Excitation wavelength-dependent multi-coloured and white-light emissive pyrene-based hydrazones: suppression of Kasha's rule.

Autor: M, Naveen Kumar, Lyngkhoi, Deikrisha Lyngdoh, Gaikwad, Sudhakar, Samanta, Jayanta, Ahamed, Rafiq, Khatua, Snehadrinarayan, Pramanik, Susnata
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Zdroj: Chemical Communications; 12/11/2023, Vol. 59 Issue 95, p14122-14125, 4p
Abstrakt: Multi-coloured and white-light emissions from pyrene-based hydrazones are described. They exhibit excitation wavelength-dependent emissions in solution due to the suppression of Kasha's rule. Interestingly, in dimethylformamide, 1–3 emit light that covers all the regions of primary colours as a function of excitation wavelength, and 1 and 2 emit white light (λex = 420 nm) in isopropanol. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index