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首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Activated Radiationless Decay of Rhodamine 3B:Polyarity and Friction Effects
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Activated Radiationless Decay of Rhodamine 3B:Polyarity and Friction Effects

机译：罗丹明3B的活化无辐射衰变：多元和摩擦效应。

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摘要

The intramolecular activated nonradiative decay of the first excited singlet of the Rh studied in a large number of polar solvents covering a wide range of viscosities. The phoo~di~si~ in terms of an isomerization process occurring at the diethyl amino group with adiabatic tx~ experimental data show that friction effects determine the reaction rates, which are modeled in of Kramers and Grote—Hynes theories. The reactant well wavenumber (wd2~rc) is estimated ~ coincides with the wavenumber of the barrier top (wb/23rc) for the less viscous solvents. The fwin invariant with the solvent and is a good approximation to the reactive molecular mode invc1~ nonradiative deactivation. The increase in dipole moment at the barrier top relative to the bottom. reactant well is inferred from intrinsic barrier heights whose stabilization energies vary according theory of dielectrics.
机译：Rh的第一个激发单线态的分子内活化非辐射衰变是在覆盖广泛粘度的大量极性溶剂中研究的。就发生在绝热tx的二乙基氨基上发生的异构化过程而言，实验数据表明，摩擦效应决定了反应速率，这是根据Kramers和Grote-Hynes理论建模的。估计反应物的阱波数（wd2〜rc）与低粘性溶剂的势垒顶部的波数（wb / 23rc）一致。溶剂的双键不变量，是非辐射失活反应分子模式的良好近似。势垒顶部相对于底部的偶极矩增加。从本征势垒高度推断反应物阱，其固有稳定能根据电介质理论而变化。

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