Ij C1 : M) /9. CFC-1 53K WAVENUMBER ICM-lJ FIGURE 3. CROSS SECTIONS FOR CFC-1

44 CFC-1 33K N- L; Is CFC-1 13K bij (N U, U: WAVENUMBER (CM I-, ' N 5 * CFC-1 3K I. 1 v7.-,.,/y.. '!. 1i WAVLNUMltBER (-1J FIGURE. CROSS SECTIONS FOR CFC-1

45 a. i c. *. L CFC- 93K WAVENUMBER (1/CM) O.5 b c.5 *. AU v 78 CFC- 73K WAVENUMBER (1/CM) wlo a 5 m c CFC- 53K WAVENUMBER (1/CM) FIGURE 5. CROSS SECTIONS FOR CFC-

46 L a o a?.5 CFC- 33K N.5 *. ' WAVENUMBER (1/CM) D N. CFC- 13K 1. WAVENUMBER (1/CM) a.5 i N.5 *. u _ CFC- 3K A I dil - mwo I *~~-e.a _ I -F * _l _ E_ i..._ WAVENUMBER I1/CM) FIGURE 6. CROSS SECTIONS FOR CFC-

47 a.5 i IV.5 * L a o O.5 C r.5 *. LI a 88. CFC- 93K I - r I r CCI- - --C C-- cl r r WAVENUMBER (CM-1) CFC- 73K WAVENUMBER ICM-1 O.W ).5 i c.5. ', 1.5 IL al 1..5 a 88. CFC- 53K WAVENUMBER (CM FIGURE 7. CROSS SECTIONS FOR CFC-

48 bi CD * CFC- 33K a N.5 *. l b. I X.5 m N.5 *. -) CFC- 13K WAVENUMBER (CM-1 ) CFC- 3K WAVENUMBER ICM-11 FIGURE 8. CROSS SECTIONS FOR CFC-

49 A gh * 1 * 1. CFC- 93K WAVENUMBER (1/CM). 3.5 a) 3..5 CFC- 73K. * WAVENUMBER (1/CM). 3.5 T 3. IJ.5. CFC- 53K l 1..5 a WAVENUMBER (1/CMI 115 FIGURE 9. CROSS SECTIONS FOR CFC-

50 . 3. m 3... A 1% CFC- 33K # as 3..5 CFC- 13K. Al 1.5 H WAVENUMBER (1/CM) a: 3. w.5. * 1.5 U 1..5 CFC- 3K WAVENUMBER (1/CM) FIGURE 3. CROSS SECTIONS FOR CFC-

51 CFC-, o 16, 1 _1 93K WAVENUMBER (1/CM) , 1-1 1l? 8 6, CFC- 73K I WAVENUMBER (I/CM) t 1-1 X 1 * CFC- 53K WAVENUMBER (1/CM) FIGURE 31. CROSS SECTIONS FOR CFC-

52 18 16 C CFC- 33K v WAVENUMBER (1/CM) Z 18 o, _ 1 1 CFC- 13K N WAVENUMBER (1/CM) 1335 CFC- 3K 18 o, 16 i WAVENUMBER ( 1/CM FIGURE 3. CROSS SECTIONS FOR CFC-

53 CFC K a (N Ci WAVENUMBER t(/cm) CFC K oa p-. p.- 8 a WAVENUMBER I 1/CM) CFC K, 16 1 r 8 I WAVENUMBER 1/CM) FIGURE 33. CROSS SECTIONS FOR CFC-113

54 ..,,o lju 16 1 I 8 CFC K _~~~~~~F- _ 13 33K r WAVENUMBER 1 /CM) L *,~ ~~~~~ ~ CFC K CP e c' Cs An WAVENUMBER (1/CM) CFC-113 3K a I I WAVENUMBER I1/CM) FIGURE 3. CROSS SECTIONS FOR CFC-113

55 CFC K o C'J 1 WAVENUMBER (CM-1) CFC K Cy' 1 c' U bj- -P- (ON WAVENUMBER (CM-1) CFC K Co 16 1 m 8 u v WAVENUMBER (CM-1) FIGURE 35. CROSS SECTIONS FOR CFC-113

56 CFC K ('d L) WAVENUMBER (CM-1 CFC K O'! _r_ WAVENUMBER (CM-1 ) CFC K oa UJ 16 1 : WAVENUMBER (CM-1i FIGURE 36. CROSS SECTIONS FOR CFC-113

57 - _ oa : 8 CFC K WAVENUMBER (1/CM) ao CFC r 73K ('3 8-1 J-- I --Ir ,--' LI WAVENUMBER ( 1/C CFC K o IJ t I WAVENUMBER 1/CM) FIGURE 37. CROSS SECTIONS FOR CFC-113

58 CFC K a'.id * 1 1 : (.. 1 WAVENUMBER (I/CM) CFC K o, WAVENUMBER (1/CM) CFC-113 3K ' '16 X WAVENUMBER 1/CMJ FIGURE 38. CROSS SECTIONS FOR CFC-113

59 o r 3 CFC-11 93K I * 5 (N * 1 5 L 1 5 ~ ~ ~ ~ ~ ~ ~ ;~-- -" WAVENUMBER (1/CM) -.. i M D I I I o 3 5 * 15 U 1 5 CFC-11 73K I.... -A- - I UO HL N - -, I WAVENUMBER ( 1/CM) 35 o 3 5. * 15-1 CFC-11 53K t r I İ I II _~,- - % WLrr* - - -CC~I)C~U WAVENUMBER (I1/CM) FIGURE 39. CROSS SECTIONS FOR CFC-11

60 A CFC-11 33K ea c (N * I 1 Adl CFC-11 13K 3 UL (N "1 1 WAVENUMBER (1/CM) AM CFC-11 3K 35? 3 hj 5 C#1 * 15 < 1 5 S l u WAVENUMBER (1/CMJ FIGURE. CROSS SECTIONS FOR CFC-11

61 35 K 3 CFC-11 93K - - :. r 5 * 15 u 1 5 8S WAVENUMBER (CM-1) I CFC-11 73K I 35 o 3 5 I Ln IX # 15 u L- v8 8_5 F WAVENUMBER (CM-1 ) o? 3 c 5 * 15 C 1 CFC-11 53K WAVENUMBER (CM-1) 85 FIGURE 1. CROSS SECTIONS FOR CFC-11

62 - 35? 31 CFC-11 33K ' X WAVENUMBER (CM-1) A Di qv 35 o 3 CFC-11 13K 5 U, 15 : WAVENUMBER (CM-1) 35 as 3 LJ 5 um * 1 5 CFC-11 3K 5 QA v.., o,, 7 / uimur~~~l~lll~~ocr3. 85 df," ~ WArtNUMBR (CM-1 FIGURE. CROSS SECTIONS FOR CFC-11

63 I A CFC-11 93K ;L7j1 r'j WAVENUMBER 1/CM). A. 1 1 ar I' w 1 CFC-11 73K - 8 cm 6 Ln S-,, WAVENUMBER (1/CM,..A 1 q 1 o' w, 1-8 C 6. CFC-11 53K WAVENUMBER (1/CMJ FIGURE 3. CROSS SECTIONS FOR CFC-11

64 I A I (71 L 1 3 CFC-11 33K X (NJ : u wivlnumber u/cmii 1 or 1 U I A i CFC-11 13K Ln En sr WAVENUMBER (1/CM) UJle 6 m(n a: U IA lit 1 8 CFC-11 3K Our o 'Vutsla WAVENUMBER (1/CM) FIGURE. CROSS SECTIONS FOR CFC-11

65 1 A CFC-11 93K JI I: WAVENUMBER (1/CM) 1 1 CFC-11 73K w 1-8 r 6 Ul CIN U WAVENUMBER (1/CM) ,J 1-8,, 6 CFC-11 53K WAVENUMBER ( 1/CM) 17 FIGURE 5. CROSS SECTIONS FOR CFC-11

66 A CFC-11 33K Ca) WAVENUnBER (1/CM) A CFC-11 13K I' I nu -J 1 1 CFC-11 3K I - 8 o< I 6 I 1 I VilJ 1 KJ l WAVENUMBER (1/CM) 17 FIGURE 6. CROSS SECTIONS FOR CFC-11

67 ItC - -I --- CFC-11 93K i. (7 a, - 1 C 1 * r-» CFC-11 73K.('J ui 8 o G 16 cn CFC-11 53K WAVENUMBER I1/CM) FIGURE 7. CROSS SECTIONS FOR CFC-11

68 a, L -:1 C1.%n CFC-11 33K Z: u i CFC-11 13K, - 16 rc 1 U, 'I 8: WAVENUMBER (1/CM) 8 (' u - 16 ca 1 CFC-11 3K 1 WAVENUMBER 11/CM) FIGURE 8. CROSS SECTIONS FOR CFC-11

69 CFC K 8 a i ' VAVENUMBER I 1/CM) CFC K 8 X 16 1 u WAVENUMBER (1/CM) CFC K 8. i 16 ' a] I WAVENUMBER 1H/CM) FIGURE 9. CROSS SECTIONS FOR CFC-115

70 CFC K (' I CFC K 8 a, I 16 1 u 8 3' ON WAVENUMBER ( 1/CM) CFC-115 3K 8, i 16 N WAVENUMBER 1t/CM) FIGURE 5. CROSS SECTIONS FOR CFC-115

71 CFC K a, wa WAVENUMBER (CM-1) CFC K 8 o, 9 16 " 1 ( X: 8 q I. _ WAVENUMBER (CM-1) 35 8 CFC K r - o, i 16 N 1 II 5 8 I 97' WAVENUMBER (CM ~ A ~~~~ ~ 98~~rl ~ n... FIGURE 51. CROSS SECTIONS FOR CFC-115

72 8 CFC K 7 1 o 16 I 1 8 _ 97! WAVENUMBER (CM-11 CFC K 8 a, s 16 r WAVENUMBER (CM-11 CFC-115 3K 8., ' WAVENUMBER ICM-1) FIGURE 5. CROSS SECTIONS FOR CFC-115

73 18 i 16 1 v 1 1 * 8 6 CFC WAVENUMBER (1/CM) 93K,...., * * w v v * * v * - - * v v s r v - v v 18, 16 ' 1 1 1e * 8 u 6 CFC i WAVENUMBER (1/CM) 73K a' C<A r^ 18 ' % 1 * CFC K WAVENUMBER (1/CM) 115 FIGURE 53. CROSS SECTIONS FOR CFC-115

74 Z J-16 ' 1 1 En CFC K WAVENUMBER (1/CM) 115 O' ISl XJ 1 (N 8 u CFC K WAVENUMBER (1/CM) 115 ON t.n Oa - 16 ; 1 1 N 1 * CFC-115 3K WAVENUMBER (1/CM) FIGURE 5. CROSS SECTIONS FOR CFC-115

75 CFC K 6 o, 5 3 r 1 a v WAVENUMBER (1/CM) CFC K 6 o; 5 * 3 ' 'N WAVENUMBER (1/CM) CFC K 6 a' 5 3 : 1 11 WAVENUMBER (1/CM) 6 FIGURE 55. CROSS SECTIONS FOR CFC-115

76 CFC K 6 o, 5 3 r WAVENUMBER ( 1/CM) CFC K 6 o, 5 - U 1 I WAVENUMBER ( 1/CM) CFC K 6 ao WAVENUMBER l1/cm) FIGURE 56. CROSS SECTIONS FOR CFC-115