锌(Ⅱ)离子为中心的三元配合物的水热合成及晶体结构

Hydrothermal Synthesis and Crystal Structure of the ZnⅡ Coordination Compound

通过水热反应,合成了一种2-(4-吡啶基)-苯并咪唑、对硝基苯甲酸及锌(Ⅱ)三元配合物.并对该配合物的结构进行了测定,发现该配合物属于三斜晶系,P-1点群,晶胞参数为a=0.7902(8)nm,b=1.3277(13)nm,c=1.7837(17)nm;α=99.953°(18),β=94.666°(16),γ=90.354°(16).每个锌离子周围有两个对硝基苯甲酸及两个2-(4-吡啶基)-苯并咪唑;其中两个对硝基苯甲酸分别以一个羧基氧原子,两个2-(4-吡啶基)-苯并咪唑分别以吡啶环上的氮原子和锌离子中配位,形成四面体结构.

Through the hydrothermal synthesis techniques, a zinc（ Ⅱ） compound was synthesized based on 2-（Pyridin-4-yl）-1H-Benzo[d]imidazole and p-nitrobenzoic acid. And the structure of the complexes were determined by X-ray single crystal diffraction. The crystal belongs to Triclinic system and P-1 space group. The parameters of the crystal cell for the compound are a=0.7902（8）nm, b=1.3277（13）nm, c=1.7837（17）nm. α=99.953 °（18）, β=94.666°（16）, γ=90.354°（16）. The zinc（Ⅱ） is coordinated with two nitrogen atoms of two 2-（Pyridin-4-yl）-1H-Benzo[d]imidazole molecule, and two oxygen atoms from two p-nitrobenzoic acid molecule, generating a distorted Tetrahedron coordination geometry.