摘要
含有ONO给体原子的N-邻甲氧基苯甲酰基水杨酰肼配体与[VO(acac)2]在乙醇中反应得到钒(V)酰配合物VO[(C15H12N2O4)(OC2H5)].标题化合物晶体属三斜晶系,空间群P墿,晶胞参数:a=0.89411(5)nm,b=1.0063(2)nm,c=1.0392(2)nm,α=110.171(7)°,β=95.219(3)°,γ=93.822(2)°;V=0.8692(2)nm3,Z=2,R1=0.0513,wR=0.1532.研究结果表明:钒原子具有扭曲的四方锥配位构型,钒酰氧原子处在锥顶位置,配体的3个给体原子与溶剂分子形成锥底平面.
A tridentate dibasic Schiff base ligand with an ONO donor set reacts with in ethanol to form a monomeric five-coordinated oxovanadium (Ⅴ) complex of the type .The title complex VOcrystallizes in the triclinic system,space group Pī with a=0.894 11(5)nm,b=1.006 3(2)nm,c=1.039 2(2)nm,α=110.171(7)°,β=95.219(3)°,γ=93.822(2)°;V=0.869 2(2)nm3,Z=2,The crystal structure was determined by direct methods and refined to R1=0.051 3,wR=0.153 2 on the basis of 3 717 independent reflections.X-ray structure analysis reveals that the VⅤ ion is in a distorted square pyramidal enviroment with the oxo ligand occupying the apical position and the three donor atoms of the tridentate ligand occupying three of the positions in the basal plane,the fourth position of the plane is defined by solvent molecule.The cyclic voltammetry measurements shows that the title complex appears quasi-reversible redox behavior of a one-electron transformation.
出处
《分子科学学报》
CAS
CSCD
2003年第2期77-81,共5页
Journal of Molecular Science
基金
教育部高等学校骨干教师资助计划项目
福建省创新人才基金资助项目(2002J001)