Synthesis and characterization of radial oligothiophenes: a new class of thiophene-based conjugated homologues.
[structure: see text] A series of thiophene-based homologues with an aromatic core surrounded by terthiophene "arms" with acetylene linkages has been synthesized by using Sonogashira coupling methods. The homologues were investigated spectroscopically in solution and in the solid state. They display extended pi-conjugation through the aromatic core that affects the strong emission and redox properties.
Pappenfus
Ted M
TM
Department of Chemistry, University of Minnesota, Minneapolis 55455, USA.
Mann
Kent R
KR