Open Access

Table 2

Rotational Qrot and vibrational partition functions Qvib for isobutene at temperatures (K) implemented in the CDMS.

Temperature (K) Qrot Qvib
300.000 1 493 981.0421 2.278
225.000 970 052.1240 1.787
150.000 527 900.3030 1.351
75.000 18 6656.4270 1.046
37.500 66 044.4178 1.001
18.750 23 393.8153 1.000
15.000 16 755.3941 1.000
9.375 8303.1944 1.000
5.000 3256.3920 1.000
2.725 1326.5615 1.000

Notes. See text for details.

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