1,3-二(苯并咪唑-2)镉配合物的合成和结构

摘要

The new cadmium (Ⅱ) complex [Cd(tbz)Cl2]·EtOH(1)(tbz = 1,3 -bis (benzimidazol-2-yl) propane)was synthesized and characterized by single-crystal X-ray diffraction. The crystal is of monoclinic, space group P21/cwitha = 0.96080(10), b = 1.30150(14),c = 1.62084(17) nm,β= 90.109(2)°, V = 2.0268(4)nm3, Z = 4, Mr= 503.70, Dc= 1.651 g/cm3, F(000) = 1 008,μ = 1.357 mm-1, thefinalR = 0.025 1and wR = 0. 064 8 for 3 549 observed reflections (Ⅰ＞2r(Ⅰ) ). The coordination geometry of cadmium atom is distorted tetrahedral, coordinated by two nitrogen atoms from one tbz ligand, and two Cl- cations..%合成了新的镉配合物[Cd(tbz)Cl2]·EtOH(1),并测定了其晶体结构(tbz=1,3-二(苯并咪唑-2).晶体属于单斜晶系,空间群P21/c,a=0.960 80(10),b=1.301 50(14),c=1.620 84(17)nm,β=90.109(2)°,V=2.026 8(4)nm3,Z=4,Mrr=503.70,Dc=1.651 g/cm3,F(000)=1 008,μ=1.357 mm-1,对于Ⅰ＞2σ(Ⅰ)的3 549个衍射点的最终R=0.0251,wR=0.064 8.镉原子与一个tbz配体的二个氮原子和二个氯离子配位,形成了扭曲四面体的配位环境.