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Extended Fluorescence Quenching Analysis as a Remote Probe of Non‐Emissive Exciplexes
Author(s) -
Chow Yuan L.,
Johansson Carl I.
Publication year - 1993
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.199300086
Subject(s) - excimer , chemistry , fluorescence , quenching (fluorescence) , reaction rate constant , photochemistry , excited state , singlet state , atomic physics , kinetics , optics , physics , quantum mechanics
Extended fluorescence quenching analysis is demonstrated to be an efficient steady‐state method to evaluate the exciplex (excimer) rate constants under certain conditions. This method is attractive as the monitor of only fluorescence of the exciplex's precursor is required for a complete analysis, regardless whether or not the exciplex. Using the interaction of methyl 2‐naphlhoate in its singlet excited state with H 2 S0 4 as a kinetic model, for which all the rate constants are known, this method is described and shown to reproduce accurately these rate constants. Limitations and applications of this method are discussed.