Fluorescent probe for Zn2+ with light-harvesting pyrenyl groups: sensitization via intramolecular energy transfer |
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| Authors: | Hitoshi Shirase Yukie Mori Yutaka Fukuda Masanobu Uchiyama |
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| Affiliation: | (1) Nichiyu Giken Kogyo Co. Ltd, 21-2 Matobashinmachi, Kawagoe-shi, Saitama 350-1107, Japan;(2) Department of Chemistry, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan;(3) RIKEN, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan; |
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| Abstract: | Abstract Bis[N-(1-pyrenylmethyl)salicylideneaminato]zinc(II) emits intense fluorescence on excitation of the pyrenyl group. This fluorescence originates from the excited state of the salicylideneamine moiety, indicating that efficient intramolecular energy transfer takes place. The occurrence of such efficient energy transfer is accounted for by significant spectral overlap between the emission from the S1 state of the pyrenyl group and the absorption of the salicylideneamine–zinc complex. |
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