Imidazole-based AIEgens for highly sensitive and selective detection of picric acid

Zhang, Yuzhu; Tang, Fang; He, Xuan; Wang, Chengyuan; Kong, Lin; Yang, Jiaxiang; Ding, Aixiang

doi:10.1039/d2ce00953f

Cited by 7 publications

(2 citation statements)

References 69 publications

(80 reference statements)

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“…The cyanostilbene units with imidazole substitution ( 27 and 28 ; Figure 7 ) containing α-cyanostilbene units were utilized to detect explosives such as picric acid (PA). 35 The designed and synthesized molecules possess a D–π–A structure, with -CN and imidazole units acting as electron-withdrawing units, while diphenylamino acts as an electron-donating group. The D–π–A design gives ICT characteristics to the molecule with wavelength shifts from 494 nm in toluene to 548 nm in DMF.…”

Section: Introductionmentioning

confidence: 99%

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Functional α-Cyanostilbenes: Sensing to Imaging

Dahiwadkar

Kaloo

Kanvah³

2023

Synlett

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In recent years, there has been considerable interest in cyanostilbenes due to their unique photophysical properties. The compounds emit light when aggregating, commonly called aggregation-induced emission (AIE). This remarkable feature makes cyanostilbenes ideal for various sensing applications, especially in aqueous environments. The detection of various analytes, such as metal ions and nitroaromatic compounds, has been accomplished using these compounds through various sensing mechanisms from chelation-enhanced fluorescence to fluorescence quenching. Furthermore, cyanostilbenes have shown great promise in biological imaging applications and have been employed for intracellular imaging, tracking, and targeting of sub-cellular organelles. The development and utilization of cyanostilbenes can significantly impact advancing sensing and imaging technologies in both analytical and biological fields. This potential stems from the unique properties of cyanostilbenes, such as their AIE characteristic, which sets them apart from other compounds and makes them highly useful for various applications. Further exploration and development of cyanostilbenes could lead to the creation of novel sensing and imaging technologies with wide-ranging applications in both academic and industrial settings

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Section: Introductionmentioning

confidence: 99%

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confidence: 99%

Functional α-Cyanostilbenes: Sensing to Imaging

Dahiwadkar

Kaloo

Kanvah³

2023

Synlett

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Conjugating Coumarin with Tetraphenylethylene to Achieve Dual‐State Emission for Reversible Mechanofluorochromism and Live Cell Imaging

Huang

Ding

Yang

et al. 2023

Chemistry A European J

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Dual‐state emission luminogens (DSEgens) are receiving research interest in the construction of multifunctional materials due to their inherent advantage of high emission efficiency in both the molecularly dispersed solution state and the solid state. However, it remains challenging in synthesizing DSEgens via a delicate manipulation of the molecular structures. This work presents an example of bright DSEgen synthesis by tuning the molecular electronic structures and conformations. Three coumarin‐tetraphenylethylene (TPE) molecules with a donor‐acceptor electronic structure and highly twisting conformations have been synthesized. While compound resulting from direct conjugation of coumarin with a TPE unit shows aggregation‐induced emission, compound with an N,N‐diaminoethyl modification on the 7‐position of coumarin and compound with a further phenyl linker between coumarin and TPE units feature strong dual‐state emission. Benefiting from their strong solid emission and twisting conformations, these fluorophores display reversible mechanofluorochromism. Finally, applications for rewritable information storage in the solid state and live‐cell imaging in the solution state were demonstrated.

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Fluorescence properties of stable porous Zr(IV)-metal-organic framework based on fluorescent imidazolate-ligand

Xie

Zhong

et al. 2023

Inorganic Chemistry Communications

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Imidazole-based AIEgens for highly sensitive and selective detection of picric acid

Abstract: Imidazole is an important heterocyclic motif and its derivatives are widely used in many fields such as catalysis, medicine, and smart sensors. Here we report the synthesis of four imidazole...

Cited by 7 publications

References 69 publications

Functional α-Cyanostilbenes: Sensing to Imaging

Functional α-Cyanostilbenes: Sensing to Imaging

Conjugating Coumarin with Tetraphenylethylene to Achieve Dual‐State Emission for Reversible Mechanofluorochromism and Live Cell Imaging

Fluorescence properties of stable porous Zr(IV)-metal-organic framework based on fluorescent imidazolate-ligand

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