| 174744-51-5

• CAS: 174744-51-5
• 化学式: C₂₄H₃₃B₉Ru
• 分子量: 519.895
• InChiKey: UJWJLAZJWIEHBB-DUFSSLHGSA-N

反应信息

• 作为产物：
  描述：

  [ruthenium(II)(η⁶-1-methyl-4-isopropyl-benzene)(chloride)(μ-chloride)]₂ 、 Tl2(7,8-Ph2-7,8-nido-C2H9B9) 以 二氯甲烷 为溶剂， 以15%的产率得到
  参考文献：
  名称：

  Synthesis and characterisation of pseudocloso iridium and ruthenium diphenyl carbaboranes. Molecular structures of 1,2-Ph₂-3-(η-C₆H₆)-3,1,2-pseudocloso-RuC₂B₉H₉and 1,2-Ph₂-3-(cym)-3,1,2-pseudocloso-RuC₂B₉H₉(cym =p-cymene) and individual gauge for localised orbitals calculations on carbametallaboranes

  摘要：

  The syntheses and characterisations of 1,2-Ph(2)-3-(eta-C(5)Me(5))-3,1,2-pseudocloso-IrC2B9H9 1, 1,2-Ph(2)-3-(eta-C6H6)-3,1,2-pseudocloso-RuC2B9H9 2, 1,2,-Ph(2)-3-(cym)-3,1,2-pseudocloso-RuC2B9H9 (cym = p-cymene) 3 and 1,2-Ph(2)-3-(eta-C(6)Me(6))-3,1,2-pseudocloso-RuC2B9H9 4 are reported from the reactions between Tl-2[7,8-Ph(2)-nido-7,8-C2B9H9] and either [{IrCl2(C(5)Me(5))}(2)] or the appropiate [{RuCl2(arene)}(2)] species. By B-11 NMR spectroscopy all these compounds have pseudocloso geometries, in which the C(1)... C(2) connectivity is broken and an approximately square M(3)C(1)B(6)C(2) face is generated. Crystallographic studies on 2 and 3 confirm this suggestion. It is suggested that distortion in these species arises from steric crowding between the C-phenyl substituents, forced to adopt conformations with high theta values by the presence of the eta-bonded substituent at M(3). Individual gauge for localised orbitals calculations, reported for the first time on transition-metal heteroboranes, reasonably reproduce the (previously assigned) B-11 NMR chemical shifts of 3-(eta-C(5)Me(5))-3,1,2-closo-RhC2B9H11, and allow a tentative assignment of those of 1,2-Ph(2)-3-(eta-C(5)Me(5))-3,1,2-pseudocloso-RhC2B9H9.

  DOI：

  10.1039/dt9960000231