邻硝基苯基荧光酮化学发光性能和机理研究

研究了在碱性介质中金属离子催化邻硝基苯基荧光酮（ｏ－ＮＰＦ）－Ｈ２Ｏ２体系的化学发光行为。结果表明，在研究的２０多种金属离子中，只有Ｃｏ２＋离子对ｏ－ＮＰＦ－Ｈ２Ｏ２体系有较强的催化发光作用，Ｃｏ２＋的浓度与发光强度在２．５×１０－９～３．０×１０－６ｇ／ｍＬ范围内呈良好的线性关系。通过对化学发光光谱、荧光光谱的研究以及用Ｈｕｃｋｅｌ分子轨道法（ＨＭＯ）计算了ｏ－ＮＰＦ的π电子分布和键级，提出了ｏ－ＮＰＦ可能的化学发光机理．

Chemiluminescent Characteristics and Mechanism of 2, 6, 7 -Trihydroxyl -9 - (2'''' -nitrophenyl )-3 -fluorone

Catalytic chemiluminescence of over twenty metallic ions in the system of 2,6,7trihydroxyl-9-(2'-nitrophenyl has been tested. Trace amounts of Co (II ) catalysed this chemiluminescence reaction strongly and the chemiluminescence intensity was proportional to the concentration of Co ( II ) in the range of 2. 5 X 10-9-3. 0 X 10-6 g/mL. The optimum conditions for this catalytic chemiluminescence reaction were investigated in detail. A possible mechanism for this catalytic chemiluminescence reaction is proposed on the basis of studying chemiluminescent spectra, fluorescent spectra and Huckel molecular orbital method treatment for the reagent molecule.