论文部分内容阅读
本文测定了ＶＯＳＯ_４与脯氨酸（Ｐｒｏ）、邻菲咯啉（Ｐｈｅｎ）在不同酸度（ｐＨ＝１～１４）的乙二醇／水（１：１）溶液中的低温（１７３Ｋ）ＥＰＲ波谱，根据不同ｐＨ下的ＥＰＲ谱变化，利用Ｊｏｈｎｓｏｎ的加合规则，并结合配合物的红外光谱推测了它们的可能结构。利用波谱参数计算了配合物的键参数，利用电子光谱数据计算了配合物的晶体场参数，讨论了它们的成配特性。结果表明，随着取代水分子的配体（Ｐｈｅｎ或Ｐｒｏ）数目增加，键参数减小，配合物共价性增强，同时得出Ｐｈｅｎ与ＶＯ（Ⅱ）配位能力比Ｐｒｏ强得多。
In this paper, the low temperature (173K) EPR spectra of VOSO_4 and proline (Pro) and phenanthroline (Phen) in ethylene glycol / water (1: 1) solution with different acidity Based on the changes of EPR spectra at different pHs, the possible structure of these complexes was deduced by the adduction rules of Johnson and the infrared spectra of the complexes. The key parameter of the complex was calculated by spectral parameters, and the crystal field parameters of the complex were calculated by electron spectroscopy data. The formation properties of the complex were discussed. The results showed that with the increasing number of ligands (Phen or Pro) replacing the water, the bond parameters decreased and the covalentness of the complexes increased. At the same time, the coordination ability between Phen and VO (Ⅱ) was stronger than that of Pro.