Crystal structure of a novel Hg(II) complex, [Hg(tri-2-furylphosphine)(2)(tri-2 furylphosphinoxide) (3) ] [ClO4](2).

The Hg(II) complex [Hg(TFP)2(OTFP)(3)][ClO4](2) with TFP=tri-2-furyl-phosphine and OTFP=tri-2-furylphosphinoxide has been prepared and characterised. It crystallises in the hexagonal P6(3)/M space group with Z = 2, a = 13.308(3), c = 21.092 (4) angstrom, V = 3235(1) angstrom(3). The structure of the complex cation consists of independent molecules with Hg pentacoordinated in exact trigonal bipyramidal geometry.