Synthesis, characterization and photophysical properties of ESIPT reactive triazine derivatives

Journal of the Brazilian Chemical Society

Kuplich, Marcelo D.¹  Rodembusch, Fabiano S.¹  Grasel, Fábio S.¹  Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil¹  Stefani, Valter¹  Campo, Leandra F.¹ 

关键词: triazine;    benzazoles;    cyanuric chloride;    ESIPT;    reactive dyes;    cellulose;   

DOI  :  10.1590/S0103-50532012000100005

学科分类：化学（综合）

来源: SciELO

【 摘 要 】

Four new reactive fluorescent triazine derivatives were obtained from nucleophilic aromatic substitution of cyanuric chloride. The compounds were characterized by infrared spectroscopy (IR), nuclear magnetic resonance (13C and 1H NMR) and high resolution mass spectrometry (HRMS MALDI). UV-Vis and steady-state fluorescence (in solution and in solid state) spectroscopies were also applied to characterize the photophysical behavior. The dyes are fluorescent by an intramolecular proton transfer mechanism (ESIPT) in the blue-orange region, with a large Stokes shift between 6365-10290 cm-1. The fluorescent cyanuric derivatives could successfully react with cellulose fibers to give new fluorescent cellulosic materials.

【 授权许可】

Unknown