Dyes and Pigments (2021)
Update date:2022-07-31
Topics:
Chellappa Subramanyam, Dwaraka Viswanath
Divi, Haranath
Godugu, Kumar
Gundala, Trivikram Reddy
Loka, Subramanyam Sarma
Mohinuddin Pinjari, Mohammad Khaja
Reddy Nallagondu, Chinna Gangi
Shaik, Sultana
Vemula, Venkatramu
A facile and more efficient solvent-free mechanochemical synthetic route has been developed for the synthesis of a series of 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 Br?nsted 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 fluorophores emitted white light and it can be tuned from warm - ideal - cold white light by introduction of a variety of substituents at 4th position of 2-(3-pyridyl)/2-aminothiazoles. Further, HOMO and LUMO energy levels of the titled compounds are found to be in the range ?5.52 eV to ?5.72 eV and ?1.84 eV to ?2.45 eV, respectively. The lifetimes of these levels of thiazole-based fluorophores have been determined through luminescence decay curves and are found to be in the range of 7.7–11 μs. The photophysical and electrochemical properties of the synthesized thiazole-based fluorophores indicate that the compounds could be promising materials for white organic light emitting devices.
View MoreShanghai Bocimed Pharmaceutical Co., Ltd.
website:http://www.bocimed.com
Contact:+86-21-68861632
Address:Building 1, Lane 647, Songtao Road, Zhangjiang High-Tech Park, Shanghai
Zouping Mingxing Chemical Co.,Ltd.
website:http://www.zoutong.com.cn
Contact:86-543-2240068 2240067
Address:428 Daixi Third Road Zouping County Shandong Province China
Hangzhou Zyter Biological & Chemical Technology Co., Ltd.
website:http://www.zyterpharm.com
Contact:+86-18858184290
Address:West Wenyi Road, Cangqian, Yuhang
Xiamen XM-Innovation Chemical Co., Ltd
Contact:+86-592-3216205
Address:Unit Q, 11/F, No.1 Office Building, Wuyuan Bay Business Center, Huli District, Xiamen City, Fujian Province, P.R.C
Fujian Huitian Biological Pharmacy Co., Ltd.
Contact:0086-598-8300831; 8339920
Address:No.46,Taijiang Road,Sanming City,Fujian,China
Doi:10.1016/S0968-0896(00)00126-7
(2000)Doi:10.1016/S0040-4020(01)82138-4
(1966)Doi:10.3389/fncir.2016.00031
(2016)Doi:10.1007/s11426-013-4838-4
(2013)Doi:10.1021/es990445r
(2000)Doi:10.1016/S0040-4039(03)00126-6
(2003)