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溶剂对镓Corrole光谱性质的影响
  • 期刊名称：物理化学学报, 27 (1), 199-206, 2011
  • 时间：0
  • 分类：O641[理学—物理化学;理学—化学] O645[理学—物理化学;理学—化学]
  • 作者机构：[1]华南理工大学化学系,广州510641, [2]中山大学光电材料与技术国家重点实验室,广州510275, [3]华南理工大学应用物理系,广州510641
  • 相关基金：国家自然科学基金（20771039 20871122 20971046）资助项目~~
  • 相关项目：端粒酶抑制剂：钌配合物与G-四链体DNA的相互作用研究
关键词： CORROLE, 镓, 荧光, 溶剂效应, Corrole, Gallium, Florescence, Solvent effect
中文摘要：

合成了一系列周边取代的Corrole（1,2,3,4）及其镓配合物1-Ga（Py）、2-Ga（Py）、3-Ga（Py）、4-Ga（Py）,通过核磁共振氢谱（1HNMR）,紫外-可见光谱,电喷雾离子质谱（ESI-MS）的方法对其进行了表征.研究了不同溶剂对这一系列自由Corrole及镓Corrole的紫外-可见（UV-Vis）吸收光谱,稳态荧光和时间分辨荧光光谱,将获得的荧光衰减动力学曲线采用单指数拟合并进行解卷积处理获得荧光的寿命值.非（弱）极性溶剂对镓Corrole紫外光谱的影响服从Bayliss方程,且镓Corrole非辐射能量损失hc（ν1A-νF）与F（n）呈线性相关.

英文摘要：

A series of peripherally substituted free base corroles（1,2,3,4） and their gallium complexes 1-Ga（Py）,2-Ga（Py）,3-Ga（Py）,4-Ga（Py） were synthesized and characterized by proton nuclear magnetic resonance（1H NMR）,UV-visible（UV-Vis） spectroscopy and electrospray ionization mass spectra（ESI-MS）.The UV-visible spectra,steady state fluorescence spectra,and time resolved fluorescence spectra of the free base corroles and their gallium complexes were recorded in different solvents.Fluorescence lifetimes were obtained by fitting fluorescence decay kinetics curves using a single exponential simulation.The effects of non or weak polar solvents on the UV spectrum of gallium corrole were fitted to the Bayliss equation and the non-radiative energy loss hc（ν1A-νF） of gallium corrole and F（n） showed a linear correlation.

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