Enhancement of Fluorescence Emission Intensity in a Sulfonyl Hydrazide Derivative of tri(biphenyl‐4‐yl)amine via Solid‐state Grinding with Various Metal Salts: Combined Experimental and Computational Studies

نویسندگان

چکیده

Abstract Solid‐state fluorescent materials are in huge demand owing to their potential applications sensors, imaging, and LEDs. The molecular aggregations the solid state limit usage practical applications. Typically, J‐aggregates show enhanced emission, while H‐aggregates quenching state. Few supramolecular approaches (like creating hydrogen bonds) were developed disturb π–π other interactions solid‐state H‐aggregates. Herein, we reporting a p ‐toulenesulfonyl hydrazide derivative of tri(biphenyl‐4‐yl)amine (TBA‐THZ) showed negligible emission grinding with M + X − (M =alkali alkali earth metal) salts emission. Existing disturbed by dipole‐ion between S=O⋅⋅⋅M . micro/nanometer‐sized salt crystal particles serve as templates for TBA‐THZ molecules, broad sense, surfaces act “solid‐state solvent.” ground various metal varied intensities; BaCl 2 ⋅ 2H O sample exhibited maximum intensity. KPF 6 +18‐Crown‐6 84 times than pristine TBA‐THZ. role 18‐crown‐6 ether was observed donor type K ions. expected S=O⋅⋅⋅K elucidated through FT‐IR computational modelling. slight change wavelength higher side after indicates that might slightly modify chromophore's electronic structure, encouraging radiative decay In contrast, similar molecule, TBA‐PH, no sulfonyl functional group, silent TBA‐PH has significant even salts. capacity salt‐ground powder remained unchanged at temperatures highly humid environment. active matrix responded admirably HCl acid fumes regenerated upon exposure ammonia vapours.

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ژورنال

عنوان ژورنال: ChemistrySelect

سال: 2023

ISSN: ['2365-6549']

DOI: https://doi.org/10.1002/slct.202301601