冠醚化双Schiff碱钴(Ⅱ)配合物的氧合性能研究

STUDIES ON DIOXYGEN AFFINITY OF CROWNED BINARY SCHIFF BASE COBALT(Ⅱ) COMPLEXES

由冠醚化双ｓｃｈｉｆ碱Ｌ１Ｈ２Ｌ４Ｈ２与醋酸钴（Ⅱ）或硝酸钠（Ⅰ）／醋酸钴（Ⅱ）反应，分别制得了它们的钴（Ⅱ）配合物１～４和钠（Ⅰ）／钴（Ⅱ）双核配合物５．测定了１～５的氧合常数Ｋｏ２，并与非冠醚化品种进行比较，讨论了冠醚环及其配合的钠离子对氧分子加合性能的影响．

Crowned binary Schiff base L 1H 2 L 4H 2 reacted with Co(OAc) 2 or NaNO 3/Co(OAc) 2 to obtain their cobalt(Ⅱ) complexes 1～4 and sodium (Ⅰ)/cobalt(Ⅱ) binuclear complex 5.The adduction constants for dioxygen of these complexes 1～5 were measured and the influences of crown ether ring and Na + coordinated in ether ring on dioxygen affinity were discussed.The results showed that crowned Schiff base cobalt(Ⅱ) complexes was superior to uncrowned analogues 4～9 in the dioxygen affinities of the complexes.