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J. Phys. Chem. A 2010, 114, 5618–5629
Excited State Intramolecular Proton Transfer and Charge Transfer Dynamics of a 2-(2′-Hydroxyphenyl)benzoxazole Derivative in Solution Chul Hoon Kim,*,† Jaehun Park,‡ Jangwon Seo,§ Soo Young Park,§ and Taiha Joo*,† Department of Chemistry, Pohang UniVersity of Science and Technology, Pohang, 790-784, Korea, Pohang Accelerator Laboratory, Pohang UniVersity of Science and Technology, Pohang, 790-784, Korea, and Center for Supramolecular Optoelectronic Materials and Department of Materials Science and Engineering, Seoul National UniVersity, Seoul, 151-744, Korea ReceiVed: October 1, 2009; ReVised Manuscript ReceiVed: March 29, 2010
Excited state intramolecular proton transfer (ESIPT) and subsequent intramolecular charge transfer (ICT) dynamics of a 2-(2′-hydroxyphenyl)benzoxazole derivative conjugated with an electron withdrawing group (HBOCE) in solutions and a polymer film has been investigated by femtosecond time-resolved fluorescence (TRF) and TRF spectra measurements without the conventional spectral reconstruction method. TRF with high enough resolution (
