(p-xylene)Cr(CO)5 | 132069-82-0

• 英文名称: (p-xylene)Cr(CO)5
• 英文别名: Cr(CO)5(η(2)-p-xylene)
• CAS: 132069-82-0
• 化学式: C₁₃H₁₀CrO₅
• 分子量: 298.215
• InChiKey: ASAFWVWRXBZQPT-UHFFFAOYSA-N

反应信息

• 作为产物：
  描述：

  对二甲苯 、 六羰基铬 以 正庚烷 为溶剂， 生成 (p-xylene)Cr(CO)5
  参考文献：
  名称：

  Bonding modes of arenes in photogenerated (arene)Cr(CO)5 complexes

  摘要：

  Detailed kinetics studies of arene displacement by 1-hexene from the ten (arene)Cr(CO)(5) complexes (arene = C6H6-n(CH3)(n); n = 2-5) generated by pulsed laser flash photolysis have been conducted. The data indicate that all reactions obey a 'reversible dissociation-competition for the [Cr(CO)(5)] intermediate' mechanism. The systematic variations in rate constants for unimolecular dissociation of arenes in the presence of l-hexene 'trap' strongly support 'edge-on' bonding of the arene to Cr for the methyl-substituted benzene compounds in which there is a C-C 'ring-edge' unsubstituted by methyls. Where no such ring-edge is present, i.e., for mesitylene, 1,2,3,5-tetramethylbenzene, 1,2,4,5-tetramethylbenzene and pentamethylbenzene, the kinetics data suggest that a rapid equilibrium is established between two binding modes, the second possibly through the ring center. (C) 1998 Elsevier Science S.A.

  DOI：

  10.1016/s0020-1693(97)05929-x