Intramolecular Charge Transfer (ICT) and Solvation of a Rigidly Linked Pyrene/N-Methylindolino Derivative and Related Compounds in Linear Alcohols
The Journal of Physical Chemistry A1997Vol. 101(4), pp. 350–359
Citations Over TimeTop 12% of 1997 papers
Abstract
Measurements on a rather rigid and coplanar bichromophoric compound have been carried out with respect to intramolecular charge separation, as well as regarding solvation and lifetime of the CT state in alcohol solutions. The results indicate that the CT step proceeds very efficiently followed by a Stokes shift of the CT emission band governed by the dielectric relaxation of the solvent (a series of n-alcohols). The average Stokes-shift time, τsolv (of a few hundred picoseconds), correlates directly with the longitudinal relaxation time, τL = (ε∞/εs)τD, of the solvent. The recently developed single-shot spectrostreak picosecond technique was used for the collection of the time-resolved emission spectra.
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