Low-dimensional compounds containing cyano groups. XVIII. Two-dimensional network made of [Cu(tmen)]~(2+) moieties (tmen = tetramethylethylenediamine) connected by [Pt(CN)_4]~(2-) anions with three different bridging cyano groups

摘要

The polymeric complex, {[Cu(tmen)][Pt(CN)4]}_n(tmen = tetramethylethylenediamine) has been synthesized and characterized by elemental analysis, infrared spectroscopy, single-crystal structure analysis and by measurement of magnetic properties. Four v(C ident to N) absorption bands have been recorded in the infrared spectrum of this compound, what corresponds with four different types of cyano groups in the structure. Crystal structure revealed that one cyano group is terminal whereas three crystallo-graphically different cyano groups of [Pt(CN)_4]~(2-) anions bridge Pt(II) and Cu(II) atoms to form a two-dimensional structure with a weak antiferromagnetic exchange coupling.