1020003-18-2Relevant articles and documents
Reduced band gap dithieno[3,2-b:2',3',-d]pyrroles: New n-type organic materials via unexpected reactivity
Pappenfus, Ted M.,Hermanson, Bethany J.,Helland, Tyler J.,Lee, Garett G. W.,Drew, Steven M.,Mann, Kent R.,McGee, Kari A.,Rasmussen, Seth C.
, p. 1553 - 1556 (2008)
Direct addition of tetracyanoethylene to W-(p-hexylphenyl)dithieno[3,2-b: 2,3-d]pyrrole yields not only the aromatic mono- and bis-tricyanovinyl-substituted products but also a quinoidal product with dicyanomethylene groups. The analogous reaction with dithieno[3,2-b:2, 3-d]thiophene yields exclusively the aromatic mono-tricyanovinyl product. The aromatic and quinoidal products possess red-shifted absorptions, increased electron affinities, and favorable π stacking motifs in comparison to the unsubstituted oligomers.
