Light Emission in Water-Containing Cocrystals: the Influence of Water Molecules on the Fluorescence Properties of a Schiff-Base Molecule
Feng Zhou1, Pengli Tan2, Yong Ma1, Youyong Li2, Najun Li1, Hua Li1, Lihua Wang1, Hongwei Gu1, Qingfeng Xu1,*（徐庆锋）, Jianmei Lu1,*（路建美）
1Key Laboratory of Organic Synthesis of Jiangsu Province, School of Chemistry, Chemical Engineering and Materials, Soochow University, Suzhou, 215123 (China)
2Institute of Functional Nano and Soft Materials, Laboratory (FUNSOM) and
Chem. Asian J. 2014, 9, 223–228.
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 H2O, and a lamellar structure, m-HATT⋅n H2O), 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.
链接： //onlinelibrary.wiley.com/doi/10.1002/asia.201300804/abstract
