Molecular polarisability. Conformations as solutes of the molecules Ph2X, where X = O, S, Se, and NH
- 1 January 1966
- journal article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society B: Physical Organic
- p. 1064-1066
- https://doi.org/10.1039/j29660001064
Abstract
The dipole moment and molar Kerr constant of Ph2Se are 1·37D and 15·7 × 10–12, respectively. The four molecules of the title may adopt conformations in which the phenyl groups are rotated about their C–X bonds by angles ϕ1 and ϕ2 out of coplanarity with the C–X–C triangle. On present evidence decisions between models of type C (ϕ1= O, ϕ2= 90°) and others of type D (ϕ1=ϕ2= 37° for Ph2O, 46° for Ph2S, 48° for Ph2Se, and 75° for Ph2NH) cannot be made with certainty.Keywords
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