81924-79-0Relevant academic research and scientific papers
Synthesis, structure, and UV-VIS absorption spectra of azo dyes derived from (dialkylamino)thiazole dimers
Kim, Jae Joon,Funabiki, Kazumasa,Muramatsu, Hiroshige,Shibata, Katsuyoshi,Kim, Sung Hoon,Shiozaki, Hisayoshi,Hartmann, Horst,Matsui, Masaki
, p. 379 - 387 (2007/10/03)
(Dialkylamino)thiazole dimers act as very strong electron-donating coupling components in azo dyes, the first and second UV-VIS absorption bands of which were observed at λ = 568-737 (ε = 24000-88000) and 404-475 (ε = 9200-52000) nm in dichloromethane, respectively. The azo compounds derived from the (dialkylamino)thiazole dimers having very strong electron-withdrawing moieties such as 4-(perfluoroalkylsulfonyl)phenyls, 2,4-dinitrophenyl, and thiazol-2-yls exhibited a negative solvatochromism. This is the first example of a negative solvatochromism in neutral azo dyes.
Synthesis of azo chromophores containing a perfluorocyclo-alkenyl moiety and their second-order optical nonlinearity
Matsui, Masaki,Tsuge, Michinori,Funabiki, Kazumasa,Shibata, Katsuyoshi,Muramatsu, Hiroshige,Hirota, Kazuo,Hosoda, Masahiro,Tai, Kazuo,Shiozaki, Hisayoshi,Kim, Misa,Nakatsu, Kazumi
, p. 207 - 212 (2007/10/03)
1,2-Bis[4-[4-[N-ethyl-N-(2-hydroxyethyl)amino]phenylazo]phenylthio] perfluorocyclopentene, having two independent intramolecular push-pull chromophores in a molecule, showed the highest second-order nonlinear coefficient (d33) among the cyclobutenyl, -pentenyl, -hexenyl, and cyclopentenyl nitro derivatives in both doped poly(methyl methacrylate) (PMMA) and polycarbonate (PC).
