| 溶剂对三(苯并咪唑-2-甲基)胺和间苯二胺四乙酸的铜配合物晶体结构的影响 |
| Two Solvent-Controlled Copper(Ⅱ) Complexes Constructed from Tris[(benzimidazol-2-yl)methyl]amine and m-Phenylenediaminetetraacetic Acid |
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| 摘要: 本文利用三(苯并咪唑-2-甲基)胺和间苯二胺四乙酸为配体与硝酸铜在CH3COCH3/CH3OH/H2O混合溶液中反应得到配合物[Cu(ntb)(H2mpda)]·0.5CH3COCH3·2H2O (1),在DMF/CH3OH/H2O混合溶液中反应得到配合物[Cu(ntb)(H2mpda)]·DMF·CH3OH·2H2O (2)(ntb=三(苯并咪唑-2-甲基)胺, H4mpda=间苯二胺四乙酸)。2个配合物的中心的铜离子分别与1个ntb配体的4个氮原子和1个H2mpda的氧原子配位形成三角双锥的配位构型。受溶剂的影响,配合物中配体的相对位置和构象有较大的区别,配合物2的配位构型更加扭曲。两个配合物均通过氢键连接形成不同的复杂三维网络。 |
| 关键词: 铜配合物 对三(苯并咪唑-2-甲基)胺 间苯二胺四乙酸 溶剂调控 |
| 基金项目: 辽宁省自然科学基金(No.201202093);辽宁省教育厅创新团队计划(No.LT2012001)及辽宁大学211计划创新人才培养项目资助项目。 |
| Abstract: The reactions of tris[(benzimidazol-2-yl)methyl]amine (ntb) and 1,3-phenylenedinitrilotetraacetic acid (H4mpda) with copper nitrate can produce complex 1 from CH3COCH3/CH3OH/H2O and complex 2 from DMF/CH3OH/H2O. Complexes with the formula of[Cu(ntb)(H2mpda)]·0.5CH3COCH3·2H2O (1) and[Cu(ntb)(H2mpda)]·DMF·CH3OH·2H2O (2) both have[Cu(ntb)(H2mpda)] structural units, in which Cu(Ⅱ) centers always have a five-coordination number bound to one ntb ligand and one H2mpda anion. All these complexes possess trigonal bipyramidal coordination geometry. However, metal ions show remarkable differences in structures due to the effects of solvents. Comparing to complex 1, complex 2 possesses more distorted coordination geometry. The positions of ntb and H2mpda ligands in 1 and 2 are very different. The mononuclear coordination units are extended by hydrogen-bonding into different three dimensional networks. CCDC: 893363, 1; 893364, 2. |
| Keywords: copper complex tris[(benzimidazol-2-yl)methyl]amine 1,3-phenylenedinitrilotetraacetic acid solvent-dependence |
| 投稿时间：2012-11-15 修订日期：2013-03-19 |
| 摘要点击次数: 1908 |
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| 葛春华,张蕊,王丽霞,张向东,王瑛琦.溶剂对三(苯并咪唑-2-甲基)胺和间苯二胺四乙酸的铜配合物晶体结构的影响[J].无机化学学报,2013,29(9):1993-1998. |
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