Alpha,omega-bis(quinquethienyl)alkanes as a pi-dimer model of polythiophene.
[structure: see text] A series of the title dimeric quinquethiophenes linked with a di- to hexamethylene spacer was synthesized and examined as a pi-dimer model of polythiophene. Upon two-electron oxidation with iron(III) chloride in dichloromethane, they readily form intramolecular pi-dimer species, except for the dimethylene-linked dimer that cannot be bent into a pi-stacked structure.
Satou
Teizi
T
Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan.
Sakai
Toyofumi
T
Kaikawa
Takeshi
T
Takimiya
Kazuo
K
Otsubo
Tetsuo
T
Aso
Yoshio
Y