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基于构筑单元K[Cr(bpb)(CN)2]和[Cu(cyclam)](Cl O4)合成了一个氰根桥联的CrⅢ-CuⅡ一维化合物{[Cu(cyclam)][Cr(bpb)(CN)2]2·2H2O}n[cyclam=1,4,8,11-四氮杂环十四烷;bpb2-=1,2-二(2-吡啶甲酰胺基)苯](1),并通过X-衍射单晶分析表征其结构特征。结果表明:化合物1是由氰根桥联的2种不同金属组成的聚合物,其结构属于三斜晶系,P1空间群,a=0.9667 3(19)nm,b=1.345 1(3)nm,c=1.382 0(3)nm,α=77.12(3)°,β=76.93(3)°,γ=82.02(3)°,V=1.699 1(6)nm3,Z=2,Dc=1.567 g·cm-3,μ=1.086 mm-1,F(000)=828,R1=0.0413,w R2=0.1200。磁性研究表明:配合物1中的CrⅢ离子和CuⅡ离子之间存在弱的铁磁耦合作用。
A cyanide-bridged CrⅢ-CuⅡ one-dimensional compound {[Cu (cyclam)] [Cr (bpb) was synthesized based on the building blocks K [Cr (bpb) (CN) 2] and [Cu (cyclam) (CN) 2] 2 · 2H2O} n [cyclam = 1,4,8,11-tetraazacyclotetradecane; bpb2- = 1,2-bis (2- picolinamido) benzene] ), And its structural characteristics were characterized by X-ray diffraction. The results show that compound 1 is a polymer composed of two different metals bridged by cyanide and belongs to the triclinic system with a = 0.9667 3 (19) nm and b = 1.345 1 (3) nm α = 77.12 (3) °, β = 76.93 (3) °, γ = 82.02 (3) °, V = 1.699 1 (6) nm3, Z = 2 and Dc = 1.567 g · cm-3, μ = 1.086 mm-1, F (000) = 828, R1 = 0.0413, w R2 = 0.1200. Magnetic studies show that there is a weak ferromagnetic coupling between Cr Ⅲ ions and Cu Ⅱ ions in complex 1.