上海大学学报(自然科学版) ›› 2018, Vol. 24 ›› Issue (2): 265-271.doi: 10.12066/j.issn.1007-2861.1776

• 研究论文 • 上一篇    下一篇

一种亚氨基二乙酸衍生物的多核铜配合物的固液性质

梁绮娴, 宫腾, 赵永梅(), 朱守荣   

  1. 上海大学 理学院, 上海 200444
  • 收稿日期:2016-04-22 出版日期:2018-04-30 发布日期:2018-05-07
  • 通讯作者: 赵永梅 E-mail:zhaoym86@163.com

Solution and solid state properties of copper complex with aiminodiacetic derivative

LIANG Qixian, GONG Teng, ZHAO Yongmei(), ZHU Shourong   

  1. College of Sciences, Shanghai University, Shanghai 200444, China
  • Received:2016-04-22 Online:2018-04-30 Published:2018-05-07
  • Contact: ZHAO Yongmei E-mail:zhaoym86@163.com

摘要:

利用芳香柔性多元酸 N,N,N',N'-对苯二甲基二胺四乙酸 (H$_{4}$L) 与 Cu(NO$_{3})_{2}$ 反应构筑了一种多核铜配合物. 对该配合物的单晶进行了 X-射线晶体结构分析, 表明该配合物属于正交晶系, 空间群为 Pmn21. 该配合物呈现出了空间三维框架结构, 其中长方形孔道大小为 1.105 6 nm$\times $0.696 4 nm. 电喷雾质谱 (electro spray ionization-mass spectrometry, ESI-MS) 及电位滴定结果显示, 该多核铜配合物在溶液中可以双核铜单体配离子的形式存在. 对该多核铜配合物的固体及溶液配位行为的研究可为该类物质在 磁性材料、催化及金属酶的结构及功能模拟方面提 供理论依据.

关键词: 铜配合物, 多核配合物, 晶体结构, 亚氨基二乙酸衍生物

Abstract:

Reaction of the N,N,N',N'-p-xylylenediamine tetracetic acid (H$_4$L) with Cu(NO$_3$)$_2$ leads to the formation of a new polynuclear copper complex. Crystal structure of the polynuclear copper complex has been determined. This polynuclear copper complex belongs to the orthorhombic space group Pmn21, and exhibits a novel 3D structure. Rectangular channels with a dimension of 1.105 6 nm$\times$0.696 4 nm, based on the distances of Cu ions, are found in this structure. Additionally, the results of electro spray ionization-mass spectrometry (ESI-MS) spectra and potentiometric measurements show that the polynuclear copper complex exists as a dinuclear species in the solution. The results may provide theoretical basis to potential applications of the polynuclear copper complex in magnetism, catalysis and structural and functional models of metalloenzymes.

Key words: copper complex, polynuclear complex, crystal structure, iminodiacetic derivative

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