Probing the supramolecular assembly in solid, solution and gel phase in uriede based thiazole derivatives and its potential application as iodide ion sensor

Patel, Ajaykumar Manibhai; Ray, Debes; Aswal, Vinod K.; Ballabh, Amar

doi:10.1016/j.molliq.2022.119763

Cited by 8 publications

(1 citation statement)

References 55 publications

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“…To date, a variety of materials have been reported for detecting and tracking I − [20][21][22][23][24]. It is still necessary for synthetic chemists to develop probes with novel modes of action despite impressive advances in these probes due to limitations such as the high determination limit and low sensitivity of these probes.…”

Section: Introductionmentioning

confidence: 99%

A Novel Fluorescence Sensor for Iodide Detection Based on the 1,3-Diaryl Pyrazole Unit with AIE and Mechanochromic Fluorescence Behavior

Deng,

Xiong,

Liu

et al. 2023

Molecules

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A D−A type of luminophore, TPA-CDP, was designed and synthesized by using triphenylamine (TPA) as D (electron donor), 1,3-diaryl pyrazole with cyano groups (CDP) as A (electron acceptor) and employing a cyanovinyl segment as a recognition group. Firstly, TPA-CDP demonstrates effective fluorescence quenching as a sensor for I− by the nucleophilic addition reaction of the cyanovinyl segment with a high level of sensitivity, selectivity and a low determination limit of 4.43 μM. Interestingly, TPA-CDP exhibited an AIE phenomenon with the fw value reaching 50%. In addition, TPA-CDP displayed distinct mechanochromic fluorescence behavior with 70 nm red shift, which was observed over four repeated cycles. Furthermore, the mechanochromic fluorescence behavior of TPA-CDP, as observed in powder XRD experiments, was found to be associated with the morphological transition from a crystalline state to an amorphous state. These results confirm the significant potential of CDP as a powerful electron-deficient component in the creation of D−A-type mechanochromic fluorescence materials and biosensors for detecting I−.

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