isocyanomethane;osmium dihydride;1,3,5-trimethylbenzene | 145483-03-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: isocyanomethane;osmium dihydride;1,3,5-trimethylbenzene
• CAS: 145483-03-0
• 化学式: C₁₁H₁₇NOs
• 分子量: 353.463
• InChiKey: QNXDRZAQRZOOKJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为产物：
  描述：

  Dichloroosmium;isocyanomethane;1,3,5-trimethylbenzene 在 溶剂黄146 、 锌 作用下， 以 甲醇 为溶剂， 以63%的产率得到isocyanomethane;osmium dihydride;1,3,5-trimethylbenzene
  参考文献：
  名称：

  A series of mono- and dihydrido- as well as mono- and dimethylosmium(II) complexes containing [(mes)Os(CNR)] as a building block

  摘要：

  The dihydridoosmium(II) complexes [(mes)OsH2(CNR)] (7-10) were prepared in excellent yield from the dichloroosmium(II) precursors [(mes)OsCl2(CNR)] upon treatment with 10% magnesium amalgam in THF in the presence of ethanol. Under similar conditions, the methylisocyanide derivative [(mes)OsH2(CNMe)] (6) as well as the monohydrido compounds [(mes)OsH(X)(CNMe)] (11, 13) were obtained. The same methodology using [(mes)OsCl(C6H5)(CNR)] as the starting material was applied for the preparation of the hydrido(phenyl)osmium(II) complexes [(mes)OsH(C6H5)(CNR)] (19-23) which were also isolated in almost quantitative yield. Treatment of these complexes with HCl in CH2Cl2 at -78 degrees C led to the cleavage of the osmium-phenyl but not the osmium-hydride bond. Reactions of [(mes)OsCl2(CNR)] with MeLi/LiCl gave exclusively the dimethylosmium(II) compounds [(mes)Os(CH3)(2)(CNR)] (29-32) while the corresponding reactions with MeLi/LiI afforded a mixture of 29-32 and the monomethyl derivatives [(mes)OsI(Me)(CNR)] (26, 33-35). A cyclic carbeneosmium(II) complex 37 was obtained from [(mes)OsCl2(CNPh)] and MeLi/LiI followed by treatment with deactivated Al2O3. The etheneosmium(0) compound [(mes)Os(C2H4)(CNMe)] (38) was prepared from the dimethylosmium(II) precursor 29 and briefly investigated as starting material for photochemical C-H activation reactions. (C) 2000 Elsevier Science S.A. All rights reserved.

  DOI：

  10.1016/s0022-328x(99)00394-0

文献信息

• Novel synthesis and vibrational analysis of (arene)osmium(II) complexes of the type [(C6H3(CH3)3)OsH2(L)]
  作者：T. Polzer、A. Ellebracht、W. Kiefer、U. Wecker、H. Werner

  DOI：10.1016/0022-328x(92)83415-e

  日期：1992.10

  The dihydridoosmium(II) complexes [(mes)OSH2(L)] (mes = C6H3(CH3)3; L = CO, 4; CNCH3, 5) have been prepared in nearly quantitative yields from [(mes)OsCl2(L)] (L = CO, 1; CNCH 3, 2) and Mg/Hg in THF in the presence of C2H5OH as a proton source. These complexes are suitable for studies of C-H activation by UV irradiation in solution. The FT-IR and Raman spectra of 4 and 5 have been recorded in the range between 400 and 3300 cm-1 and between 100 and 3300 cm-1, respectively; a complete assignment of the observed vibrational modes is presented, supported by polarized Raman spectra. The Os-ligand vibrations of half sandwich complexes of this type have been determined for the first time. A normal coordinate analysis of the osmium-ligand modes has been performed by treating the ring ligand as a point mass. Force constants and potential energy distributions are given.