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首页> 外文期刊>Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy >Determination of reorganization energy of fluorenone and 4-hydroxyluorenone in neat and binary solvent mixtures
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Determination of reorganization energy of fluorenone and 4-hydroxyluorenone in neat and binary solvent mixtures

机译:净溶剂和二元溶剂混合物中芴酮和4-羟基洛烯酮的重组能的测定

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Steady-state absorption and fluorescence measurements of fluorenone and 4-hydroxyfluorenone in neat and binary solvent mixtures were used to explore the reorganization energy in liquid system. The results of spectroscopic measurements were used to calculate, according to Marcus theory, the outer-sphere solvent reorganization energy, lambda(0), and the internal molecular reorganization energy, lambda(in). Preferential solvation of fluorenone and 4-hydroxyfluorenone in binary solvent mixtures has been studied by monitoring the outer-sphere solvent reorganization energy. In cyclohexane-tetrahydrofuran mixtures, the deviation from linearity in the lambda(0) versus the solution polarity is due to non-specific dipolar solvent-solute interactions. For cyclohexane-ethanol binary mixtures, both non-specific and specific (hydrogen bond) interactions contribute to the observed changes. (C) 2006 Elsevier B.V. All rights reserved.
机译:净溶剂和二元溶剂混合物中芴酮和4-羟基芴酮的稳态吸收和荧光测量用于探索液体系统中的重组能。根据Marcus理论,使用光谱测量的结果来计算外层溶剂的重组能lambda(0)和内部分子的重组能lambda(in)。通过监测外层溶剂的重组能量,研究了芴酮和4-羟基芴酮在二元溶剂混合物中的优先溶剂化作用。在环己烷-四氢呋喃混合物中,λ(0)中的线性与溶液极性的偏差是由于非特异性偶极溶剂-溶质相互作用引起的。对于环己烷-乙醇二元混合物,非特异性和特异性(氢键)相互作用均会导致观察到的变化。 (C)2006 Elsevier B.V.保留所有权利。

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