Synthesis and Crystal Structure of a Distorted 2D (6,3) Layer Complex, [Cd(H2mbdpz)(N3)2]n (H2mbdpz = 4,4'-Methylenebis(3,5-dimethylpyrazole)) Containing both End-on and End-to-end Azide Bridges

被引:0
作者
崔广华 [1 ]
彭献 [1 ]
董桂英 [1 ]
李峰峰 [2 ]
机构
[1] College of Chemical Engineering and Biotechnology, Hebei Polytechnic University
[2] College of Light Industry, Hebei Polytechnic University
关键词
crystal structure; dipyrazole ligand; 2D (6; 3) network; cadmium(II) complex;
D O I
10.14102/j.cnki.0254-5861.2009.10.006
中图分类号
O621.13 [];
学科分类号
070303 ; 081704 ;
摘要
The complex [Cd(H2mbdpz)(N3)2]n 1 (H2mbdpz = 4,4’-methylenebis(3,5-dime-thylpyrazole)) has been hydrothermally synthesized and characterized by single-crystal X-ray diffraction analysis. It crystallizes in the monoclinic system, space groups C2/c with a = 22.154(5), b = 7.4835(15), c = 21.044(8), β = 115.51(3)o, V = 3148.7(17) 3, Z = 8, C11H16CdN10, Mr = 400.75, Dc = 1.691 g/cm3, μ = 1.401 mm-1, F(000) = 1599, T = 293(2) K, the final R = 0.0228 and wR = 0.0581 for 3604 observed reflections with I > 2σ(I). The structural determination revealed that the coordination environment of Cd(II) atom is a distorted octahedron consisting of two nitrogen donors of two H2mbdpz ligands and four nitrogen donors from four azide ligands. The azide moieties act as bridges in two modes: end-on (μ1,1-) and end-to-end (μ1,3-), and H2mbdpz also serves as a bridge with a bis-monodentate coordination. Both bridging ligands link the Cd(II) atoms to form a distorted two-dimensional (6,3) layer.
引用
收藏
页码:1265 / 1269
页数:5
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