%0 Journal Article %A Pu, Shouzhi %A Ding, Haichang %A Liu, Gang %A Zheng, Chunhong %A Xu, Hongyan %D 2014 %T Multiaddressing Fluorescence Switch Based on a New Photochromic Diarylethene with a Triazole-Linked Rhodamine B Unit %U https://acs.figshare.com/articles/journal_contribution/Multiaddressing_Fluorescence_Switch_Based_on_a_New_Photochromic_Diarylethene_with_a_Triazole_Linked_Rhodamine_B_Unit/2309632 %R 10.1021/jp5001495.s001 %2 https://ndownloader.figshare.com/files/3947260 %K New Photochromic Diarylethene %K proton %K Multiaddressing Fluorescence Switch %K rhodamine %K acetonitrile %K metal ions %K fluorescence change %K diarylethene %X A novel diarylethene with a triazole-linked rhodamine B unit has been synthesized by click chemistry. When triggered by light, proton, and metal ions, the diarylethene can be used as a fluorescence switch, leading to a multiaddressable system. The diarylethene shows sequence-dependent responses through efficient interaction of the specific triazole-linked rhodamine B unit with proton and metal ions. Furthermore, the diarylethene can serve as a naked-eye chemosensor for highly selective recognition of different metal ions in different solvent systems. The diarylethene was highly selective toward Al3+ with remarkable fluorescence change from dark to yellow in acetonitrile, while it selectively recognized Cu2+ with significant fluorescence change from dark to bright yellow in the mixture of acetonitrile and water (v/v = 4/6). Finally, a logic circuit was constructed with the unimolecular platform by using the combinational stimuli of light and chemical species as inputs and the fluorescence intensity at 595 nm as output. %I ACS Publications