Abstract
Abstract The new copper(I) coordination polymer poly[tri-μ2-cyano-C,N)-bis(μ2-2,3-dimethyl-pyrazine- N,N)] tricopper(I) (I) was prepared by the reaction of copper(I) cyanide with 2,3-dimethylpyrazine in acetonitrile. In the crystal structure of Ia novel CuCN substructure is found which is connected by the dimethylpyrazine ligands into a three-dimensional coordination network. The thermal properties of Iwere investigated using simultaneous differential thermoanalysis (DTA), thermogravimetry (TG) and mass spectrometry (MS) as well as temperature resolved X-ray powder diffraction. On heating, compound Ilooses a part of the dimethylpyrazine ligands in an endothermic reaction to form the known ligand poor compound (CuCN)2-(2,3-dimethylpyrazine) IIas an intermediate which decomposes to CuCN on further heating.
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