...
首页> 外文期刊>Polyhedron: The International Journal for Inorganic and Organometallic Chemistry >PD-II AND PT-II COMPLEXES CONTAINING 1,1,4,7,10,10-HEXAPHENYL-1,4,7,10-TETRAPHOSPHADECANE - FIRST X-RAY STRUCTURE OF A PD-TETRAPHOS COMPLEX
【24h】

PD-II AND PT-II COMPLEXES CONTAINING 1,1,4,7,10,10-HEXAPHENYL-1,4,7,10-TETRAPHOSPHADECANE - FIRST X-RAY STRUCTURE OF A PD-TETRAPHOS COMPLEX

机译:包含1,1,4,7,10,10-己基-1,4,7,10-四磷烷的PD-II和PT-II复合物-PD-TETRAPHOS复合物的第一个X射线结构

获取原文
获取原文并翻译 | 示例
           

摘要

Pd-II and Pt-II complexes of meso- or rac-1,1,4,7,10,10-hexaphenyl-1,4,7,10-tetraphosphadecane (tetraphos-1, P4) have been prepared and characterized by X-ray diffraction methods, NMR spectroscopy (Pt-195{H-1}, P-31{H-1}), elemental analyses and melting points. The first X-ray structure of a Pd-tetraphos complex shows a strongly distorted square planar coordination in meso-[PdP4]Cl-4 (1). The Pd-atom deviates 0.231 Angstrom A from the best plane through the phosphorus atoms leading to an angle of 17.4 degrees between the planes through Pd and the phosphorus atoms of the PPh(2), and through Pd and the phosphorus atoms of the PPh groups, respectively. Rac-[PdClP4]Cl (2) shows a trigonal bipyramidal coordination. The destabilization of a square planar P4 arrangement in 2 is discussed in view of the X-ray structure of 1. Meso-(3) and rac-[Pd2Cl2(mu-Cl)P4]Cl (4) contain P4 in a chelating and bridging mode. In the case of Pt(II) three further derivatives of the earlier reported complexes meso- or rac-[Pt2Cl2(mu-Cl)P4]Cl have been prepared: rac-[Pt2Cl2(mu-Cl)(mu-t-dppe)P4]Cl (5), where t-dppe is trans-1,2-bis(diphenylphosphino)ethylene, and meso- (6) and rac-[Pt2Cl2(mu-Cl)(mu-pyrimidine)P4](PF6) (7). The compounds 5-7 are rare examples of triply bridged Pt(II) dimers containing two five-coordinate Pt(II) centres. [References: 23]
机译:制备了介孔或rac-1,1,4,7,10,10-六苯基-1,4,7,10-四磷烷(tetraphos-1,P4)的Pd-II和Pt-II配合物X射线衍射法,NMR光谱法(Pt-195 {H-1},P-31 {H-1}),元素分析和熔点。 Pd-tetraphos配合物的第一个X射线结构显示在中观[PdP4] Cl-4中强烈扭曲的方形平面配位(1)。 Pd原子从最佳平面偏离磷原子的角度为0.231埃,导致穿过Pd和PPh(2)的磷原子的平面以及穿过Pd和PPh基团的磷原子的平面之间的夹角为17.4度, 分别。 Rac- [PdClP4] Cl(2)显示三角双锥体配位。鉴于1的X射线结构,讨论了2中方形平面P4排列的失稳。Meso-(3)和rac- [Pd2Cl2(mu-Cl)P4] Cl(4)在螯合中包含P4,并且桥接模式。在Pt(II)的情况下,已制备了较早报道的络合物的三个其他衍生物:内消旋或rac- [Pt2Cl2(mu-Cl)P4] Cl:rac- [Pt2Cl2(mu-Cl)(mu-t-dppe) )P4] Cl(5),其中t-dppe是反式1,2-双(二苯基膦基)乙烯,内消旋-(6)和rac- [Pt2Cl2(mu-Cl)(mu-嘧啶)P4](PF6 )(7)。化合物5-7是包含两个五个五个坐标的Pt(II)中心的三重桥接Pt(II)二聚体的罕见实例。 [参考:23]

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