...
首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >A structural study of the iminodiacetate moiety conformation in n-(1-adamantyl)-iminodiacetate(2-) Copper(II) complexes
【24h】

A structural study of the iminodiacetate moiety conformation in n-(1-adamantyl)-iminodiacetate(2-) Copper(II) complexes

机译:n-(1-金刚烷基)-亚氨基二乙酸(2-)铜(II)配合物中亚氨基二乙酸酯部分构象的结构研究

获取原文
获取原文并翻译 | 示例
           

摘要

N,N-bis(carboxymethyl)-1-adamantylamine acid (H(2)BCAA) or N-(I-adamantyl)-iminodiacetic acid forms zwitterions that are intra-stabilized by a 'bifurcated' N+-H center dot center dot O(carboxyl)2 interaction. In the crystal, both half-protonated carboxyl groups of H2BCAA are involved in linear O-H center dot center dot center dot O intermolecular bridges of 2.46 A. In the studied BCAA-Cu-II derivatives, the iminodiacetate-moiety of the BCAA chelating ligand exhibits a mer-NO2 conformation in [Cu(BCAA)(H2O)(2)] (1) and [Cu(BCAA)(Him)](2) (2), but a AC-O-2+N(apical) conformation [Cu(BCAA)(bpy)(H2O)] center dot 3.5H(2)O (3) [Him = imidazole, bpy =2,2'bipyridine]. In clear contrast, dipyridylamine (dpya), as auxiliary ligand, seems to be unable to promote the fac-O-2+N(apical) conformation in BCAA, as reveal the structures of two new salts with the trinuclear cation [(dpya)(2)Cu-mu(2)-Cu(BCAA)(2)-Cu(dpya)(2)](2+) and the anions [Cu(BCAA)2](2-) (4) or NO3- (5), respectively.
机译:N,N-双(羧甲基)-1-金刚烷基胺酸(H(2)BCAA)或N-(I-金刚烷基)-亚氨基二乙酸形成两性离子,并通过``分叉的''N + -H中心点中心点进行内部稳定O(羧基)2相互作用。在晶体中,H2BCAA的两个半质子化的羧基都参与了2.46 A的线性OH中心点中心点中心点O的分子间桥。在研究的BCAA-Cu-II衍生物中,BCAA螯合配体的亚氨基二乙酸酯部分表现出[Cu(BCAA)(H2O)(2)](1)和[Cu(BCAA)(Him)](2)(2)中的mer-NO2构象,但AC-O-2 + N(顶端)构象[Cu(BCAA)(bpy)(H2O)]中心点3.5H(2)O(3)[Him =咪唑,bpy = 2,2'联吡啶]。与此形成鲜明对比的是,作为辅助配体的二吡啶胺(dpya)似乎无法促进BCAA中的fac-O-2 + N(apical)构象,因为它揭示了带有三核阳离子[(dpya)的两种新盐的结构。 (2)Cu-mu(2)-Cu(BCAA)(2)-Cu(dpya)(2)](2+)和阴离子[Cu(BCAA)2](2-)(4)或NO3- (5)分别。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号