The microwave spectrum and structure of phosphaethene, ch2=ph

Ronald D. Brown, Peter D. Godfrey, Donald McNaughton

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The microwave spectra of phosphaethene (methylenephosphine) and five of its isotopic species have been observed and assigned in the region 5-125 GHz. Rotational constants and moments of inertia have been determined for 12CH2PH, 13CH2PH, 12CD2PD, 12CD2PH, (Z)-12CHDPH and (E) 12CHDPH. The moments of inertia have been used to determine the following structural parameters: rP-H= 1·425Å; rC-P=l·671Å; rc-H = 1·082 Å; ∠HCP(Z) = 124·5°; ∠HCP(E) = 119·1°; ∠CPH = 95.5°. The dipole moment components have been determined as j˜, = 0.7233(7) D and pb = O·4657(11) D.

Original languageEnglish
Pages (from-to)465-470
Number of pages6
JournalAustralian Journal of Chemistry
Issue number3
Publication statusPublished - 1981

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