【作者】 陈德余； 冯亚非； 陆建江； 徐元植； 何玲；

【Author】 Chen Deyu Feng Yafei Lu Jianjiang Xu Yuanzhi He Ling

【机构】 浙江大学化学系；

【摘要】 <正>氧钒的二元配合物已有报导,但三元混配配合物的ESR研究未见报导。本文考察了VOSO₄-天冬氨酸（Asp）-邻二氮菲（phen）及联吡啶（bipy）三元体系在1:1的乙二醇水溶液中,不同酸度时的低温ESR谱,发现pH值不同时,生成不同结构的配合物。根据测得的ESR波谱参数,计算出电子能级和键参数如表1所示。更多还原

【Abstract】 ESR study of oxovanadium ternary complexes has been not reported up to now.The ESR spectra of VO(Ⅱ)-Asp-phen and VO(Ⅱ)-Asp-bipy ternary complexs in glycol water(1:1)solution of various acidity at low temperature have been teported.It is found that the different structural complexes was formed within different pH range.Their possible structure have been suggested.The results show that Asp and bipy can coordinate with oxovanadium to form ternary complex within the range of 4.5<pH<8.0, the Asp and phen can coordinate with oxovanadium to form ternary complex within the range of 0.6<pH<10.5.It is proven that the phen is more strong coordinating ability with VO(Ⅱ)than bipy.ability than bipy.更多还原