Synthesis of a Phenylhydrazone-based Colorimetric Anion Sensor with Complementary IMP/INH Logic Functions  

作　　者：韦科 熊碧 周娜娜 蔡苹 胡锴 程功臻 

机构地区：[1]College of Chemistry and Molecular Sciences,Wuhan University,Wuhan,Hubei 430072,China

出　　处：《Chinese Journal of Chemistry》2012年第8期1702-1708,共7页中国化学（英文版）

摘　　要：A dinitrophenyl hydrazone colorimetric anion sensor （receptor 1） was synthesized and its recognition properties towards various anions were investigated by naked eye observation and spectroscopic methods, namely UV-vis and 1H NMR titrations in DMSO. The addition of AcO？, F？ and H2PO4？ to receptor 1 resulted in marked red shift of the charge-transfer absorbance band （Δλ=91 nm, 407 nm to 498 nm） concomitant with a ＇naked-eye＇ detectable colour change from yellow to pink. However, both the colour and spectral changes were reversible by the addition of cations （MII） of 3d5-10 as well as CdII, HgII, MgII and CaII. Subsequently, complementary IMP/INH logic functions based on colour and spectral switching （ON/OFF） were affirmed. The sensor can, thus be utilized as a colorimetric molecular switch modulated by F？/MII.A dinitrophenyl hydrazone colorimetric anion sensor （receptor 1） was synthesized and its recognition properties towards various anions were investigated by naked eye observation and spectroscopic methods, namely UV-vis and 1H NMR titrations in DMSO. The addition of AcO？, F？ and H2PO4？ to receptor 1 resulted in marked red shift of the charge-transfer absorbance band （Δλ=91 nm, 407 nm to 498 nm） concomitant with a ＇naked-eye＇ detectable colour change from yellow to pink. However, both the colour and spectral changes were reversible by the addition of cations （MII） of 3d5-10 as well as CdII, HgII, MgII and CaII. Subsequently, complementary IMP/INH logic functions based on colour and spectral switching （ON/OFF） were affirmed. The sensor can, thus be utilized as a colorimetric molecular switch modulated by F？/MII.

关 键 词：colorimetric sensor hydrazone anion recognition logic function 

分 类 号：O436.1[机械工程—光学工程] TP212[理学—光学]