First detection of doubly deuterated methyl acetylene (CHD2CCH and CH2DCCD)

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Table 4

Rotational partition functions for CHD₂CCH and CH₂DCCD.

Temperature (K)	Q_rot ^(a)

	CHD₂CCH	CH₂DCCD
300.0	11646.9629	10855.0235
225.0	7563.8563	7049.8187
150.0	4117.1979	3837.5133
75.00	1456.4144	1357.4949
37.50	515.6773	480.6346
18.75	182.8944	170.4479
9.375	65.0786	60.6361
5.000	25.6362	23.8844
2.725	10.5863	9.9782

Notes. ^(a) Computed including energy levels up to J = 100.

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