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Mercury(II) halide complexes of tertiary phosphines. Part XVII. Complexes of the very basic and sterically demanding ligand, tris(2,4,6-trimethoxyphenyl)phosphine (TMPP) of stoichiometry (TMPP)x(HgX2)y(X=Cl, Br, I;x=1, 2;y=1:x=2,y=3: X=I;x=1,y=2). Crystal structures of the monomeric 1:1 complexes (TMPP)HgX2(X=Br, I) and (TMPP) (HgI2)2

Authors
Journal
Polyhedron
0277-5387
Publisher
Elsevier
Publication Date
Volume
21
Issue
18
Identifiers
DOI: 10.1016/s0277-5387(02)01042-2
Keywords
  • Mercury(Ii) Halides
  • Phosphine Complexes
  • Crystal Structures

Abstract

Abstract Reactions between the bulky ligand tris(2,4,6-trimethoxyphenyl)phosphine (TMPP) and HgX 2 (X=Cl, Br, I) in ethanol have been described. Complexes of stoichiometry (P:Hg) 1:1, 2:1 and 2:3 have been isolated and their spectral features discussed. The structures of the 1:1 bromide and iodide show them to be discrete monomers unlike most other tertiary phosphine analogues. Additionally a complex of stoichiometry TMPP(HgI 2) 2 has been prepared and characterised structurally as (TMPP)HgI(μ-I)HgI(μ-I) 2HgI(μ-I)HgI(TMPP).

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