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Table 2.

Rotational, vibrational and conformational partition functions for succinonitrile together with the abundance fraction of the gauche conformer (Xg) at different temperatures.

Temperature/K Qr Qv Qc Xg(a)
300.000 146 147.3 15.4 1.20 0.20
225.000 99 421.3 6.5 1.12 0.12
150.000 55 436.2 2.8 1.04 0.04
75.000 19 659.0 1.3 1.00 1.69 × 10−3
37.500 6945.8 1.1 1.00 2.88 × 10−6
18.750 2456.3 1.0 1.00 8.32 × 10−12
9.375 869.6 1.0 1.00 6.92 × 10−23

Notes.

(a)

Xg is the ratio between the population of gauche and trans conformers, Xg = ngauche/ntrans.

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