戊唑醇钴(Ⅱ)配合物的热力学性质研究  

Thermochemical Properties of A New Co(Ⅱ) Complex of Tebuconazole

作　　者：李洁 裴晓燕 马海霞[2] LI Jie;PEI Xiaoyan;MA Haixia(College of Chemistry and Chemical Engineering,Xinyang Normal University,Xinyang 464000,China;School of Chemical Engineering,Northwest University,Xi’an 710069,China)

机构地区：[1]信阳师范学院化学化工学院,河南信阳464000 [2]西北大学化工学院,陕西西安710069

出　　处：《信阳师范学院学报（自然科学版）》2023年第2期239-242,共4页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(22003055)。

摘　　要：合成了一种钴(Ⅱ)配合物[CoL_(4)Cl_(2)],并研究了该类配合物的热化学性质。采用微量量热仪测定了其在温度283.15~353.15 K范围内的摩尔比热容(C_(p,m)),利用密度泛函理论(DFT)计算了其摩尔比热容,并计算了该实验温度范围下的热力学数据H_(T)-H_(298.15 K)和S_(T)-S_(298.15 K)。此外,采用DC08 Calvet微量热计在298.15 K下测定了[CoL_(4)Cl_(2)]在N,N-二甲基甲酰胺(DMF)中的溶解行为,结果表明该溶解是一个吸热过程,在298.15 K时,在DMF中的溶解焓为45.61±0.77 kJ/mol。A new Co(Ⅱ)coordination compound,namely,[CoL_(4)Cl_(2)]is synthesized and its thermochemical properties is characterized.The specific molar heat capacity(C_(p,m))of[CoL_(4)Cl_(2)]from 283.15 K to 353.15 K is determined by micro-calorimeter and calculated by density function theoretical(DFT)calculations.The theoretical thermodynamic properties of H_(T)-H_(298.15 K)and S_(T)-S_(298.15K)are also studied.Moreover,the thermochemical behavior of the dissolution of[CoL_(4)Cl_(2)]in N,N-dimethyl formamide(DMF)is measured using a DC08 Calvet microcalorimeter at 298.15 K.The results show that the dissolution is an endothermic process,and the enthalpy of dissolution in DMF is 45.61±0.77 kJ/mol at 298.15 K.

关 键 词：钴(Ⅱ)配合物 戊唑醇 晶体结构 摩尔比热容 溶解焓 

分 类 号：O69[理学—化学]