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本文研究La(NO_3)_3与二异丙氧基膦酰乙酸异丙酯(1)和二丁氧基膦酰乙酸异丙酯(H)的配合机理。研究表明在配合物I中La~(3+)离子配位在胱酰基(P=O)和羰基′(C=O)上。并测得的其配合常数K为0.4,而配合物Ⅱ配位在P=O上,其配合常数K为0.04。
In this paper, the coordination mechanism between La (NO_3) _3 and diisopropoxyphosphonoacetate (1) and dibutoxyphosphonoacetate (H) was studied. The results show that La ~ (3 +) ions coordinate with cystinyl (P = O) and carbonyl (C = O) in complex I. The complex constant K was found to be 0.4, while the complex Ⅱ was coordinated to P = O with the complexing constant K of 0.04.