一维链状化合物[Cu(C_(10)N_2H_8)_2(H_2O)]_2{[Cu(C_(10)N_2H_8)][Cr(OH)_6Mo_6O_(18)]_2}·10H_2O的合成与晶体结构

Synthesis and crystal structure of 1D chain like compound [Cu(C_(10)N_2H_8)_2(H_2O)]_2{ [Cu(C_(10)N_2H_8)] [Cr(OH)_6Mo_6O_(18)]_2 } ·10H_2O

在常规条件下,合成了基于Anderson结构多阴离子[Cr(OH)6Mo6O18]3-的一维链状结构化合物[Cu(C10N2H8)2(H2O)]2{[Cu(C10N2H8)][Cr(OH)6Mo6O18]2}.10H2O.通过元素分析、红外光谱和X射线单晶衍射对合成的化合物进行了表征.结果表明:该化合物属于单斜晶系,P21/n空间群;晶胞参数为a=1.4569(2)nm,b=3.4591(5)nm,c=1.5088(2)nm,α=90°,β=111.453(2)°,γ=90°,V=7.0771(18)nm3,Z=4,R1=0.0743,ωR2=0.1916.该化合物是一个一维链状化合物,由交替连接的2,2′-联吡啶铜的配合物和多阴离子[Cr(OH)6Mo6O18]3-组成.相邻链间通过吡啶配体的π-π相互作用,进一步形成了三维结构.

A 1D chain-like compound [Cu（C10N2H8）2（H2O）]2{[Cu（C10N2H8）] [Cr（OH）6Mo6O18]2 } ·10H2O based on Anderson-type polyoxoanion [Cr（OH）6Mo6O18]3-has been synthesized under conventional conditions and characterized by elemental analysis,IR and single crystal X-ray diffraction analysis.X-ray diffraction result reveals that the compound crystallizes in the monoclinic,space group P21/n with a = 1.456 9（2） nm,b = 3.459 1（5） nm,c = 1.508 8（2） nm,α= 90°,β= 111.453（2）°,γ= 90°,V = 7.077 1（18） nm3,Z = 4,R1 = 0.074 3,ωR2 = 0.191 6.Crystal structure analysis indicates that the compound is a 1D chain-like compound,connected by alternating 2,2＇-bipyridine copper complexes and the anion [Cr （OH） 6Mo6O18] 3-unit.In addition,pyridine ligands from adjacent chains through π-π interaction result in the formation of the 3D structure further.