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化学学报
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化学学报 ›› 1998, Vol. 56 ›› Issue (9): 886-891. 上一篇    下一篇

研究论文

2, 3, 7-三羟基-9-间羟基苯基荧光酮的合成及其 分析性能的研究

谢增鸿;张帆   

  1. 福州大学化学系.福州(350002)
  • 发布日期:1998-09-15

Studies on synthesis, properties of 2, 3, 7-trihydroxy-9- (m-hydroxy) phenylfluorone

Xie Zenghong;Zhang Fan   

  1. Fuzhou Univ, Dept Chem.Fuzhou(350002)
  • Published:1998-09-15

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研究合成了新试剂2,3,7-三羟基-9-间羟基苯基荧光酮(简称m-HPF)。测定了试剂各级酸离解常数。研究了试剂的化学发光性能和试剂与金属离子的显色行为。结果表明,只有Co^2^+离子对m-HPF-H~2O~2体系有较强的催化发光作用;在表面活性剂存在下,试剂与许多离子都呈灵敏的显色反应。用Huckel分子轨道法(HMO)计算了中性分子及各离子构式的π电子分布,对离解常数进行了归属。

关键词: 荧光酮, 羟基化合物, 化学试剂, 离解平衡, 稳定常数, 化学发光, 显色反应, 电荷分布, 休克尔分子轨道, 合成

A new analytical reagent, 2, 3, 7-trihydroxy-9-(m-hydroxy) phenylfluorone (m-HPF) was synthesized.The acidic dissociation constant of m-HPF has been determined. Catalytic chemiluminescence of over twenty metallic ions in the system of m-HPF-H~2O~2 has been tested. The color reactions of the reagent with some metal ions were studied in detail. π-Electron distribution of m-HPF has been calculated by means of Huckel molecular orbital (HMO) method. Acidic dissociation constants have been assigned.

Key words: FLUORONE, HYDROXYL COMPOUNDS, CHEMICAL REAGENT, DISSOCIATION EQUILIBRIUM, STABILITY CONSTANT, CHEMILUMINESSENCE, COLOR REACTION, CHARGE DISTRIBUTION, HUCKEL MOLECULAR ORBITAL, SYNTHESIS

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