Microwave Spectrum of Methane-d2, CH2D2
Keyword(s):
Three rotational transitions of methane-d2 were observed by a source-modulation microwave spectrometer. The two differences in the rotational constants, A – C and B – C, were determined to be 37 555.758 and 13 664.280 MHz, respectively, from the observed frequencies of 110 ← 101 and 211 ← 202 after correcting for the centrifugal distortion effects. The centrifugal distortion constants were evaluated by a normal coordinate analysis. The dipole moment of CH2D2 was determined to be 0.014 ± 0.005 D, by comparing the intensity of 211 ← 202 with that of an oxygen line.
1991 ◽
Vol 46
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pp. 229-232
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1975 ◽
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pp. 2247-2251
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1994 ◽
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1989 ◽
Vol 44
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pp. 680-682
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1976 ◽
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pp. 594-601
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1978 ◽
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pp. 598-601
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1976 ◽
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pp. 527-532
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1974 ◽
Vol 29
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pp. 1081-1096
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