cobalt(I)hydride(triethylphosphite)4 | 16940-80-0

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: cobalt(I)hydride(triethylphosphite)4
• CAS: 16940-80-0
• 化学式: C₂₄H₆₁CoO₁₂P₄
• 分子量: 724.629
• InChiKey: LZPBWAHGXMKENM-UHFFFAOYSA-N

反应信息

• 作为反应物：
  描述：

  cobalt(I)hydride(triethylphosphite)4 、 四苯硼钠 以 乙腈 为溶剂， 以>90的产率得到
  参考文献：
  名称：

  Electrochemical behaviour of cobalt(I) hydrides

  摘要：

  The electrochemical behaviour of hydrides [CoHL4][L = P(OEt)3, PPh(OEt)2, or PPh2(OEt)] in CH2Cl2 and MeCN was examined and the relevant oxidation mechanisms elucidated by cyclic voltammetry and coulometry. Different behaviours were observed depending on the nature both of the solvent and of the phosphite ligands. In CH2Cl2 the stepwise oxidation of Co(I) to Co(III) was observed, involving a first reversible one-electron oxidation step to [CoHL4]+, followed, at more positive potentials, by a second one-electron step, chemically irreversible, for all the phosphite ligands employed. In MeCN, for L = P(OEt), or PPh(OEt)2, the first reversible oxidation to cobalt(II) hydrides was followed by a second step complicated by associated chemical reactions involving the solvent to give cobalt(III) cations, [CoH(MeCN)L4]2+. For L = PPh2(OEt) the electrochemical behaviour was complicated by chemical reactions both of the starting cobalt(I) compound and of its oxidation products with the MeCN solvent. Preparative electrolysis allowed the synthesis of a new cobalt(II) derivative characterized as [CoH{P(OEt)3}4] BPh4 by spectroscopic techniques.

  DOI：

  10.1039/dt9940000695

文献信息

• Reactivity of the hydride [CoH{P(OEt)2Ph}4] with RN2 +(R = aryl), NO+, and H+ cations: preparation and properties of new cobalt complexes. Measurements of T 1 for [CoH{P(OEt)2Ph}4] and [CoH2{P(OEt)2Ph}4]BPh4
  作者：Gabriele Albertin、Paola Amendola、Stefano Antoniutti、Emilio Bordignon

  DOI：10.1039/dt9900002979

  日期：——

  80, 200, and 400 MHz for both [CoHP(OEt)2Ph}4] and [CoH2P(OEt)2Ph}4]BPh4 are also reported. The reactivity of the cationic hydrides with CO, RNC, NO, I2, and RN2+ was investigated and the new cations [Co(CNR)2P(OEt)2Ph}3]+(R = 4-CH3C6H4, 4-CH3OC6H4, or 4-ClC6H4) and [CoH(I)P(OEt)2Ph}4]+ synthesized. The unstable intermediate [CoH(NO)P(OEt)2Ph}4]+[ν(NO) at 1 680 cm–1] was also detected.

  [CoH P（OEt）2 Ph} 4 ]与RN 2 +（R = 4-CH 3 C 6 H 4）的反应提供顺磁性阳离子氢化物[CoH P（OEt）2 Ph} 4 ] +， NO +的二亚硝酰基阳离子[Co（NO）2 P（OEt）2 Ph} 2 ] +，HBF 4 ·Et 2 O的阳离子二氢化物[CoH 2 P（OEt）2 Ph} 4 ] +。描述了通过ir，esr和可变温度1 H和31 P- 1 H} nmr光谱对配合物的表征。还报道了[CoH P（OEt）2 Ph} 4 ]和[CoH 2 P（OEt）2 Ph} 4 ] BPh 4在80、200和400 MHz下的可变温度1 H nmr T 1测量值。研究了阳离子氢化物与CO，RNC，NO，I 2和RN 2 +的反应性，并研究了新的阳离子[Co（CNR）2 P（OEt）2 Ph} 3 ]。+（R ＝ 4-CH 3 C 6 H