W. Shi, Yabin Chen, Xin Chen
Jun 1, 2016
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Influential Citations
35
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Journal
Journal of Luminescence
Abstract
Abstract A type of simple-structured, hydrazinecarbothioamide-containing Schiff-base derivative, 2-(4-(diphenylamino)benzylidene)hydrazinecarbothioamide (M1) , was synthesized through condensation reaction between 4-(diphenylamino)benzaldehyde and thiosemicarbazide. In the mixture of DMSO/H 2 O (DMSO/H 2 O=9:1(v:v), pH=4.5), distinct “turn-off” fluorescence alterations of M1 were observed upon the addition of Hg 2+ , and the addition of Ag + induced fluorescence bathochromic shift. The detection limits of Hg 2+ and Ag + reach~0.19 μM and ~0.59 μM, respectively, as evaluated by the detailed fluorescence response of M1 toward incremental target ions. The different extent of photo-induced electron transfer (PET) between M1 and these two ions might be the plausible reason for such different optical response behaviors.