Effect of the Ortho Alkylation of Perylene Bisimides on the Alignment and Self‐Assembly Properties

ChemistryOpen

Dr. Debarshi Dasgupta¹  Dr. Amol M. Kendhale¹  Dr. Michael G. Debije¹  Jeroen ter Schiphorst¹  Dr. Ivelina. K. Shishmanova¹  Dr. Giuseppe Portale² 

[1] Laboratory of Functional Organic Materials and Devices, Eindhoven University of Technology, P.O. Box 513, 5600 MB, Eindhoven (The Netherlands);Netherlands Organization for Scientific Research (NWO), European Synchrotron Radiation Facility (ESRF), DUBBLE-CRG, Grenoble, 38043 (France)

关键词: alignment;    fibrils;    perylene bisimides;    self-assembly;    X-ray scattering;   

DOI  :  10.1002/open.201402011

来源: Wiley

【 摘 要 】

Abstract

The effect of the ortho 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 ortho alkylation. Furthermore, a solvent-induced growth of ultralong organic n-type semiconducting fibrils from non-ortho-alkylated perylene bisimide was observed. Ortho substitution of the perylene bisimide core alters the mode of fibrillar growth, leading to isotropic crystallization.

【 授权许可】

CC BY-NC   
© 2014 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.

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