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Merck

Pi-dimer formation in an oligothiophene tweezer molecule.

Organic letters (2008-10-09)
Ryo Takita, Changsik Song, Timothy M Swager
ABSTRAKT

An oligothiophene tweezer molecule, which has two quaterthiophene moieties connected to create an electrochemically activated hinge, has been synthesized. Two-electron oxidation of the tweezer molecule produces an intramolecular pi-dimer between the two oligothiophene moieties at room temperature as confirmed by UV-vis absorption, electrochemistry, and EPR experiments.

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Sigma-Aldrich
4,5-Dibromo-2,7-di-tert-butyl-9,9-dimethylxanthene, 97%