Nuclear magnetic double resonance studies of isotopically labelled bis-(dichlorophosphino)methylamine partially oriented in a nematic liquid crystal
- 1 January 1977
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics
- Vol. 73 (5) , 722-728
- https://doi.org/10.1039/f29777300722
Abstract
CH3N(PCl2)2 isotopically labelled with 13C or 15N and oriented in the nematic phase of EBBA has been studied by heteronuclear magnetic double resonance. The derived geometry is similar to that of the fluorine analogue, i.e., the molecular skeleton is planar, with ∠PNP = 117 ± 0.5° and r(PN)= 166.4 ± 1 pm. 1J(31P—15N) may exhibit significant anisotropy. Components of the shielding tensors for 13C, 15N and 31P are also reported.Keywords
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