Photodynamics of a Proton-Transfer Dye in Solutions and Confined

Jul 24, 2014 - When HBO is interacting with NaX and NaY, the twisting motion is canceled, ... HBO anions within the faujasite framework also show a âˆ...
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Article pubs.acs.org/JPCC

Photodynamics of a Proton-Transfer Dye in Solutions and Confined Within NaX and NaY Zeolites Noemí Alarcos, Boiko Cohen, and Abderrazzak Douhal* Departamento de Química Física, Facultad de Ciencias Ambientales y Bioquímica, and INAMOL, Universidad de Castilla-La Mancha, Avenida Carlos III, S.N., 45071 Toledo, Spain S Supporting Information *

ABSTRACT: We report on steady-state, picosecond, and femtosecond time-resolved emission studies of 2-(2′hydroxyphenyl)benzoxazole (HBO) in solutions and interacting with NaX and NaY zeolites. In solutions, an ultrafast (