Abstract
A new diarylethene containing a pyridinepiperazine-linked hydroxyquinoline group was synthesized. Its multi-controllable switching behaviors induced by light and chemical stimuli were investigated. The diarylethene could be used as a fluorescent probe for the detection of Cd2+ with high selectivity. When triggered by Cd2+, enhanced fluorescence intensity accompanied with color change from light blue to bright blue was observed. In addition, the diarylethene exhibited notable fluorescence enhancement upon the addition of TFA into the solution. Moreover, its fluorescence behaviors in response to light and Cd2+ were applied for the construction of a molecular logic circuit with four inputs and one output.
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