The first examples of negative solvatochromism in neutral azo dyes containing both strongly electron-donating bis(dialkylamino) thiazolyl and electron-withdrawing 4-(trifluoromethylsulfonyl) phenyl or 2-thiazolyl moieties are reported.
机构:
Fac Sci, Dept Chem, POB 80203, Jeddah 21589, Saudi Arabia
Univ Khartoum, Dept Chem, Fac Sci, POB 321, Khartoum 11111, SudanFac Sci, Dept Chem, POB 80203, Jeddah 21589, Saudi Arabia