{(μ-diphenylphosphino)methane}-μ-but-2-yne-tetracarbonyldicobalt | 140366-09-2

• 英文名称: {(μ-diphenylphosphino)methane}-μ-but-2-yne-tetracarbonyldicobalt
• CAS: 140366-09-2
• 化学式: C₃₃H₂₈Co₂O₄P₂
• 分子量: 668.517
• InChiKey: MXGRYQOFPDEUQQ-UHFFFAOYSA-N

反应信息

• 作为反应物：
  描述：

  {(μ-diphenylphosphino)methane}-μ-but-2-yne-tetracarbonyldicobalt 、 双二苯基膦甲烷 以 甲苯 为溶剂， 以55-56的产率得到{Co2(CO)2(μ-MeC2Me)(μ-bis-(diphenyl phosphino)methane)2}
  参考文献：
  名称：

  Oxidatively induced alkyne rotation in dicobalt complexes: structural tests of molecular orbital theory

  摘要：

  The complexes [Co2(CO)2(mu-RC2R)(mu-dppm)2] 1 (R = Me, Ph or CO2Me; dppm = Ph2PCH2PPh2) undergo reversible one-electron oxidation at a platinum-bead electrode in CH2Cl2; chemical oxidation of 1 with the ferrocenium ion or with iodine gives stable salts of the monocations 1+. The X-ray structures of 1 (R = Me and Ph) show the alkyne bridge to be orthogonal to a cobalt-cobalt bond which is also bridged by the two dppm ligands. The overall structure of 1+ (R = Me), as its [PF6]-salt, is similar but with the alkyne bridge rotated by 12-degrees about an axis perpendicular to the shortened metal-metal bond. The structural changes observed provide direct experimental support for previous bonding studies of the structural preferences of hydrocarbon-bridged M2(CO)6 complexes.

  DOI：

  10.1039/dt9920000655