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Table 5

Rotational, vibrational, and conformational partition functions for both cis and trans isomers of CPCA at different temperatures.

Temperature/K Qr (c)(a,b) Qr (t) Qv(c) Qv(t) Qc X(t/c)
350.000 82 331.3 86 128.5 7.3 6.8 0.83 1.83
300.000 65 822.4 69 359.9 4.8 4.5 0.81 1.81
225.000 42 979.0 45 656.3 2.8 2.6 0.75 1.75
150.000 23 411.5 24 951.4 1.7 1.6 0.66 1.66
75.000 8275.4 8823.1 1.1 1.1 0.43 1.43
37.500 2927.1 3120.7 1.0 1.0 0.18 1.18
18.750 1036.3 1104.6 1.0 1.0 0.03 1.03
9.375 367.5 391.5 1.0 1.0 0.00 1.00

Notes. (a) Qr, Qv, and Qc are the rotational, vibrational, and conformational partition functions, respectively. X(t/c) is the trans/cis isomer ratio at different temperatures. (b)c and t refer to cis and trans isomers, respectively.

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