Studies of Some Cadmium(II) and Mercury(II) Complexes with Dicyclohexylphosphino- N-phenylthioformamide, LH: Crystal and Molecular Structures of [CdI2(LH)]2, ([HgCl2(LH)]2.CH2Cl2) and HgCl2(LH)2

Abstract

The crystal and molecular structures of the title compounds, [CdI2(LH)]2, (1). [HgCl2(LH)]2.CH2Cl2 (2), and HgCl2(LH)2 (3) [where LH = dicyclohexylphosphino-N-phenyl- thioformamide,* (c-C6H11)2PC(S)N(H)Ph] have been determined by single-crystal X-ray diffraction techniques. Crystals of (1) are monoclinic, space group P21/n, a 13•051(2), b 10•183(1), c 18•106(1) Å and ß 101-55(8)° with Z 2; R and Rw were 0•047 and 0•044 respectively for 2320 unique, observed reflections. The unit cell contains two equivalent centrosymmetric, halogen-bridged cadmium dimers. Crystals of (2) are triclinic, space group P 1, with a 10•668(4), b 14•978(3), c 16•838(4) A, and a 111•80(2), ß 101•03(2),? 92•06(2)° wit..