Abstract
The complex [CdI2(4-CNPy)2] (I) was obtained by a reaction of CdI2 with 4-cyanopyridine (4-CNPy, C6H4N2) and structurally characterized (CIF file CCDC no. 983377). The crystals of complex I are monoclinic, space group C2, a = 24.698(5) A, b = 4.127(1) A, c = 7.597(2) A, β = 96.05(1)°, V = 770.0(3) A3, ρcalcd = 2.477 g/cm3, Z = 2. In structure I, iodine atoms serve to unite complex molecules into the polymer chains [CdI2(4-CNPy)2]∞ along the direction [010]. The Cd(1) atom lying on a twofold axis has a slightly distorted octahedral environment made up of four bridging iodine atoms and two nitrogen atoms of two ligands 4-CNPy (Cd-Iav, 2.947(2) and Cd-N(1), 2.410(6) A). Within each chain, cadmium atoms are spaced apart at 4.13 A. Complex I exhibits photoluminescence.
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