2,2′-联嘧啶和二硫烯双核钴混配配合物的合成和晶体结构(英文)  

Synthesis and Crystal Structure of a Dicuclear Cobalt Complex Consisting of 2,2′-Bipyrimidyl and Dithiolene

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作  者:王冬妮[1] 许多慧[2] 丁刘镠[1] 陈琪[1] 芦昌盛[1] 

机构地区:[1]南京大学化学化工学院配位化学国家重点实验室 [2]南京工业大学理学院

出  处:《无机化学学报》2013年第8期1724-1732,共9页Chinese Journal of Inorganic Chemistry

基  金:grateful for the financial support of the National Basic Research program of China(2010CB923402);National Nature Science Foundation of China(NSFC:21021062 and 91122031);Jiangsu Science & Technology Department(BK2011550);the Center of Analysis and Determining of Nanjing University~~

摘  要:以2,2′-联嘧啶(bpy)和马来二腈基阴离子(mnt)为配体合成了一个双核钴混配配合物(C4H9)4N2(Co(mnt)2)2(bpy)(1)(C56H78Co2N14S8)((C4H9)4N=tetrabutylammonium,mnt=maleonitriledithiolate and bpy=2,2′-bipyrimidyl),并用X-射线单晶衍射方法测定了该配合物的晶体结构:配合物属单斜晶系,P21/c空间群,a=2.368 2(2)nm,b=1.582 11(13)nm,c=1.873 85(16)nm,β=105.834(2)。此外,还对该配合物进行了热重(TGA)、紫外可见光谱(UV)、红外光谱(IR)、X-射线光电子能谱(XPS)、变温磁化率和电化学循环伏安(CVs)等性质的研究;数据表明相邻的金属钴离子之间存在反铁磁相互作用。A new dinuclear cobalt complex with mixed ligands, (C4Hg)4N2(Co(mnt)2)z(bpy) (1) (C56HTsCoiN,4Ss)((C4Hg)4N= tetrabutylammonium, mnt =maleonitriledithiolate and bpy =2,2'-bipyrimidyl) has been synthesized and characterized by single-crystal X-ray structure determination. Complex 1 is of monoclinic system, space group P21/c, with a=2.368 2(2) nm, b=1.582 11(13) nm, c=1.873 85(16) nm,β=105.834(2)°. Each cobalt center was coordinated with two rant groups and bridged by 2,2'-bipyrimidyl ligand in complex 1. It was then investigated by thermogravimetric analysis (TGA), UV, IR, X-ray photoelectron spectroscopy (XPS), and cyclic voltammograms (CVs). Magnetic susceptibilities measurements of complex 1 revealed weak antiferromagnetic exchange interactions between the adjacent Co(Ⅱ) ions. CCDC: 919857.

关 键 词:混合配体 双核钴配合物 晶体结构 

分 类 号:O614.812[理学—无机化学]

 

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