Light emission in water-containing cocrystals: the influence of water molecules on the fluorescence properties of a schiff-base molecule.

TitleLight emission in water-containing cocrystals: the influence of water molecules on the fluorescence properties of a schiff-base molecule.
Publication TypeJournal Article
Year of Publication2014
AuthorsZhou F, Tan P, Ma Y, Li Y, Li N, Li H, Wang L, Gu H, Xu Q, Lu J
JournalChemistry, an Asian journal
Volume9
Issue1
Pagination223-8
Date Published2014 Jan
Abstract

In the presence or absence of water, a Schiff-base compound, 4-amino-3-(2-(2-hydroxybenzylidene)hydrazinyl)-1H-1,2,4-triazole-5(4H)-thione (HATT), forms different crystalline states (HATT, HATT⋅2 H2 O, and a lamellar structure, m-HATT⋅n H2 O), which show different luminescence emission properties. Herein, we investigate the emission of HATT and the role of water molecules. A water molecule, which acts as both a hydrogen-bond acceptor and -donor, enlarges the distance between adjacent HATT molecules and hinders non-radiative decay pathways.

DOI10.1371/journal.pone.0076614
Alternate JournalChem Asian J