Empirical Treatment of the Inductive and Dispersive Components of Solute−Solvent Interactions: The Solvent Polarizability (SP) Scale
Empirical Treatment of the Inductive and Dispersive Components of Solute−Solvent Interactions: The Solvent Polarizability (SP) Scale
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溶质-溶剂相互作用的感应和色散成分的实证处理：溶剂极化率 (SP) 量表
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
H. Hopf
中科院分区：
文献类型：
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作者：
J. Catalán;H. Hopf
以3,20-二叔丁基-2,2,21,21-四甲基- 3,5,7,9,11,13,15,17,19 -二十二皂苷烯（ttbP9）为探针，首次对溶剂的诱导和分散相互作用进行了实证评价。该探针显示出非常强的第一电子跃迁，具有明显的振动结构，与第二电子跃迁非常好地分离。用100种溶剂建立了一个溶剂极化率（SP）量表，范围从气相为零（即无溶剂）到二硫化碳为1。该探针对各种极性、酸性和碱性溶剂都表现出理想的光谱行为。极化度标度提供了诸如蒽、分子氧和C60等有趣的极性发色团在极性、酸度和碱度范围很广的各种溶剂中的溶剂致色性的准确描述。（©Wiley-VCH Verlag GmbH & Co. KGaA，德国Weinheim 69451, 2004）
By using 3,20-di-tert-butyl-2,2,21,21-tetramethyl-3,5,7,9,11, 13,15,17,19-docosanonaene (ttbP9) as a probe, the inductive and dispersive interactions of solvents were empirically evaluated for the first time. This probe exhibits a very strong first electronic transition with a marked vibronic structure that is very well resolved from the second electronic transition. One hundred solvents were used to construct a solvent polarizability (SP) scale ranging from zero for the gas phase (i.e. the absence of solvent) to unity for carbon disulfide. The probe was found to exhibit an ideal spectroscopic behaviour towards a variety of polar, acidic and basic solvents. The polarizability scale provides an accurate description of the solvatochromism of such interesting apolar chromophores as anthracene, molecular oxygen, and C60 among a wider variety of solvents spanning very broad ranges of polarity, acidity and basicity. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)