Title:	Supramolecular columnar self-assembly of wedge-shaped rhodanine based dyes: Synthesis and optoelectronic properties
Authors:	Vinayakumara, D.R. Kumar, Sandeep Adhikari, A.V.
Keywords:	Thermotropic liquid crystal Supramolecular chemistry Hydrogen bonding Heterocycles Dyes
Issue Date:	15-Jan-2019
Publisher:	Elesvier B.V.
Citation:	Journal of Molecular Liquids, 2019, Vol. 274, p215-222
Abstract:	The development of small π-conjugated functional organic molecules capable of forming supramolecular columnar self-assembly, is a rapidly growing area of material research. In this context, the present work describes the design and synthesis of a new series of wedge-shaped rhodanine derivatives with D-A configuration, viz.RA1–RA5. Their LC properties were studied by employing DSC, POM and XRD techniques. The mesophase behavior was investigated as a function of chain length, density and position of alkoxy terminals to understand structure-property relationship. Interestingly, the longer chain analog, i.e.RA3 demonstrated H-bonded disc-like macrocyclic structures, causing an imperative columnar hexagonal phase at ambient temperature. Further, their photophysical and electrochemical properties were evaluated. They showed a good dye property attributing to effective intramolecular interactions, as confirmed by experimental and theoretical studies. Conclusively, RA3 has been considered to be a potential candidate for its application in organic electronics.
Description:	Restricted Access.
URI:	http://hdl.handle.net/2289/7106
ISSN:	0167-7322
Alternative Location:	https://doi.org/10.1016/j.molliq.2018.10.139
Copyright:	2018 Elsevier B.V.
Appears in Collections:	Research Papers (SCM)

Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.