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Oligothiophenes donor/acceptor-substituted

F. Effenberger, F. WUrthner and F. Steybe, Synthesis and solvatochromic properties of donor-acceptor-substituted oligothiophenes, J. Org. Chem., 60, 2082-2091 (1995). [Pg.138]

F. Steybe, F. Effenberger, U. Gubler, C. Bosshard and P. Gunter, Highly polarizable chromophores for nonlinear optics syntheses, structures and properties of donor-acceptor substituted thiophenes and oligothiophenes. [Pg.138]

Thiophene-containing D-A-substituted jt-systems have been extensively studied in relation to their application in organic electronics. Nonlinear optical (NLO) measurements of such push-pull systems showed enhanced second-order polarizabilities (P) compared with the phenyl counterparts. These increased nonlinearities were attributed to the partial decrease in the aromatic character and increased n-overlap between the thiophene units. Various electron donors (-NR2, -OMe, -SMe) and acceptors (-NO2, -CHO, -S02Me, -CN) have been introduced into the oligothiophene backbone, not only to study the electron and energy transfer processes, but also because of their prospects as active molecules in electronic devices. The... [Pg.24]

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1.4- donor-substituted

Oligothiophene

Oligothiophenes

Substituted oligothiophenes

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