高等学校化学学报 ›› 1992, Vol. 13 ›› Issue (6): 745.

• 论文 • 上一篇    下一篇

三羟基荧光酮试剂的量子化学计算和性能的讨论

吴念慈, 刘定武, 王耐冬, 戚文彬   

  1. 杭州大学化学系, 杭州, 310028
  • 收稿日期:1991-06-20 出版日期:1992-06-24 发布日期:1992-06-24
  • 通讯作者: 戚文彬
  • 基金资助:

    国家自然科学基金

Quantum Chemistry Calculation for the π-Charge Density Distribution of 2,3,7-Trihydroxyfluorones and the Discussion of Their Properties

WU Nian-ci, LIU Ding-wu, WANG Nai-dong, QI Wen-bin   

  1. Department of Chemistry, Hangzhou University, Hangzhou, 330028
  • Received:1991-06-20 Online:1992-06-24 Published:1992-06-24

摘要: 应用Hückel分子轨道法计算了15种三羟基荧光酮试剂分子的π电荷密度分布,确定了三羟基荧光酮分子中3个羟基离解的顺序、金属离子的配合位置和螯合物的结构。进一步讨论了取代基和反应介质对此类试剂分析性能的影响。

关键词: Hü, ckel分子轨道法, 三羟基荧光酮, &pi, 电荷密度分布, 配合物的结构

Abstract: The π-charge density distribution of fifteen 2,3, 7-trihydroxyfluorones has been calculated by HMO method.The sequence of the dissociation of three hydroxyl groups of 1,3,7-tri-hydroxyfluorones has been settled by analysis of π-charge density distribution.According to the proper acidity ranges of color reactions and the molar ratio of the colored complexes, the structure of the complexes are discussed.

Key words: HMO method, 2,3,7-trihydroxyfluorones, π-charge density distribution, Structure of the complexes

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