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Synthesis and coordination chemistry of neutral phospha(III)guanidines. Formation of 1-aza-3-phospha-4-metallacyclobut-1-ene rings at group 6 metals

Synthesis and coordination chemistry of neutral phospha(III)guanidines. Formation of 1-aza-3-phospha-4-metallacyclobut-1-ene rings at group 6 metals
Synthesis and coordination chemistry of neutral phospha(III)guanidines. Formation of 1-aza-3-phospha-4-metallacyclobut-1-ene rings at group 6 metals

The neutral phospha(III)guanidine compounds, Ph2PC{NR} {NHR} (1a, R = Cy; 1b, R = iPr), are reported. NMR spectroscopic data indicated the presence of the Esyn isomer in solution and structural studies confirmed this in the solid-state. Reaction of 1a with M(CO) 4(pip)2 [M = Mo, W; pip = piperidine] proceeded via displacement of the piperidine ligands to generate the complexes M[Ph 2PC{NCy} {NHCy}](CO)4 (2a, M = Mo; 3a, M = W). The X-ray structure of 2a and 3a were solved, showing the first structurally characterised examples of 1-aza-3-phospha-4-metallacyclobut-1-ene rings.

1477-9226
2573-2577
Grundy, Joanna
0bc72187-8dce-41fc-b809-93a6adbe0980
Coles, Martyn P.
4cb5ee08-daf9-4b58-9627-61732e0a818b
Hitchcock, Peter B.
4c0fe381-c3e8-452c-a284-fe14acd3b748
Grundy, Joanna
0bc72187-8dce-41fc-b809-93a6adbe0980
Coles, Martyn P.
4cb5ee08-daf9-4b58-9627-61732e0a818b
Hitchcock, Peter B.
4c0fe381-c3e8-452c-a284-fe14acd3b748

Grundy, Joanna, Coles, Martyn P. and Hitchcock, Peter B. (2003) Synthesis and coordination chemistry of neutral phospha(III)guanidines. Formation of 1-aza-3-phospha-4-metallacyclobut-1-ene rings at group 6 metals. Dalton Transactions, (12), 2573-2577. (doi:10.1039/b302554c).

Record type: Article

Abstract

The neutral phospha(III)guanidine compounds, Ph2PC{NR} {NHR} (1a, R = Cy; 1b, R = iPr), are reported. NMR spectroscopic data indicated the presence of the Esyn isomer in solution and structural studies confirmed this in the solid-state. Reaction of 1a with M(CO) 4(pip)2 [M = Mo, W; pip = piperidine] proceeded via displacement of the piperidine ligands to generate the complexes M[Ph 2PC{NCy} {NHCy}](CO)4 (2a, M = Mo; 3a, M = W). The X-ray structure of 2a and 3a were solved, showing the first structurally characterised examples of 1-aza-3-phospha-4-metallacyclobut-1-ene rings.

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More information

Accepted/In Press date: 30 April 2003
e-pub ahead of print date: 16 May 2003
Published date: 21 June 2003

Identifiers

Local EPrints ID: 426195
URI: http://eprints.soton.ac.uk/id/eprint/426195
ISSN: 1477-9226
PURE UUID: f3c17e1a-79f6-4e52-b948-2a871bf49b3b

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Date deposited: 16 Nov 2018 17:30
Last modified: 16 Nov 2018 17:30

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