PMID: 11607224Oct 15, 1991Paper

Solvent reorganizational red-edge effect in intramolecular electron transfer

Proceedings of the National Academy of Sciences of the United States of America
A Demchenko, A I Sytnik

Abstract

Polar solvents are characterized by statistical distributions of solute-solvent interaction energies that result in inhomogeneous broadening of the solute electronic spectra. This allows photoselection of the high interaction energy part of the distribution by excitation at the red (long-wavelength) edge of the absorption bands. We observe that intramolecular electron transfer in the bianthryl molecule from the locally excited (LE) to the charge-transfer (CT) state, which requires solvent relaxation and does not occur in vitrified polar solutions, is dramatically facilitated in low-temperature propylene glycol glass by the red-edge excitation. This allows one to obtain spectroscopically the pure CT form and observe its dependence upon the relaxational properties of the solvent. A qualitative potential model of this effect is presented.

References

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Citations

Jan 30, 2002·Luminescence : the Journal of Biological and Chemical Luminescence·Alexander P Demchenko
Mar 1, 1995·Journal of Fluorescence·A S Ladokhin, L Brand
Apr 2, 2010·Journal of Fluorescence·Alexander P Demchenko
Aug 28, 2010·Journal of Fluorescence·Marek Józefowicz, Janina R Heldt
Nov 2, 2013·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·E V FedorenkoV I Vovna
Aug 17, 2001·Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy·N Ghoneim
Jan 15, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Uttam Anand, Saptarshi Mukherjee
Jul 16, 2005·Analytical Biochemistry·Alexander P Demchenko
Dec 17, 2014·The Journal of Physical Chemistry. a·Joachim KübelBenjamin Dietzek
Oct 5, 1992·FEBS Letters·A P Demchenko
Nov 22, 2012·Chemical Society Reviews·Alexander P DemchenkoPi-Tai Chou
Jul 31, 2007·Accounts of Chemical Research·Zhonghan Hu, Claudio J Margulis
Mar 25, 2011·The Journal of Physical Chemistry. B·Sourav HaldarAmitabha Chattopadhyay
Jun 2, 2007·The Journal of Physical Chemistry. B·Guilford JonesValentine I Vullev

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