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http://hdl.handle.net/2289/7106
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) |
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2019_Journal_of_Molecular_Liquids_Vol.274_p215.pdf Restricted Access | Restricted Access | 2.06 MB | Adobe PDF | View/Open Request a copy |
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