"Through-space" spin coupling between phosphorus and hydrogen in π-C5H5W(CO)2PR3X

Kennedy, J. D., McFarlane, W. and Rycroft, D. S. (1973) "Through-space" spin coupling between phosphorus and hydrogen in π-C5H5W(CO)2PR3X. Inorganic Chemistry, 12(11), p. 2742. (doi: 10.1021/ic50129a052)

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[Second paragraph in lieu of Abstract] It has recently been suggested that in trans-π-C5H5W(CO)2PR3X [R = CH3, C6H5, OCH3, etc.; X = I, Sn(CH3)3] the observed couplings of 1–2 Hz between 31P and the protons of the π-cyclopentadienyl rings [3J(31P・・・H)] are primarily "through-space" in origin. The main evidence for this is that 2J(31P・・・13C) which involves some of the same bonds as the 31P–H coupling is apparently zero, and the authors of ref 4 believe this would not be so if there were appreciable electronic interaction between phosphorus and the cyclopentadienyl ring. We wish to offer an alternative interpretation and suggest that the observed coupling constants can be accounted for satisfactorily by a mechanism which involves the normal chemical bonds.

Item Type:Articles
Keywords:Organometallic chemistry, phosphorus chemistry, NMR spectroscopy.
Glasgow Author(s) Enlighten ID:Rycroft, Dr David
Authors: Kennedy, J. D., McFarlane, W., and Rycroft, D. S.
Subjects:Q Science > QD Chemistry
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Inorganic Chemistry
Publisher:American Chemical Society
ISSN (Online):1520-510X

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