Charge transfer liquid: a stable donor-acceptor interaction in the solvent-free liquid state

Charge-transfer complexes have been an inspiration to develop many functional soft materials. However, most of those studies have focused on solution based assemblies wherein the explicit control of solvents and their polarity are crucial. In this context, we explore an efficient and stable charge t...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2019-08, Vol.55 (63), p.9371-9374
Main Authors: Wakchaure, Vivek Chandrakant, Pillai, Lekshmi V, Goudappagouda, Ranjeesh, Kayaramkodath Chandran, Chakrabarty, Suman, Ravindranathan, Sapna, Rajamohanan, Pattuparambil R, Babu, Sukumaran Santhosh
Format: Article
Language:English
Subjects:
Charge transfer
NMR
Nuclear magnetic resonance
Polarity
Solvents
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Summary:Charge-transfer complexes have been an inspiration to develop many functional soft materials. However, most of those studies have focused on solution based assemblies wherein the explicit control of solvents and their polarity are crucial. In this context, we explore an efficient and stable charge transfer liquid using a solvent-free liquid dialkoxynaphthalene donor and a naphthalenediimide acceptor. It has been observed that irrespective of the donor-acceptor ratio, the charge-transfer liquid exhibited an unprecedented stability and retained characteristic features even at increased temperatures. The underlying intermolecular interactions leading to efficient CT have been examined by NMR techniques together with theoretical modelling studies. The concept of charge transfer liquid will be highly beneficial for the development of processable optoelectronically active materials. A new charge transfer solvent-free liquid having high stability even with donor-acceptor ratio of 1000 : 1 is demonstrated.
ISSN:1359-7345
1364-548X
DOI:10.1039/c9cc03671g