Isocyanide complexes with Pt2S and Pt2CS cores. Crystal structure of µ-sulphido-bis[bis(2,4,6-tri-t-butylphenyl isocyanide)platinum]

Abstract

The triplatinum compound [Pt₃(2,4,6-Bu^t₃C₆H₂NC)₆](1) reacts with sulphur or carbon disulphide to give diplatinum complexes [Pt₂(2,4,6-Bu^t₃C₆H₂NC)₄S](2) and [Pt₂(2,4,6-Bu^t₃C₆H₂NC)₄(CS₂)](3). The structure of (2) has been established by a single-crystal X-ray analysis; it has a triangular Pt₂S core containing terminal Isocyanide groups. Crystals are monoclinic, space group P2₁/a, with Z= 4 in a unit cell of dimensions a= 26.988(7), b= 22.704(11), c= 18.211(5)Å, and β= 130.01(2)°.