closo-[3-Co(η5-NC4H4BH3)-1,2-C2B9H11] | 449810-75-7

• 英文名称: closo-[3-Co(η5-NC4H4BH3)-1,2-C2B9H11]
• CAS: 449810-75-7
• 化学式: C₆H₁₈B₁₀CoN
• 分子量: 271.319
• InChiKey: RMUVIVDSZYPLRV-UHFFFAOYSA-N

反应信息

• 作为产物：
  描述：

  硼烷四氢呋喃络合物 、 closo-[3-Co(η5-NC4H4)-1,2-C2B9H11] 以 甲苯 为溶剂， 生成 closo-[3-Co(η5-NC4H4BH3)-1,2-C2B9H11]
  参考文献：
  名称：

  Coordinating properties of mixed pyrrolyl/dicarbollide cobalt metallocene-type complexes

  摘要：

  Mixed-sandwich Co(III) complexes incorporating an η5 pyrrolyl unit [η5-NC4H4]− are very stable when the second η5 moiety is a dicarbollide [η5-C2B9H11]2−. The existence of a lone pair on N in the neutral closo-[3-Co(η5-NC4H4)-1,2-C2B9H11] (1) has allowed for the first time a study of the N-σ bonding capacity of a pyrrolyl ligand η5 bonded to a metal in an oxidation state higher than two. This capacity has been proven by reacting closo-[3-Co(η5-NC4H4)-1,2-C2B9H11] with Lewis acids (BH3, BF3 and Ag+) and a Co(III) macrocycle. In all cases the reaction went to completion proving the strength of the σ bond generated. The stability of the [3-Co(η5-NC4H4)-1,2-C2B9H11] complexes vs. oxidation state Co(III)/Co(II) was studied by cyclic voltammetry. It was found that [3-Co(η5-NC4H4)-1,2-C2B9H11]− is not as stable as [3-Co(η5-NC4H4)-1,2-C2B9H11]; however, when coordinated to cobalt(III), both [3-Co(η5-NC4H4)-1,2-C2B9H11]− and [3-Co(η5-NC4H4)-1,2-C2B9H11] are of comparable stability. The stability of the reduced form Co(II) in the mixed pyrrolyl/dicarbollide is enhanced when an electron withdrawing group is bonded to the cluster carbon atom in the dicarbollide.

  DOI：

  10.1039/b110918a