25Table 9. Vibrational Energy Levels and Molecular Constants for CO2 (Contd)2001212211 c12211 d2001101121 c01121 d21113 c21113 d1,312 cd21112 621112 d13111 cd21111 c21111 d3Wl.22213 c22213 d3001322212 c22212 d3001222211 c22211 d3001111122 c11122 d0003131114 531114 d31113 c31113 d31112 c31112 ”31111 c31111 d01131 c01131 d400134001210032100310000101101 c01101 d1000202201 c02201 dlowl11102 c11102 d03301 cd11101 511101 doooll2000312202 c12202 d2000204401 cd12201 c12201 d20001n1111 c21103 c21103 d13302 cd21102 c4987.3%0.m6a.71.4,4939.80 .366311.441.404991.350.3%7050.945166.600.3946951.33.3653051.335357.004 36%14 1.50:390106 1.695397.09 .399781.305519.%4 .39,0361.16.396206 1.305599.17 .399071.44S662.269.3%6371.10.397936 l.w5951.600.39%402.3265970.949.39%131.571.336119.618 .36754dI.7866155.37 .38852 1.361.306241.964 .3858591.1136326.049 .399103 1.041.356363.616 .397033 0.9066374.49, .36521 1.46.36607 1.566790.215.3113531.336552.954.3*09591.63.39a9%1.636736.6%.397x91.63.3999061.596692.054.3963,91.33.397,061.m7046.029.38W%1.23.396236 0.93,39,.599.381903 1.33.362391 1.337481.510 .395435 0.337600.130.38%550.637981.1~0.3922,51.529ce9.040.,a07351.26IDtom b290.00.366164 1.11662.36A.,6.95cm1.13.369129 1.131259.430 .369114 1.261325.15.3695201.201.1613665.645.36%02 0.9621901.748.,6045 1.23.369251.261%9.326.370162 1.202049.346.36860 1.06.36954 1.012332.112.36526,1.112SOO.776.3664631.442549.425.36954 1.251.272614.235.36780, 1.042651.975.37095 1.222729.264.36966 1.301.072727.229.3690390.772%2.106.365,0,1.13,127.,1.36855 1.34.36 671.433200.15.3 r231.283291.07 .369171.1421102 d32*1.0713301 cd 3d04.9321101 c3453.9921101d100123571.14302211c3632.52d'Wll3675.1303cco33056.65,3wo2 39.7.61011112 E4261.1911112 d03311 cd 4293.3511111 c4346.1311111 d00021 4639.502200134791.26012212c4936.63d2w12 4904.%012211 55012.55d200115041.s7001121 c5277.147d21113 c5406.069d21112c55%.553d21111 c5727.046d10022%%.022022215J9lS.23d10021 5959.5%30014W92.591300136127.7923001262%. 59230011 6429.172-316922.21010032 6120.104100319220.3630.369161.12.370,, 1.2-a.36aBl O.%.37007 0.90.361294 1.27.366595 1.191.1s.3655240.95.36,4051.24.369174 0.91.36%661.23.366423 1.m.367261.19.3657161.05.366%9 1-w.362372 1.11.365734 1.50.366707 1.251.27.3648.41.11.3%7351.261.06.366126 O.%.36%69 1.06.I363356 1.m.36%931.41.3%9041.31.%53111.10. %a601.10.365949 1.11.%I1360.01.3614903.357.%3761.181.15.3626050.0%.3663371.79.3644951.31.365274 0.94.366616 0.60.35%791.10.359694 1.25.35%560.95I.o- 627wool0.w.37%41 1.20s01101 c%4.,3501101 d100021271.97502201 c1329.9702201 d100011376.2911102 5 1916.3111102d03301 cd1995.%11101 e 2062.4111101d00011 2340.01200032523.5812202 c2%6.3312202 d20002 2641.2612201 c 2743.6612201 d2wOl2776.00011116 2992.31001111 d100123590.%02211 c3645.02“2211 dlWl13693.64.379065 1.22.37%391.22.379736 1.40.YoO611.241.22.37(*01 1.04.37903 1.27.37%91.32.379771.22.37994 1.15.37%71.10.37%59 1.20.37924 1.60.3601291.351.25.37614 1.18.3mo5 1.201.2,.379270.8s.376103 1.22.3766641.22.,‘I%351.38.3770911.241.22.3757541.0611112 c11112 d11111 E11111 d0002120013260122001121112 a21112 d0003101101 c01101 d1000202201 c02201 d1000100011mQQ2c01111 c01111 d1001202211 c02211 d100110002120012owol01101 c01101 dldOO202201 c02201 d10001WOll01111 601111 d16002100010000101101 c01101 d10002OJ2olC02201 dldOO10001101111 c01111 d10002100030000101101 e01101 doooll4223.33 0.37616.377w4367.09.3,600.376%4655.205 .3726744921.500.3x4114939.350-3751315064.910 .3763215593.645.37%as.I767596M5.610.36%91I- 6%0.w. Wlrn643.23.36657.369121244.9,.36620llM..M.369511342.37.366442265.973.3653%1996.43.36779299,. M. MS79.366333490.39.365%3529.59 .366713567.54 .365156S06.749-362604814.570.364610z- 6370.00.37%5.645.72.379036.37%271254.93.379001292.90.3owo1355.52.3,*492274.33.375,92910.36.37617.376753509.07.376433609.05.,‘I%0ImotoP9 am0.00.3u7996S7.33.347224.3477361230.20.346201315.w .3UlZ1347.22 .347765313.97 .344122959.06.34415.34sM3125.205 .343Mo3639.067.34d4%1Mop 7260.00.3%95659.70 -35737.357991322.52.3%191.311.341.181.151.201.621.211.001.221.221.201.111.121.121.301.141.110.901.111.041.121.121.261.141.121.011.111.111.211.221.221.401.221.221.041.211.221.221.411.111.041.041.041.101.041.041.041.041.160.9071.071.091.001.07:ithis scheme,v2 is always equal to J! .) The desirability 01 lahclling the states inFermi resonance by the same symbols except for r is to emphasize the veryimportant role played by the Fermi resonance, which is very nearly exact for mostof the groups. It must also be emphasized very strongly that the long-establishedcustom of calling the upper level of the (10’0, 02’0) resonance at 1388.18 cm-1,pl, and the lower level at 1285.41, 2~~. is not only confusing the issue, but iswrong, since the now ten year old work of Amat and Pindert (19651 has shown thatthe unperturbed position of 2~; lies above that of yol, in the 626 isotope. This isalso true in 627, 628, and 828, but in 636, 637, 638, it lies below. It seems vastlypreferable always to label the upper level 10001 and the lower 10002.4.2.2 LINE INTENSITIESThe intensity data (summarized in Table 10) are based on quantitative studiesof resolved lines where such exist; and where not, on total intensities in a givenregion. The relations between the strengths of the principal band in a region andits associated weaker “hot” and isotopic neighbors were based on computationsrelating the transition moments to the vibrational eigenfunctions, taking into ac-count terms up to the quartic in the molecular constants, with particular attentionto the degree’of Fermi mixing in the states, and an approximate calculation of the“unperturbed” (before Fermi mixing) transition moments. This procedure appearsto give fairly good agreement for the ground-state and “first-hot” transitions insuch Fermi groups as 2001-0000 and 3001-0000, and seems adequate for estimatingstrengths of higher unobserved hot bands. However, when experimental data areavailable (Burch, 19701, as for the 12201-11102 band at 828.28 cm-1, these wereused.For the isotopic molecules, empirical data were again used where available,as for 628 bands which are forbidden in the symmetric molecules. When the iso-topic bands overlap stronger bands of 626, the abundance ratios were used toestimate the total strength of a group, but the particular Fermi parameters wereused to divide the strengths.The influences of vibration-rotation interactions on line intensities has beenmeasured in some cases. As a generalization, it can be