Synthesis, Crystal Structure and Thermochemical Properties of a One-Dimensional Chain Complex [Cd（succ）PIP]n

• Published in: Chinese journal of chemistry Vol. 30; no. 4; pp. 809 - 814
• Main Author: 李霞 赵文杰 刘飞 谭金婷 冯星 卢颖莉 杨旭武
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 01.04.2012; WILEY‐VCH Verlag; Wiley Subscription Services, Inc
• Subjects: 1,2‐phenyl‐imidazo[4,5‐f]1,10‐phenanthrolin cadmium(II) complex; 10-phenanthrolin cadmium(II) complex; 2-phenyl-imidazo; 5-f]1; Combustion; crystal structure; Crystallography; Enthalpy; enthalpy of combustion; intelligent micro-rotating-bomb calorimeter; TG-DTG; 一维链; 合成; 复合物; 晶体结构; 标准摩尔生成焓; 热化学性质; 转动弹热量计
• ISSN: 1001-604X; 1614-7065
• DOI: 10.1002/cjoc.201100335

A new complex, [Cd（succ）PIP], （PIP=2-phenyl-imidazo[4,5-J]l,10-phenanthroline, H2-succ=succinate）, was synthesized and characterized by X-ray crystallography, elemental analysis, and TG-DTG. The results show that the complex crystallizes in an orthorhombic space group Pcca; a=14.065（2） A, b=9.901（8） A, c=28.933（2） A and Z=8. The structure of the complex is one-dimensional chain [Cd（succ）PIP],, and each Cd2＋ is five-coordinated by two chelating nitrogen atoms from one PIP ligand, three oxygen atoms from three different succ dianionic ligands to form a distorted trigonal-bipyramida geometry. The constant-volume combustion energy of the complex, AoU, was determined by an intelligent micro-rotating-bomb calorimeter （IMRBC-type I） at 298.15 K. Then the standard mo- lar enthalpy of combustion, AcHm, and the standard molar enthalpy of formation, △fHm have been calculated.