title: Fluorescence control on panchromatic spectra via c-alkylation on arylated quinoxalines.
abstract: A coherent green fluorescence was obtained by butylation at the 2-position of panchromatic 2,3-diaryl-5,8-diarylquinoxalines (2) to give corresponding 2-butyl-2,3-diaryl-5,8-diaryl-1H-quinoxalines (3). Full color quinoxaline derivatives (2) were prepared from electronic modification at either the 2,3- or 5,8-positions at the peripheral ArX group or X group (X = -H, -OMe, -NPh(2), -NMe(2), -NMePh) of the quinoxalines. 2-Butylation converted one imine unit of the pyrazine ring to an amine group, which effectively altered the electron donor and acceptor functions to produce a coherent green fluorescence.
authors.affiliation: Department of Materials Chemistry, Sejong Campus, Korea University, Chung-Nam 339-700, South Korea.
authors.forename: Ho-Jin
authors.initials: HJ
authors.lastname: Son
authors.forename: Won-Sik
authors.initials: WS
authors.lastname: Han
authors.forename: Dae-Hwan
authors.initials: DH
authors.lastname: Yoo
authors.forename: Kyoung-Tae
authors.initials: KT
authors.lastname: Min
authors.forename: Soon-Nam
authors.initials: SN
authors.lastname: Kwon
authors.forename: Jaejung
authors.initials: J
authors.lastname: Ko
authors.forename: Sang Ook
authors.initials: SO
authors.lastname: Kang