1,3-二(苯并咪唑-2)镉配合物的合成和结构(英文)

Synthesis and crystal structure of cadmium complex with 1,3-bis(benzimidazol-2-yl)propane

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,Mr=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.

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/ c with a = 0.96080（10）, b = 1.30150（14）, c = 1.62084（17） nm,β = 90. 109（2）°, V = 2. 026 8（4） nm^3, Z = 4, M,= 503.70, Dc= 1.651 g/cm^3, F（000） = 1 008,μ = 1.357 mm^-1, the final R = 0.025 1 and wR = 0. 064 8 for 3 549 observed reflections （I 〉 2σ（I））. The coordination geometry of cadmium atom is distorted tetrahedral, coordinated by two nitrogen atoms from one tbz ligand, and two Cl^- cations.