Crystal structure of [NiHg(SCN)4(CH3OH)2]n

Abstract

The title compound,catena-poly[[bis(methanol-κO)nickel(II)]-di-μ-thiocyanato-κ4N:S-mercurate(II)-di-μ-thiocyanato-κ4N:S], was obtained from a gel-growth method using tetramethoxysilane as gelling agent. The crystal structure is composed of rather regular HgS4tetrahedra (point group symmetry .2.) andtrans-NiN4O2octahedra (point group symmetry 2..) that are linked through thiocyanato bridges into a three-dimensional framework. The methanol molecules coordinateviathe O atom to the Ni2+cations and point into the voids of this arrangement while a weak O—H...S hydrogen bond to an adjacent S atom stabilizes it.