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Mercury halide complexes of tertiary phosphines. Part XVI. Dimer-monomer trend in the 1 : 1 complexes of mercury(II) halides with bulky tris(2,6-dimethoxyphenyl)phosphine (DMPP)

Mercury halide complexes of tertiary phosphines. Part XVI. Dimer-monomer trend in the 1 : 1 complexes of mercury(II) halides with bulky tris(2,6-dimethoxyphenyl)phosphine (DMPP)
Mercury halide complexes of tertiary phosphines. Part XVI. Dimer-monomer trend in the 1 : 1 complexes of mercury(II) halides with bulky tris(2,6-dimethoxyphenyl)phosphine (DMPP)
Reactions of HgX2 (X = Cl, Br, I) with the very bulky tertiary phosphine, tris(2,6-dimethoxyphenyl)phosphine (DMPP), in either a 1:1 or a 1:2 ratio, result in only the isolation of the 1:1 adducts. The structures adopted in the solid state are markedly influenced by the steric requirement of the phosphine. In contrast to the 1:1 triphenylphosphine adducts reported earlier, which are dimeric, the DMPP mercury(II) chloride and bromide complexes are weakly linked dimers while the iodide is the first example of a mercury iodide-phosphine complex with a monomeric distorted trigonal-planar arrangement around mercury. All three complexes contain secondary interactions with the o-methoxy groups.
mercury(ii) halides, phosphine complexes, crystal structures nuclear-magnetic-resonance, carbon-monoxide reactions, crystal-structure, vibrational-spectra, rhodium(ii) complex, 1-1complexes, solid-state, tris(2, 4, 6-trimethoxyphenyl)phosphine, triphenylphosphine, ligands
0277-5387
1719-1726
Bell, N. A.
47cc80d0-2cca-4909-99b4-26c8ae19fae2
Coles, S. J.
503a9d9c-0380-4fcd-ad31-cd329255c08e
Hursthouse, M. B.
276e7125-0773-43f6-97e3-77106e9b6e8f
Light, M. E.
5f2f6119-008d-4681-8ea0-e32559c94ddd
Malik, K. A.
4a12b373-51ea-4418-90dd-8103f0fdeb34
Mansor, R.
b24a4a8e-5ee8-4048-a98c-7b3bc2cce833
Bell, N. A.
47cc80d0-2cca-4909-99b4-26c8ae19fae2
Coles, S. J.
503a9d9c-0380-4fcd-ad31-cd329255c08e
Hursthouse, M. B.
276e7125-0773-43f6-97e3-77106e9b6e8f
Light, M. E.
5f2f6119-008d-4681-8ea0-e32559c94ddd
Malik, K. A.
4a12b373-51ea-4418-90dd-8103f0fdeb34
Mansor, R.
b24a4a8e-5ee8-4048-a98c-7b3bc2cce833

Bell, N. A., Coles, S. J., Hursthouse, M. B., Light, M. E., Malik, K. A. and Mansor, R. (2000) Mercury halide complexes of tertiary phosphines. Part XVI. Dimer-monomer trend in the 1 : 1 complexes of mercury(II) halides with bulky tris(2,6-dimethoxyphenyl)phosphine (DMPP). Polyhedron, 19 (14), 1719-1726. (doi:10.1016/S0277-5387(00)00451-4).

Record type: Article

Abstract

Reactions of HgX2 (X = Cl, Br, I) with the very bulky tertiary phosphine, tris(2,6-dimethoxyphenyl)phosphine (DMPP), in either a 1:1 or a 1:2 ratio, result in only the isolation of the 1:1 adducts. The structures adopted in the solid state are markedly influenced by the steric requirement of the phosphine. In contrast to the 1:1 triphenylphosphine adducts reported earlier, which are dimeric, the DMPP mercury(II) chloride and bromide complexes are weakly linked dimers while the iodide is the first example of a mercury iodide-phosphine complex with a monomeric distorted trigonal-planar arrangement around mercury. All three complexes contain secondary interactions with the o-methoxy groups.

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More information

Published date: 15 July 2000
Keywords: mercury(ii) halides, phosphine complexes, crystal structures nuclear-magnetic-resonance, carbon-monoxide reactions, crystal-structure, vibrational-spectra, rhodium(ii) complex, 1-1complexes, solid-state, tris(2, 4, 6-trimethoxyphenyl)phosphine, triphenylphosphine, ligands

Identifiers

Local EPrints ID: 18976
URI: https://eprints.soton.ac.uk/id/eprint/18976
ISSN: 0277-5387
PURE UUID: d1182662-c84c-42b5-8965-8486459aab7a

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Date deposited: 16 Dec 2005
Last modified: 17 Jul 2017 16:34

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