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化学学报
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化学学报 ›› 2005, Vol. 63 ›› Issue (15): 1397-1401. 上一篇    下一篇

研究论文

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

刘迎春，马淑兰，张静，朱文祥*，许妙琼   

  1. (北京师范大学化学系 北京 100875)
  • 投稿日期:2004-11-19 修回日期:2005-04-11 发布日期:2010-12-10
  • 通讯作者: 朱文祥

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

LIU Ying-Chun, MA Shu-Lan, ZHANG Jing, ZHU Wen-Xiang*, XU Miao-Qiong   

  1. (Department of Chemistry, Beijing Normal University, Beijing 100875)
  • Received:2004-11-19 Revised:2005-04-11 Published:2010-12-10
  • Contact: ZHU Wen-Xiang

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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, P1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.

关键词: DTPA衍生物, 锌配合物, 晶体结构

A zinc complex with ligand N,N''-bis(p-carboxyphenylaminocarbonylmethyl)-N,N',N''-trihy- droxycarbonylmethyl 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 P1 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.

Key words: DTPA derivative, Zn(II) complex, crystal structure