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Novel Hydrazone‐Based Tripodal Sensors: Single Selective Colorimetric Chemosensor for Acetate in Aqueous Solution
Author(s) -
Zhang Youming,
Li Qiao,
Zhang Qinsheng,
Lin Qi,
Cao Cheng,
Liu Mingxia,
Wei Taibao
Publication year - 2011
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201180275
Subject(s) - chemistry , hydrazone , titration , aqueous solution , selectivity , ion , inorganic chemistry , combinatorial chemistry , medicinal chemistry , organic chemistry , catalysis
Abstract A series of novel tripodal colorimetric anion sensors based on hydrazone CHNNH groups have been synthesized and their recognition behavior with anionic guests has been studied. In DMSO solutions, sensors 1 and 2 show colorimetric responses for F − , H 2 PO − 4 and AcO − , while in DMSO/H 2 O (9:1, V / V ) solutions, sensor 1 shows single selectivity for AcO − . 1 H NMR titration confirms that the tripodal sensors could bind anions through the collaboration of three hydrazone groups and anions residing in the central cavity of the sensors.