Sung-Hoon Kim, Jang-Hyun Ryu, Heung-Jin Choi
Mar 1, 2005
Citations
0
Influential Citations
10
Citations
Journal
Dyes and Pigments
Abstract
Abstract New fluorophores ( 5 – 7 ) having triphenylamine were obtained by condensation between 2,3,3-trimethylindolenine 2 , 2-methylbenzoxazole 3 , quinaldine 4 and 4-diphenylamino-benzaldehyde 1 using a catalytic amount of benzyltriethylammonium chloride (BTEA) as a phase-transfer catalyst. The electrochromic properties of compounds 5 – 7 were studied by using a propylenecarbonate solution with Bu 4 NClO 4 as supporting electrolyte. The electrochromic cells changed in colour to bluish-red or blue at an applied voltage of 2.2–2.5 V.