bis[benzylbis(2-ethoxyethyl)phosphine]dichlorocobalt(II) | 172695-38-4

• 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: bis[benzylbis(2-ethoxyethyl)phosphine]dichlorocobalt(II)
• 英文别名: benzyl-bis(2-ethoxyethyl)phosphane;dichlorocobalt
• CAS: 172695-38-4
• 化学式: C₃₀H₅₀Cl₂CoO₄P₂
• 分子量: 666.571
• InChiKey: HCTAZCJPRBCFML-UHFFFAOYSA-L

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：

  bis(2-ethoxyethyl)benzylphosphine 、 cobalt(II) chloride 以 二氯甲烷 为溶剂， 以85%的产率得到bis[benzylbis(2-ethoxyethyl)phosphine]dichlorocobalt(II)
  参考文献：
  名称：

  Chelating ether–phosphine complexes of the cobalt group metals. Crystal structures of bis[benzylbis(2-ethoxyethyl)-phosphine]-bis(trifluoromethanesulfonato)cobalt(II) and -trichlororhodium(III)

  摘要：

  New Group 9 metal complexes have been prepared using the trifunctional ligand benzylbis(2-ethoxyethyl)phosphine (L). Reactions of this potentially hemilabile ligand with CoCl2, and CoCl2 . 6H(2)O with AgCF3SO3, have been studied, resulting in the isolation of [CoCl(2)L(2)] 1 and [CoL(2)(O3SCF3)(2)] 2 respectively. In the former complex L acts as a monodentate P-bonding ligand with the metal adopting a tetrahedral geometry, but in the latter it acts as an O,P chelate. The crystal structure for 2 has been determined and shows the metal to have a distorted-octahedral geometry with trans ligands (P and O) and trans triflates. The P-31-{H-1} NMR spectrum of 2 suggests the formation of a dimeric species in solution, Reactions of L with RhCl3 . 3H(2)O, [{RhCl(CO)(2)}(2)] and [{RhCl(cod)}(2)] (cod = cycloocta-1,5-diene) resulted in the isolation of [RhCl(3)L(2)] 3, [RhCl(CO)L(2)] 4 and [RhCl(cod)L] 5 respectively, where L acts as a monodentate P-bonding ligand in 4 and 5. Complex;4 is shown to be trans by NMR studies. In 3 the ligand bonds as a monodentate phosphorus donor in one case and as a bidentate O,P chelate in the other. The crystal structure of 3 has been determined and shows the metal to have a slightly distorted-octahedral mer arrangement with cis phosphorus donors. The fluxional nature of this complex has been monitored by variable-temperature P-31-(H-1) and H-1 NMR spectroscopy which shows that these ligands readily interchange at high temperatures. The iridium analogue of 5 has been prepared from [{IrCl(cod)}(2)] resulting in the isolation of [IrCl(cod)L] 6. The reaction of 3 with cyclohexene gave an unstable alkene complex 7 which could not be isolated. but was identified by variable-temperature P-31-{H-1} NMR studies.

  DOI：

  10.1039/dt9950003551