...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Inorganic Chemistry Communications >First donor stabilized-phosphenium rhodium complexes
【24h】

First donor stabilized-phosphenium rhodium complexes

机译：首个供体稳定的rh铑配合物

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 coordination properties of a donor stabilized-phosphenium adduct have been examined in rhodium chemistry. The preparation as well as the characterization of the first examples of donor stabilized-phosphenium rhodium(I) complexes is reported in this paper. Indeed, mono- and di-cationic rhodium complexes were obtained in quantitative yield by the direct addition of this imidazolium P(III)-ligand to [RhCl(1,5-COD)]2 in CH2Cl2 solution with a 1:1 P/Rh ratio under argon and 2:1 P/Rh ratio under CO atmosphere, respectively. Crystal structure of the bis-cationic donor stabilized-phosphenium rhodium(I) complex has been obtained from an acetone/pentane mixture. Its molecular structure has revealed a particular arrangement in which the chloride atom is sandwiched between both imidazolium rings as a result of the electrostatic attractive interactions between the electron-deficient heterocarbene moieties and the electron rich halide atom. On the other hand, the basicity of N-donor-phosphenium adducts has been evaluated by measure of the CO stretching frequency in one rhodium complex, and was found halfway between the phosphites and the strong it-acceptor phosphines.
机译：供体稳定的phosph加合物的配位性质已在铑化学中进行了研究。本文报道了供体稳定的rh铑（I）配合物的第一个实例的制备和表征。实际上，通过将咪唑P（III）-配体直接添加到CH1Cl2溶液中的[RhCl（1,5-COD）] 2中并以1：1 P /的比例将其定量地获得了单阳离子和二阳离子铑配合物。氩气下的Rh比率和CO气氛下的2：1 P / Rh比率。双阳离子供体稳定化的铑铑（I）配合物的晶体结构已从丙酮/戊烷混合物中获得。它的分子结构揭示了一种特殊的排列方式，其中由于缺电子的异碳烯基团和富电子的卤化物原子之间的静电吸引相互作用，氯化物原子夹在两个咪唑环之间。另一方面，N-供体-en加合物的碱度已经通过测量一个铑配合物中的CO拉伸频率进行了评估，并且发现在亚磷酸酯和强i-受体膦之间。

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