链状铜配合物[Cu(bipy)_2Cl]_2Cl_2·nH_2O(bipy=2,2′-联吡啶)水热合成

Chain-like copper coordination [Cu(bipy)_2Cl]_2Cl_2·nH_2O hydrothermal synthesis and properties

利用水热合成方法制备了一种新颖的由π-π堆积形成的链状二价铜配合物[Cu(bipy)2Cl]2Cl2·nH2O(bipy=2,2'-联吡啶),并用单晶衍射仪测定了其晶体结构,在2K～300K之间测定其磁化率.结果表明:该化合物为单斜晶系,P2/c空间群,a=1.2328(3)nm,b=1.4781(3)nm,c=1.4311(3)nm,α=90°,β=108.51(3)°,γ=90°,V=2.4730(9)nm3;8K～298K之间标题化合物呈现明显的铁磁性耦合相互作用,在2K～8K范围内却呈现出反铁磁性相互作用的特征.元素分析及红外光谱进一步佐证了化合物的结构.

<Abstrcat>In this paper, a novel copper coordination [Cu(bipy)2Cl]2Cl2·nH2O containing π-π stacking interactions was synthesized by hydrothermal method.The crystal parameters of the compound are as follows: monoclinic, P 2/c space group, a=1.232 8(3)nm, b=1.478 1(3)nm,c=1.431 1(3)nm,α=90°,β=108.51(3)°, γ=90°, V=2.473 0(9) nm3.Elemental analysis and IR spectra give the further confirmation for title compound.In addition, the magnetic spectra from 2K to 300K indicate that there exist ferrointeractions above 8K and anti-ferrointeractions below 8K.