...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Zeitschrift fur Naturforschung, B. A Journal of Chemical Sciences >Novel Dinucleating Ligand Systems Containing Two Adjacent Coordination compartments of the Potential Triamidoamine-Type-Nickel (II) and Cobalt (II) Coordination Chemistry
【24h】

Novel Dinucleating Ligand Systems Containing Two Adjacent Coordination compartments of the Potential Triamidoamine-Type-Nickel (II) and Cobalt (II) Coordination Chemistry

机译：包含两个潜在的三酰胺基型镍（II）和钴（II）配位化学的两个相邻配位区的新型成核配体系统

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The preparation of novel dinucleating pyrazolate ligands H_5L~3-H_5L~8 carrying chelating side arms with appending secondary amine functions is reported. Following different synthetic routes, either CH_2CF_3, C_6H_2F_3, or C_6F_5 moieties can be introduced as substituents at the terminal nitrogen atoms. These systems are reminiscent of two coupled coordination compartments of the potential triamidoamine-type. Crystallographic analyses of a series of bimetallic complexes of the CH_2CF_3-substituted ligand H_5L~4 with NiCl_2 and CoCl_2 reveal manifold coordination modes in the solid state, resulting from the facile detachment of a single or several N-donor sites from the metal centers. Coordination number sets {4/6} (in H_5L~4Co_2Cl_4) and {5/6} (in H_4L~4Ni_2Cl_3, H_4L~4Co_2Cl_3, H_5L~4Ni_2Cl_4) are thus observed. In the non-deprotonated H_5-L-type systems the remaining protons are found to be scavenged by a pyrazolate-N (in H_5L~4Ni_2Cl_4) or an amine function of a ligand side arm (in H_5L~4Co_2Cl_4).
机译：报道了带有螯合侧臂并具有仲胺功能的新型二核吡唑酸酯配体H_5L〜3-H_5L〜8的制备。按照不同的合成路线，可以在末端氮原子上引入CH_2CF_3，C_6H_2F_3或C_6F_5部分作为取代基。这些系统使人联想到潜在的三酰氨基胺型的两个耦合配位室。 CH_2CF_3取代的配体H_5L〜4与NiCl_2和CoCl_2的一系列双金属配合物的晶体学分析显示，固态的多价配位模式是由于单个或几个N供体位点从金属中心的容易分离引起的。因此观察到配位数集{4/6}（在H_5L〜4Co_2Cl_4中）和{5/6}（在H_4L〜4Ni_2Cl_3，H_4L〜4Co_2Cl_3，H_5L〜4Ni_2Cl_4中）。在非去质子化的H_5-L型体系中，发现其余的质子被吡唑酸酯-N（在H_5L〜4Ni_2Cl_4中）或配体侧臂的胺官能团（在H_5L〜4Co_2Cl_4中）清除。

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