Fluorescence response of a 4-trifluoroacetylaminophthalimide to iodide ions upon 254 nm irradiation in MeCN.
Fluorescence response of a 4-trifluoroacetylaminophthalimide to iodide ions upon 254 nm irradiation in MeCN.
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DOI：
10.1021/ol801184x
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发表时间：
2008-07
期刊：
影响因子：
5.2
通讯作者：
Hideki Okamoto;H. Konishi;Mami Kohno;K. Satake
中科院分区：
文献类型：
--
作者：
Hideki Okamoto;H. Konishi;Mami Kohno;K. Satake
标题三氟乙酰氨基邻苯二甲酰亚胺衍生物在甲基氰化物中产生紫色荧光(波长392 nm)，在碘离子存在下，在254 nm处发出绿色荧光(波长506 nm)。确定了三氟乙酰胺对应的酰胺化离子为绿色荧光发射体。去质子化反应可能是从I(-)到MeCN的光化学电荷转移到溶剂过程中产生的质子吸收溶剂化电子所引起的。
The title trifluoroacetylaminophthalimide derivative produced a violet fluorescence (lambdaFLmax 392 nm) in MeCN, and it displayed a green emission (lambdaFLmax 506 nm) after irradiation at 254 nm in the presence of iodide ions. The corresponding amidate ion of the trifluoroacetamide was identified as the green fluorescence emitter. The deprotonation reaction may be caused by proton-abstracting solvated electrons generated by a photochemical charge--transfer-to-solvent process from I(-) to MeCN.