A novel fluorescent sensor for diammonium and metal ions based on a supramolecular charge-transfer complex of bis(aza-18-crown-6)-containing dienone

Sergey P. Gromov,Marina V. Fomina, Ilia P. Zdorovenko,Artem N. Fakhrutdinov,Evgeny N. Ushakov

FRONTIERS IN CHEMISTRY（2023）

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Abstract

A bis(aza-18-crown-6)-containing 2,5-di(benzylidene)cyclopentanone and a bis(ammoniopropyl) derivative of 1,2-di(4-pyridyl)ethylene in MeCN were found to form a supramolecular charge-transfer complex, which can act as an "off-on" fluorescent sensor for the Ca2+ and 1,12-dodecanediammonium ions. The molecular structure of this complex in solution was studied by density functional theory calculations.

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Key words

dienones,charge-transfer complexes,fluorescent sensor,NMR spectroscopy,electronic spectroscopy,quantum chemical calculations

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