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合成了5,15-二对羟苯基-10,20-二对甲氧苯基卟啉(1),5,10-二对羟苯基-15,20-二对甲氧苯基卟啉(2),四个桥链冠醚卟啉(6a,6b,7a,7b)以及6a,7a的钴(Ⅱ)配合物(6a-Co~Ⅱ,7a-Co~Ⅱ)。用分光光度法研究了在二氯甲烷中6a-Co~Ⅱ与咪唑、吡啶、2-甲基吡啶,2,6-二甲基吡啶的配位作用,测定了配位平衡常数,并探讨了光照对6a-Co~Ⅱ与2,6-=甲基吡啶的配位反应的影响。结果表明:6a-Co~Ⅱ与这些有机碱均为1:1作用,它们的平衡常数大小顺序是咪唑>吡啶>2-甲基吡啶>2,6-二甲基吡啶;光照能大大加快6a-Co~Ⅱ与2,6-二甲基吡啶的作用。
Synthesis of 5,15-di-p-hydroxyphenyl-10,20-di-p-methoxyphenyl porphyrin (1), 5,10-di-p-hydroxyphenyl-15,20- (2), four bridged crown ether porphyrins (6a, 6b, 7a, 7b) and cobalt (Ⅱ) complexes of 6a and 7a (6a-Co ~ Ⅱ, 7a-Co ~ Ⅱ). The coordination of 6a-Co ~ Ⅱ with imidazole, pyridine, 2-methylpyridine and 2,6-lutidine in dichloromethane was studied spectrophotometrically and the coordination equilibrium constants Effect of Light on the Coordination Reaction of 6a-Co ~ Ⅱ with 2,6- = Picoline. The results showed that the order of the equilibrium constants of 6a-Co ~ Ⅱ and these organic bases were 1: 1, and the order of their equilibrium constants was imidazole> pyridine> 2-picoline> 2,6-lutidine; The role of -Co ~ Ⅱ and 2,6-lutidine.