A colorimetric fluorescent sensor for Cr3+ based on a novel diarylethene with a naphthalimide-rhodamine B group

作者：Xue, Dandan; Zheng, Chunhong; Fan, Congbin; Liu, Gang; Pu, Shouzhi^*

来源：Journal of Photochemistry and Photobiology A: Chemistry , 2015, 303: 59-66.

DOI：10.1016/j.jphotochem.2015.02.006

• Photochromism
• Diarylethene
• Naphthalimide
• Rhodamine B
• Fluorescent chemosensor
• Logic circuit

A novel photochromic diarylethene with a 1,8-naphthalimide-rhodamine B unit has been synthesized and its photochemical properties were systematically studied. The diarylethene can effectively respond to the stimuli of light, proton, and specific metal ions. When triggered by Cr3+, strong fluorescence was observed at 603 nm due to the opening of the rhodamine B moiety, accompanied with a color change from colorless to purple. The result indicated that the diarylethene could act as a colorimetric fluorescent sensor for Cr3+ in acetonitrile. Moreover, a logic circuit was constructed by using the combinational stimuli of UV/vis and Cr3+/EDTA as inputs and the fluorescence intensity at 603 nm as output.

• 出版日期2015-4-15