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Magnitudes and orientations of 31P chemical shielding tensors in Pt(II)-phospine complexes and other four-fold coordinated phosphorus sites

Bechmann, M., Dusold, S., Geipel, F., Sebald, A. and Sellmann, D. (2005) Magnitudes and orientations of 31P chemical shielding tensors in Pt(II)-phospine complexes and other four-fold coordinated phosphorus sites. Journal of Physical Chemistry A, 109 (24). pp. 5275-5280. ISSN 1089-5639

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Abstract

31P MAS and double-quantum filtered 31P MAS NMR experiments at and near the n = 0 rotational resonance condition, as well as off-magic angle spinning 31P NMR experiments on two polycrystalline samples of Pt(II)−phosphine thiolate complexes are reported. Numerical simulations yield complete descriptions of the two 31P spin pairs. 195Pt MAS NMR spectra are straightforward to obtain but sensitively reflect only some parameters of the 195Pt(31P)2 three-spin system. Based on the 31P NMR results obtained and in conjunction with a large body of literature data and irrespective of the chemical nature of the specimen, a unified picture of the dominating motif of 31P chemical shielding tensor orientations of phosphorus sites with 4-fold coordination is identified as a local (pseudo)plane rather than the directions of P element bond directions.

Item Type: Article
Institution: The University of York
Academic Units: The University of York > Chemistry (York)
Depositing User: York RAE Import
Date Deposited: 20 Apr 2009 12:14
Last Modified: 20 Apr 2009 12:14
Published Version: http://dx.doi.org/10.1021/jp045353p
Status: Published
Publisher: American Chemical Society
Identification Number: 10.1021/jp045353p
URI: http://eprints.whiterose.ac.uk/id/eprint/6839

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