Polyphosphorus ligands-V. The synthesis, phosphorus-31 NMR spectra and conformations of the polykis(diphenylphosphino) benzens (Ph2P)nC6H6-n (n = 1-4) | Health & Environmental Research Online (HERO)

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Citation
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HERO ID

8625277

Reference Type

Journal Article

Title

Polyphosphorus ligands-V. The synthesis, phosphorus-31 NMR spectra and conformations of the polykis(diphenylphosphino) benzens (Ph2P)nC6H6-n (n = 1-4)

Author(s)

Mcfarlane, HCE; Mcfarlane, W

Year

1988

Is Peer Reviewed?

Journal

Polyhedron
ISSN: 02775387

Volume

Issue

19-20

Page Numbers

1875-1879

Language

English

DOI

10.1016/S0277-5387(00)80699-3

Abstract

All isomers of (Ph2P)nC6H6-n (n = 1-4) have been prepared by the reaction between the corresponding isomer of C6H6-nFn and Ph2PNa in liquid ammonia. In many cases their phosphorus-31 NMR spectra are structurally diagnostic, with δ(31P) having values characteristic of the stereochemical environment of the Ph2P unit, and the couplings 3J(PP) being conformationally dependent and lying in the range 35-154 Hz, while 4J(PP) and 5J(PP) are much smaller. © 1988.