SIOC English
化学学报
高级检索

化学学报 ›› 2002, Vol. 60 ›› Issue (5): 886-891. 上一篇    下一篇

研究论文

聚醚桥连二异羟肟酸的合成及其双核钴(II)配合物的氧加合性能

李鸿波;杜瑛;曾伟;魏星耀;秦圣英   

  1. 四川大学化学学院,成都(610064)
  • 发布日期:2002-05-15

Synthesis of Polyether-bridged Dihydroxamic Acids and Dioxygen- Affinities of Their Dicobalt (II) Complexes

Li Hongbo;Du Ying;Zeng Wei;Wei Xingyao;Qin Shengying   

  1. Department of Chemistry, Sichuan University,Chengdu(610064)
  • Published:2002-05-15

PDF

526

被引次数

9

合成了一系列由聚醚桥连的N，N'－二苯基二异羟肟酸L~1H_2-L~6H_2及其双核 钴（II）配合物Co_2L_2~1 ～ Co_2L_2~6，并以元素分析，IR，~1H NMR和MS进行 了表征。在不同温度下，测定了双核钴（II）配合物的氧合常数和热力学参数Δ H~0和ΔS~0，并与多亚甲基或苯基桥连的类似物Co_2L_2~7和Co~2L_2~8比较，讨论 了桥链长度、刚柔性、氧杂原子及其构筑的冠环和添加碱（或碱土）金属离子对其 氧加合性的影响。

关键词: 冠式化合物, 羟肟酸, 钴络合物, 聚醚, 元素分析, 红外分光光度法, 质子磁共振谱法

A series of polyether-bridged N, N'-diphenyl dihydroxamic acids L~1H_2-L~6H_2 and their dicobalt (II) complexes Co_2L_2~1 ～ Co_2L_2~6 were synthesized and characterized by elemental analysis, IR, ~1H NMR and MS spectra. Equilibrium constants and thermodynamic constants (Δ H~0 and ΔS~0) for oxygenation of these dicobalt complexes were measured. The influence of the length, rigidity and flexibility, the oxygen atoms as well as the formed crown ring of the bridge chains, the added alkaline (or alkaline earth) cations on the dioxygen- affinities of the complexes is discussed.

Key words: CROWN ETHER COMPOUNDS, HYDROXIMIC ACID, COBALT COMPLEX, POLYETHER, ELEMENTAL ANALYSIS, IR, 1HNMR

中图分类号: