AI Article Synopsis
- A series of quinoidal oligothiophenes with dicyanomethylene groups at both ends were synthesized.
- These structures exhibit amphoteric properties and strong electronic absorption in the visible to near-infrared region.
- Longer versions like quinquethiophene and sexithiophene exist in equilibrium with biradical species.
Article Abstract
A series of highly extensive quinoidal oligothiophenes carrying a dicyanomethylene group at both terminal positions is synthesized. As the quinoidal structures extend, they have highly amphoteric abilities and show strong electronic absorptions in the visible to near-infrared region. The higher homologues, quinquethiophene and sexithiophene, exist as equilibrium mixtures with the biradical species.
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| http://dx.doi.org/10.1021/ja051840m | DOI Listing |
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