Wakchaure Vivek Chandrakant, Pillai Lekshmi V, Ranjeesh Kayaramkodath Chandran, Chakrabarty Suman, Ravindranathan Sapna, Rajamohanan Pattuparambil R, Babu Sukumaran Santhosh
Organic Chemistry Division, National Chemical Laboratory (CSIR-NCL), Dr Homi Bhabha Road, Pune-411008, India.
Amrita Vishwa Vidyapeetham University, Amritapuri, Kerala-690525, India.
Chem Commun (Camb). 2019 Aug 14;55(63):9371-9374. doi: 10.1039/c9cc03671g. Epub 2019 Jul 18.
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.
电荷转移络合物一直是开发许多功能性软材料的灵感来源。然而，这些研究大多集中在基于溶液的组装体上，其中溶剂及其极性的明确控制至关重要。在这种背景下，我们使用无溶剂液体二烷氧基萘供体和萘二亚胺受体探索了一种高效且稳定的电荷转移液体。据观察，无论供体 - 受体比例如何，这种电荷转移液体都表现出前所未有的稳定性，甚至在温度升高时仍保留其特征。通过核磁共振技术以及理论建模研究，对导致高效电荷转移的潜在分子间相互作用进行了研究。电荷转移液体的概念对于可加工的光电子活性材料的开发将非常有益。
