N,N"-二(N-对羧基苯基胺甲酰甲基)-N,N',N"-三乙酸二乙三胺与锌配合物的合成和晶体结构  

Synthesis and Crystal Structure of Zinc Complex with N,N"-Bis(p-carboxyphenyl-aminocarbonylmethyl)-N,N',N"-trihydroxy-carbonylmethyl Diethylenetriamine

作　　者：刘迎春[1] 马淑兰[1] 张静[1] 朱文祥[1] 许妙琼[1] 

机构地区：[1]北京师范大学化学系,北京100875

出　　处：《化学学报》2005年第15期1397-1401,共5页Acta Chimica Sinica

基　　金：北京市自然科学基金(No.2022011)资助项目.

摘　　要：合成了锌与配体N,N"-二(N-对羧基苯基胺甲酰甲基)-N,N',N"-三乙酸二乙三胺的配合物ZnH3L·4H2O(H5L= C28H33N5O12),通过元素分析,IR,UV-vis和热重分析对配合物进行了表征,并测定了该配合物的晶体结构.晶体属三斜晶系,P (?)空间群,晶胞参数a=0.8442(2)nm,b=1.0837(3)nm,c=1.9082(6)nm,α=104.052(5)°,β=94.624(5)°,γ= 93.093(5)°,Z=2.结构由直接法解出,最终偏离因子R1=0.0547,wR2=0.1306.锌与配体的一个酰胺氧原子、两个亚胺氮原子和两个羧基氧原子配位,形成畸变的三角双锥构型.配合物分子间通过氢键连接形成三维网状结构.A zinc complex with ligand N,N＂-bis（p-carboxyphenyl-aminocarbonylmethyl）-N,N′,N＂-trihydroxy-carbonylmethyl diethylenetriamine, ZnH3L·4H2O （H5L=C28H33N5O12）, has been synthesized and characterized by elemental analysis, IR, UV and thermogravimetry. The crystal structure of the complex was determined by X-ray diffraction method. It belongs to triclinic system with P 1 space group and a=0.8442（2） nm, b= 1.0837（3） nm, c= 1.9082（6） nm, α= 104.052（5）°, β=94.624（5）°, γ=93.093（5）°, Z=2,R1 =0.0547, wR2 =0.1306. The structure was solved by direct methods. The Zn（Ⅱ） cation coordinates to one amide oxygen atom, two amino nitrogen atoms and two carboxy oxygen atoms of the ligand, forming a distorted trigonal bipyramid. The molecules of the complex are linked through hydrogen bonding to form three-dimensional network.

关 键 词：N N″-二(N-对羧基苯基胺甲酰甲基)-N N′ N″-三乙酸二乙三胺 锌配合物 合成 晶体结构 DTPA衍生物 

分 类 号：O627.23[理学—有机化学] O641.4[理学—化学]