Oligo(octithienylene-diethynylene)s as unprecedentedly long conjugated nanomolecules.
[reaction: see text] A series of oligo(octithienylene-diethynylene)s alternately composed of octithiophene and diacetylene units have been prepared by a random Eglinton coupling reaction among mono- and diethynyloctithiophenes. The largest compound isolated in the oligomeric series is comprised of twelve octithiophene units and eleven diacetylene units, and its molecular length reaches ca. 43 nm, which is the longest among single-component conjugated nanomolecules.
Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan.
Kiyofumi
K
Inouchi
Seiji
S
Kobashi
Kazuo
K
Takimiya
Yoshio
Y
Aso
Tetsuo
T
Otsubo