含有螯合或桥联双（N-杂环卡宾）配体的有机铂(II)配合物：通过空气固定 CO2 形成铂(II)碳酸盐配合物。

Organoplatinum(II) complexes containing chelating or bridging bis(N-heterocyclic carbene) ligands: formation of a platinum(II) carbonate complex by aerial CO2 fixation.

机构信息

Chemistry Department, Sharif University of Technology, PO Box 11155-3516, Tehran, Iran.

出版信息

Dalton Trans. 2011 Oct 7;40(37):9362-5. doi: 10.1039/c1dt10736d. Epub 2011 Jun 9.

Abstract

The preparation of two new bis(N-heterocyclic carbene) platinum(II) complexes, in which NHC rings are joined by a CH(2) linker group, is described. While, the chelate complex [PtMe(2)(bis-NHC1)], 1, was formed with large tert-butyl wingtips, the iso-propyl N-substituent analogue favors formation of the cluster complex Pt(2)Me(4)(μ-SMe(2))(μ-bis-NHC2)(μ-Ag(2)Br(2)), 2, in which two binuclear platinum(II) complexes are linked together by an Ag(2)Br(2) unit. The chelating platinum complex 1 undergoes aerial CO(2) fixation and forms platinum(II) carbonate complex [Pt(CO(3))(bis-NHC1)], 3.

摘要

描述了两种新型双（N-杂环卡宾）铂（II）配合物的制备，其中 NHC 环由 CH(2)连接基团连接。当螯合配合物[PtMe(2)(bis-NHC1)]，1，形成大的叔丁基翼尖时，异丙基 N-取代类似物有利于形成簇状配合物Pt(2)Me(4)(μ-SMe(2))(μ-bis-NHC2)(μ-Ag(2)Br(2))，2，其中两个双核铂（II）配合物通过 Ag(2)Br(2)单元连接在一起。螯合铂配合物 1 经历空气 CO(2)固定并形成铂（II）碳酸盐配合物[Pt(CO(3))(bis-NHC1)]，3。