Photoinduced Proton Transfer in 2-(2′-Hydroxynaphthalenyl)-benzoxazole: Observation of Fluorescence with a Small Stokes Shift Induced by Excited-State Intramolecular Proton Transfer
Photoinduced Proton Transfer in 2-(2′-Hydroxynaphthalenyl)-benzoxazole: Observation of Fluorescence with a Small Stokes Shift Induced by Excited-State Intramolecular Proton Transfer
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DOI：
10.1246/bcsj.82.118
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发表时间：
2009-01-15
影响因子：
4
通讯作者：
Arai, Tatsuo
中科院分区：
文献类型：
--
作者：
Kanda, Tomoko;Momotake, Atsuya;Arai, Tatsuo
2-（2′-羟萘基）苯并恶唑(1)通过激发态分子内质子转移产生的受激互变异构体（K*）发出具有小斯托克斯位移的荧光。与2-（2′-羟基苯基）苯并恶唑（HBO）和2-（萘-l-基）苯并恶唑(2)作为参比化合物的结果比较，分子内氢键可能是造成这一现象的原因。
2-(2'-Hydroxynaphthalenyl)benzoxazole (1) emits fluorescence with small Stokes shift from its excited tautomer (K*), produced by excited-state intramolecular proton transfer. Intramolecular hydrogen bonding may be responsible for this phenomenon on comparison with the results of 2-(2'-hydroxyphenyl)benzoxazole (HBO) and 2-(naphthalene-l-yl)benzoxazole (2) as a reference Compound.