TWO NEW CYANIDE-BRIDGED COMPLEXES, {[Cu(men)2][Ni(CN)4]}n and [Mn(bpy)2]4[Mo(CN)8]2·0.5MeOH·0.75H2O: SYNTHESES AND CRYSTAL STRUCTURES
X. Chen1, P. Yang2, S.-L. Ma3, S. Ren4, M.-Y. Tang5, Y. Yang6, Z.-J. Guo7, L.-Z. Liu8
1 Tianjin University of Commerce, mashulin@tjcu.edu.cn
2 Tianjin University of Commerce
3 Tianjin University of Commerce
4 Tianjin University of Commerce
5 Tianjin University of Commerce
6 Tianjin University of Commerce
7 Tianjin University of Commerce
8 Tianjin University of Commerce
Ключевые слова: cyanide, bimetallic complex, coordination polymer, hydrogen bond, 1D chain, 2D network
Страницы: 518-521
Аннотация
Two novel cyano-bridged complexes, {[Cu(men)2][Ni(CN)4]}n (1) (men = N,N′-dimethyl-ethylenediamine) and [Mn(bpy)2]4[Mo(CN)8]2·0.5MeOH·0.75H2O (2) (bpy = 2,2′-bipyridine) have been synthesized and structurally characterized by IR spectroscopy and X-ray crystallography. The complex 1 has one-dimensional zigzag chain structure in which the Ni atom is coordinated by four cyanide groups, and the Cu atom is surrounded by four nitrogen atoms of the two men ligands in equatorial plane and two nitrogen atoms of the bridging cyanide in axial positions; the Cu centre is in a distorted octahedral environment. Owing to weak interactions, complex 1 is self-assembled into two-dimensional network via N-H…N hydrogen bonds.
In 2, the basic structural unit is centrosymmetric and contains four Mn centers connected by two octacyanomolybdates via eight cyanide bridges. Each Mo atom is linked via four cyanide groups to four Mn, and the other four cyanide groups are terminal. From X-ray single crystal analysis (room temperature), 1 crystallizes in monoclinic space group P21/n with a =
= 6.7332(7), b = 13.9248(15), c = 9.0869(10) Å, β = 98.4030(10)°, V = 843.05(16) Å3, Z = 2;
2 crystallizes in monoclinic space group P21/n with a = 13.886(6), b = 24.116(11), c =
= 15.263(7) Å, β = 90.175(6)°, V = 5111(4) Å3, Z = 2.
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