Recognition of Carboxylate Anions and Carboxylic Acids by Selenium-Based New Chromogenic Fluorescent Sensor: A Remarkable Fluorescence Enhancement of Hindered Carboxylates
作者:Shyamaprosad Goswami、Anita Hazra、Rinku Chakrabarty、Hoong-Kun Fun
DOI:10.1021/ol901737s
日期:2009.10.1
new fluorescence sensor 5-pivaloylamino-1,2,5-selenodiazolo[3,4-d]pyrimidin-7-(6H)-one (receptor 1) has been reported for the recognition of monocarboxylic acids and carboxylate anions both by UV−vis and fluorescence methods. Receptor 1 recognizes carboxylate anions more than monocarboxylic acids and it is a selective sensor for carboxylates with specially hindered carboxylate anions. The changes of
据报道,基于硒金属的新型荧光传感器5-新戊酰氨基-1,2,5-硒代二氮杂[3,4- d ]嘧啶-7-(6 H)-one(受体1)可识别单羧酸和通过UV-vis和荧光方法均可羧酸化阴离子。受体1比单羧酸更能识别羧酸根阴离子,它是具有特殊受阻羧酸根阴离子的羧酸根的选择性传感器。在庞大的羧酸根阴离子存在下,荧光强度的变化随着红移而显着增强。已经报道了具有新戊酸的受体1的X射线晶体结构。
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