THE DIFFERENT RECOGNITION MECHANISM OF CARBAZOLE DERIVATIVES FOR BIOLOGICAL IMPORTANT ANION: THEORY AND EXPERIMENT

Two fluorescent anion sensors bearing phenol, carbazole-NH and -NO2 group were designed and synthesized. They both exhibited highly binding ability for H2PO4- among the anions tested. In the presence of H2PO4-, the fluorescence of the sensors underwent a dramatic enhancement, while the presence of other anions such as F-, AcO-, Cl-, Br-, and I-, had weak or no effect on the fluorescence. The determination limit of two sensors (1 and 2) toward H2PO4- were 3.0x10-7 and 5.0x10-7 molˑL-1, respectively. Theoretical investigation indicated it was the highest HOMO to induce the red-shift phenomena of two sensors.

Bibliographic Details

Main Authors:	SHANG,XUEFANG, WU,HONGWEI, JIA,SHENYU, HAN,JIE, LIU,YUN, YIN,ZHENYA, QIN,XIAOJIAO, ZHANG,JINLIAN, XU,XIUFANG
Format:	Digital revista
Language:	English
Published:	Sociedad Chilena de Química 2013
Online Access:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072013000300015
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