摘要
合成了一系列由聚醚桥连的N ,N′ 二苯基二异羟肟酸L1H2 ～L6H2 及其双核钴 (Ⅱ )配合物Co2 L12 ～Co2 L62 ,并以元素分析 ,IR ,1HNMR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ΔH0 ,ΔS0 ,并与多亚甲基或苯基桥连的类似物Co2 L72 和Co2 L82 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 )
A series of polyether-bridged N,N′-diphenyl dihydroxamic acids L 1H 2～L 6H 2 and their dicobalt (Ⅱ) complexes Co 2L 1 2～Co 2L 6 2 were synthesized and characterized by elemental analysis, IR, 1H NMR and MS spectra. Equilibrium constants and thermodynamic constants (ΔH 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.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
2002年第5期886-891,共6页
Acta Chimica Sinica
基金
国家自然科学基金 (No .2 0 0 72 0 2 5 )资助项目
