Solid state thiazole-based fluorophores: Promising materials for white organic light emitting devices
作者:Kumar Godugu、Sultana Shaik、Mohammad Khaja Mohinuddin Pinjari、Trivikram Reddy Gundala、Dwaraka Viswanath Chellappa Subramanyam、Subramanyam Sarma Loka、Haranath Divi、Vemula Venkatramu、Chinna Gangi Reddy Nallagondu
DOI:10.1016/j.dyepig.2020.109077
日期:2021.3
solid state white light emissive thiazole-based donor-acceptor (D-A) type fluorophores, 2-(3-pyridyl)/2-aminothiazoles from ω-bromomethylketones and pyridine-3-carbothioamide/thiourea in the presence of silica-supported HClO4 as a reusable solid Brønsted acid catalyst at RT. The photophysical and electrochemical properties of these compounds have been derived. Most of the studied D-A type solid thiazole-based
已开发出一种简便且更有效的无溶剂机械化学合成路线,用于合成一系列固态白光发射的噻唑基供体-受体(DA)型荧光团,2-(3-吡啶基)/ 2-氨基噻唑在室温下,作为可重复使用的固体布朗斯台德酸催化剂,在二氧化硅负载的HClO 4存在下,ω-溴甲基酮和吡啶-3-碳硫酰胺/硫脲。已经推导了这些化合物的光物理和电化学性质。大多数研究过的DA型基于噻唑的固体荧光团都发出白光,并且可以通过在第4个引入各种取代基从温暖的(理想的)冷的白光进行调谐。2-(3-吡啶基)/ 2-氨基噻唑的位置。此外,发现标题化合物的HOMO和LUMO能级分别在-5.52eV至-5.72eV和-1.84eV至-2.45eV的范围内。这些水平的噻唑基荧光团的寿命已通过发光衰减曲线确定,发现范围为7.7–11μs。合成的噻唑基荧光团的光物理和电化学性质表明,该化合物可能是用于白色有机发光器件的有前途的材料。