• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chemistry: A European journal >Reactivity of Lewis basic platinum complexes towards fluoroboranes
【24h】

Reactivity of Lewis basic platinum complexes towards fluoroboranes

机译：Lewis碱性铂配合物对氟硼烷的反应性

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

We herein report detailed investigations into the interaction of Lewis acidic fluoroboranes, for example BF_2Pf (Pf=perfluorophenyl) and BF_2Ar~F (Ar~F=3,5-bis(trifluoromethyl)phenyl), with Lewis basic platinum complexes such as [Pt(PEt_3)_3] and [Pt(PCy_3)_2] (Cy=cyclohexyl). Two presumed Lewis adducts could be identified in solution and corresponding secondary products of these Lewis adducts were characterized in the solid state. Furthermore, the concept of frustrated Lewis pairs (FLP) was applied to the activation of ethene in the system [Pt(BPf_3)(CH_2CH_2)(dcpp)] (dcpp=1,3-bis(dicyclohexylphosphino)propane; Pf=perfluorophenyl). Finally, DFT calculations were performed to determine the interaction between the platinum-centered Lewis bases and the boron-centered Lewis acids. Additionally, several possible mechanisms for the oxidative addition of the boranes BF _3, BCl_3, and BF_2Ar~F to the model complex [Pt(PMe_3)_2] are presented. Still elusive: Several attempts to yield the elusive, unsupported Lewis adduct between a Lewis basic transition-metal complex and a Lewis acidic borane are presented, including NMR spectroscopic characterization at low temperatures, isolation of secondary products and detailed DFT calculations (see figure).
机译：我们在此报告了有关路易斯酸性氟硼烷（例如BF_2Pf（Pf =全氟苯基）和BF_2Ar〜F（Ar〜F = 3,5-双（三氟甲基）苯基））与路易斯碱性铂络合物（例如[Pt] （PEt_3）_3]和[Pt（PCy_3）_2]（Cy =环己基）。可以在溶液中鉴定出两种假定的路易斯加合物，并以固态表征了这些路易斯加合物的相应副产物。此外，将沮丧的路易斯对（FLP）概念应用于系统[Pt（BPf_3）（CH_2CH_2）（dcpp）]（dcpp = 1,3-双（二环己基膦基）丙烷; Pf =全氟苯基）中的乙烯活化。 。最后，进行DFT计算以确定以铂为中心的路易斯碱与以硼为中心的路易斯酸之间的相互作用。此外，提出了将硼酸BF _3，BCl_3和BF_2Ar_F氧化添加到模型配合物[Pt（PMe_3）_2]的几种可能机理。仍然难以捉摸：提出了几种尝试在路易斯碱性过渡金属配合物和路易斯酸性硼烷之间产生难以捉摸的，未负载的路易斯加合物的方法，包括低温下的NMR光谱表征，副产物的分离和详细的DFT计算（见图）。

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