Magnetic double resonance studies of trimethylstannylphosphines and their complexes

McFarlane, W. and Rycroft, D. S. (1974) Magnetic double resonance studies of trimethylstannylphosphines and their complexes. Journal of the Chemical Society: Dalton Transactions, 1974(18), pp. 1977-1979. (doi:10.1039/DT9740001977)

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Abstract

The reduced coupling constant 1K(PSn) has substantial negative values in the compounds (Me3Sn)3–nPhnP (n= 0–2) and increases algebraically to values close to zero in transition metal carbonyl complexes (Me3Sn)3–nPhnPM(CO)5 (M = Cr, Mo, or W). This behaviour parallels that of 1K(PC) in analogous compounds but there is a substantial negative contribution in the tin-containing compounds which is attributed to a larger energy gap between the phosphorus and tin valence atomic orbitals. In contrast with the behaviour of triorganophosphines the phosphorus chemical shifts do not vary linearly with n, and the changes in phosphorus shielding which accompany complex formation are discussed.

Item Type:Articles
Keywords:Phosphorus chemistry, NMR spectroscopy, multiple resonance.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Rycroft, Dr David
Authors: McFarlane, W., and Rycroft, D. S.
Subjects:Q Science > QD Chemistry
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Journal of the Chemical Society: Dalton Transactions
Publisher:The Chemical Society
ISSN:0300-9246

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