Insight into the Amino-Type Excited-State ... - ACS Publications

Feb 8, 2016 - Both TA and TSLIF results indicate the existence of a long-lived trans-tautomer species in the ground state with a lifetime of few micro...
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Article pubs.acs.org/JPCA

Insight into the Amino-Type Excited-State Intramolecular Proton Transfer Cycle Using N‑Tosyl Derivatives of 2‑(2′Aminophenyl)benzothiazole Chi-Lin Chen,† Huan-Wei Tseng,† Yi-An Chen,† Jun-Qi Liu,‡ Chi-Min Chao,*,‡,‡ Kuan-Miao Liu,*,‡,‡ Tzu-Chieh Lin,† Cheng-Hsien Hung,‡ Yen-Lin Chou,‡ Ta-Chun Lin,‡ and Pi-Tai Chou*,† †

Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan School of Medical Applied Chemistry, Chung Shan Medical University, Taichung 40201, Taiwan ‡ Department of Medical Education, Chung Shan Medical University, Taichung 40201, Taiwan ‡

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ABSTRACT: Studies have been carried out to gain insight in to an overall excitedstate proton transfer cycle for a series of N-tosyl derivatives of 2-(2′-aminophenyl)benzothiazole. The results indicate that followed by ultrafast (