Co-ordination chemistry of 1,1′-bis(diphenylthiophosphoryl)ferrocene (dptpf) towards silver(I).: Crystal structure of the polymeric complex[Ag2(μ-dptpf){(SPPh2)2CH2}2]n[ClO4]2n

The ligand 1,1'-bis(diphenylthiophosphoryl)ferrocene, dptpf, reacted with various silver complexes to afford two-, three-or four-co-ordinate species. Thus the reaction of dptpf with [Ag(OClO3)(PPh3)] in 1 : 1 or 1 :2 molar ratio gave the three-co-ordinate [Ag(dptpf)(PPh3)]ClO4 or the linear [Ag-2(dptpf)(PPh3)(2)][ClO4](2) derivatives Similarly, the treatment of dptpf with AgClO4 in 2: 1 or 1 : 1 molar ratio afforded the homoleptic compounds [Ag(dptpf)(2)]ClO4 or [Ag(dptpf)]ClO4; in the latter dptpf acts as a trans-chelating ligand. The complex [Ag(dptpf)]ClO4 can react further with bidentate ligands such as 2,2'-bipyridine (bipy) or bis(diphenylthiophosphoryl)methane, (SPPh2)(2)CH2, leading to the four-co-ordinate [Ag(dptpf)(bipy)]ClO4 or the four-co-ordinate polymeric species [Ag-2(mu-dptpf){(SPPh2)(2)CH2}(2)](n)[ClO4](2n) which was characterised by X-ray diffraction.