| 62363-55-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 茚和异茚
• CAS: 62363-55-7
• 化学式: C₂₀H₁₂N₂NiO₆
• 分子量: 435.015
• InChiKey: RYMOYWGYHDOEGI-OFLUISNTSA-L

反应信息

• 作为产物：
  描述：

  以 neat (no solvent) 为溶剂， 生成
  参考文献：
  名称：

  Reactivity of acyl and aquo groups in metal—quinone aggregates of photosystem-II

  摘要：

  Because thermolytic products are analogous to photolytic products, non-isothermal TGA studies of metal-quinones involved in Photosystem-II have been undertaken. The compositions of the compounds C-1-C3 are ML2.xH2O. For C-1 and C-2, M = Co(II), x = 2, and L = Lw in the former and L = O-acylLwOx in the latter; for C-3, M = Ni(II), x = 4 and L = LwOx. The weight loss versus temperature data are treated using the Coats and Redfern relationship. In C-1, the water molecules are ligand participants in the coordination, while in C-2 and C-3 the water molecules are adsorbed. The kinetic data of the thermolysis throw light on the energetics of the O O and O N O ligations in quinone chelates, together with their acyl and aquo functionalities.The E(a) values of Lw in C-1 and of the acyl and LwOx functional moieties in C-2, are comparable: 55, 58 and 57 kJ mol-1 respectively. The aquation effect dominates in C-1, as the E(a) of H2O is almost-equal-to 82 kJ mol-1. The adsorbed water molecules in C-3 have an E(a) almost-equal-to 7.5 kJ mol-1, while the outer-sphere water molecules participate in the hydrolysis of the O-acyl functional group during the pyrolytic reaction of C-2, which requires an energy almost-equal-to 81.6 kJ mol-1.

  DOI：

  10.1016/0040-6031(91)87217-k