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Polymeric Complexes of Silver(I) with Diphosphine Ligands: Self-Assembly of a Puckered Sheet Network Structure

2002; American Chemical Society; Volume: 124; Issue: 15 Linguagem: Inglês

10.1021/ja0113293

1943-2984

Marie-Claude Brandys, Richard J. Puddephatt,

Metal complexes synthesis and properties

The syntheses and structures of polymeric silver(I)-diphosphine complexes are reported, in which the silver(I) center is surrounded by 1, 2, or 3 phosphorus atoms. When rigid diphosphine ligands are used in combination with weakly coordinating anions, linear polymers are obtained that contain both diphosphine and anion bridges. However, with excess of a diphosphine with a long, flexible, spacer group, a remarkable puckered sheet structure, comprised of fused giant 54-membered rings, is obtained that is a coordination polymer analogue of laminated materials such as micas and clays. The polymeric chain and sheet structures may be considered to be formed by ring-opening polymerization of cyclic precursors.