Title:	Benzopyrano-Fused Phenanthridine-Based Columnar Mesogens: Synthesis, Self-organization and Charge- Transport Properties
Authors:	Bhat S, Vanishree Vadivel, Marichandran Pratap Singh, Dharmendra Raghunathan, V. A. Roy, Arun Kumar, Sandeep
Issue Date:	1-Mar-2023
Publisher:	Europian Chemical Societies Publishing
Citation:	Chemistry: A European Journal, 2023,Vol.29, p.e202300227
Abstract:	Columnar mesogens constitute a fascinating class of supramolecular nano-architectures owing to the exceptional properties induced by their self-assembling behavior. Extending the π-conjugated core in such systems by incorporating heteroatoms extensively influences their mesomorphic, photophysical properties, etc., presenting them as potential candidates for optoelectronic applications. In the present work, a series of novel nitrogen and oxygen-incorporated chromenonaphthophenanthridine-based elliptical dimers have been synthesized through tandem Pictet-Spengler cyclization followed by ipso-aromatic substitution in one-pot. Mesophase characterization has been carried out by employing POM, DSC, and X-ray diffraction studies. Photophysical properties were investigated using UV-vis and emission spectroscopy. Furthermore, the charge transport properties were analyzed by time-of-flight measurements, and the observed ambipolar mobilities were found to be of the order of 10-3 cm2V- 1 s- 1. The high solubility, excellent thermal stability, self-organizing properties, and ambipolar charge transport characteristics make them promising candidates for applications
Description:	Restricted Access.
URI:	http://hdl.handle.net/2289/8193
ISSN:	0947-6539 (print) 1521-3765 (online)
Alternative Location:	http://arxiv.org/abs/cond-mat/ http://dx.doi.org/doi.org/10.1002/chem.202300227
Copyright:	2023, Wiley-VCH GmbH
Appears in Collections:	Research Papers (SCM)

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