Effect of the Ortho Alkylation of Perylene Bisimides on the Alignment and Self‐Assembly Properties. Issue 4 (9th July 2014)

• Record Type: Journal Article
• Authors: Dasgupta, Debarshi; Kendhale, Amol M.; Debije, Michael G.; ter Schiphorst, Jeroen; Shishmanova, Ivelina. K.; Portale, Giuseppe; Schenning, Albertus P. H. J.
• Is Part Of: ChemistryOpen. Volume 3:Issue 4(2014:Aug.)
• Page Start: 138
• Page End: 141
• Publication Date: 2014-07-09
• Subjects: Chemistry -- Periodicals; 540; 540.5
• DOI: 10.1002/open.201402011
• Languages: English
• ISSNs: 2191-1363

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>The effect of the <italic>ortho</italic> alkylation of perylene bisimides on the alignment and self‐assembly properties has been studied. It was found that the dichroic properties of perylene bisimides in a liquid crystal host can be reversed with a single synthetic step by <italic>ortho</italic> alkylation. Furthermore, a solvent‐induced growth of ultralong organic n‐type semiconducting fibrils from non‐<italic>ortho</italic>‐alkylated perylene bisimide was observed. <italic>Ortho</italic> substitution of the perylene bisimide core alters the mode of fibrillar growth, leading to isotropic crystallization.</p> </abstract>