Dual recognition of Al³⁺ and Zn²⁺ ions by a novel probe based on diarylethene and its application

Abstract

We synthesized a new fluorescent probe 1O by attaching a diarylethene molecule to a functional group. The probe can be used to detect Al 3+ and Zn 2+ at the same time with high selectivity, and its detection limit is very low. When Al 3+ was added, the fluorescence intensity was increased 310 folds, and was accompanied by a fluorescent color change from black to grass-green. Similarly, after the addition of Zn 2+ , the fluorescence intensity was enhanced 110 folds, with a concomitant color change from black to yellowgreen. Moreover, based on the properties of 1O, we designed a logic circuit, and that also can be used for water sample testing.

Novel pyrazoline and pyrazole “turn on” fluorescent sensors selective for Zn2+/Cd2+ at λem 480 nm and Fe3+/Fe2+ at λem 465 nm in MeCN

“…The above studies were performed in MeCN to aid comparison to previous work which was also carried out in MeCN. Previous exploratory reports for Zn 2+ fluorescent sensors were performed in pure organic solvents also including MeOH, 39,40 THF, 41,42 DMF 43 and DMSO. 44,45 The results within provide a firm foundation for developing aqueous based sensors for lead pyrazole 8 with Zn 2+ and 9 with Fe 3+ , this is ongoing work and will be reported in due course.…”

Achieving Enhanced Photochromic Properties of Diarylethene through Host‐Guest Interaction in Aqueous Solution

“…[1] Diarylethene derivatives (DTEs) stand out among all the photochromic family owing to their fast photoresponsibility, excellent thermal stability, fatigue resistance, high photoreaction quantum yield, as well as considerable photochromic behavior both in solution and solid state. [2] Due to these brilliant properties, DTEs have been widely used in design of sensors and probes, [3] optical data-storage devices, [4] logic gates, [5] and biological imaging. [6] To further make the full use of DTEs, enormous excellent work have been done to improve the photochromic property.…”