Cryogenic studies, site selectivity and discrete fluorescence in salicylic acid dimer
PB Bisht, HB Tripathi, DD Pant - Journal of Photochemistry and …, 1995 - Elsevier
Cryogenic effects (10–293 K) on the photophysics of salicylic acid (SA) dimer have been
using steady state and time-resolved spectroscopic techniques. SA dimer shows two
emissions at approximately 390 nm (dimer, D) and approximately 430 nm (tautomer, T),
formed by cyclic double proton transfer plus fast excited state intramolecular proton transfer
(ESIPT), at low temperatures; a vibrational structure also develops which is due to C O and
OH stretches. On red edge excitation (REE), only the dimer-type (UV) emission is observed …
using steady state and time-resolved spectroscopic techniques. SA dimer shows two
emissions at approximately 390 nm (dimer, D) and approximately 430 nm (tautomer, T),
formed by cyclic double proton transfer plus fast excited state intramolecular proton transfer
(ESIPT), at low temperatures; a vibrational structure also develops which is due to C O and
OH stretches. On red edge excitation (REE), only the dimer-type (UV) emission is observed …
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