Cyclopentadithiazole-based Monomers and Alternating Copolymers
Christof J. Kudla, Daniel Dolfen, Kristina J. Schottler, Jan-Moritz Koenen, Dietrich Breusov, Sybille Allard, Ullrich Scherf, Washington (2010)
7,7-Dialkylated cyclopenta[1,2-d:4,3-d’]dithiazole CPDTz is introduced as a new heteroaromatic building block for conjugated, alternating copolymers of the donor-acceptor type. A first set of such copolymers have been generated in Stille-type aryl-aryl cross couplings. A comparison of corresponding cyclopenta[1,2-d:4,3-d’]dithiazole (CPDTz) and cyclopenta[2,1-b:3,4-b’]dithiophene (CPDT) based alternating copolymers shows the expected HOMO energy downshift for the replacement of thiophene by “less” electron-rich thiazole units. The CPDTz building block may be potentially useful in the fine tuning of the HOMO (and LUMO) energy levels of alternating donor-acceptor copolymers.
Partners : BUW
Place of Publication : Washington
Date of Publication : 2010/08/30
Additional Data : Macromolecules 2010, 43, 7864–7867