Evaluating the Solvent Stark Effect from Temperature-Dependent Solvatochromic Shifts of Anthraceneстатья
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Дата последнего поиска статьи во внешних источниках: 3 июня 2020 г.
Аннотация:The solvent Stark effect on the spectral shifts of anthracene is studied with temperature‐dependent solvatochromic measurements. The Stark contribution Δv Stark to the absorption shift Δv p in polar solvents is measured to be Δv Stark=(53±35) cm−1, in reasonable agreement with dielectric continuum theory estimate of 28 cm−1, whereas the major shift Δv p∼300 cm−1 presumably originates from the solute quadrupole. We pay attention to the accurate correction of Δv p for the nonpolar contribution that is crucial when the shifts are modest in magnitude.