...
首页> 外文期刊>Polyhedron: The International Journal for Inorganic and Organometallic Chemistry >Amidinato- and triazenido-bridged binuclear complexes of palladium and platinum
【24h】

Amidinato- and triazenido-bridged binuclear complexes of palladium and platinum

机译:钯和铂的酰胺基和三氮烯桥联双核络合物

获取原文
获取原文并翻译 | 示例
           

摘要

The reaction of [M2Cl2(mu-Cl)(2)(PR3)(2)] (M=Pd or Pt; PR3=PEt3, PBu3, PMe2Ph, PMePh2) with lithium amidinate or sodium triazenide gave binuclear complexes containing amidinato- or triazenido-bridges, [M2Cl2(mu-ArNENAr)(2)(PR3)(2)] (E=CH, CMe or N). These complexes were characterized by elemental analysis and NMR (H-1, P-31 or Pt-195) data. The structures of two complexes, [(PdCl2)-Cl-2(mu-PhNC(Me)NPh)(2)(PMe2Ph)(2)] (10) and [Pt2Cl2(mu-PhNNNPh)(2)(PEt3)(2)] (11) were established by single crystal X-ray structural analyses. The Pt-195 NMR data Show coupling between two metal centers in the cis triazenido-bridged complex. The corresponding amidinate bridged complex does not show coupling. The role of the bridging ligand in mediating interaction between the metal centers is probed through Extended Huckel Theory (EHT) calculations. It is suggested that M-M interactions are primarily affected by the bridging ligands. (C) 1998 Elsevier Science Ltd. All rights reserved. [References: 47]
机译:[M2Cl2(mu-Cl)(2)(PR3)(2)](M = Pd或Pt; PR3 = PEt3,PBu3,PMe2Ph,PMePh2)与a胺酸锂或三叠氮化钠反应,得到含a基或or基的双核络合物三氮烯桥,[M2Cl2(mu-ArNENAr)(2)(PR3)(2)](E = CH,CMe或N)。这些配合物通过元素分析和NMR(H-1,P-31或Pt-195)数据进行表征。 [(PdCl2)-Cl-2(mu-PhNC(Me)NPh)(2)(PMe2Ph)(2)](10)和[Pt2Cl2(mu-PhNNNPh)(2)(PEt3) (2)](11)通过单晶X射线结构分析建立。 Pt-195 NMR数据显示,顺式三氮烯桥连络合物中两个金属中心之间的偶联。相应的a基桥接复合物不显示偶联。通过扩展Huckel理论(EHT)计算探讨了桥接配体在介导金属中心之间相互作用中的作用。建议M-M相互作用主要受桥连配体影响。 (C)1998 Elsevier ScienceLtd。保留所有权利。 [参考:47]

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