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Published on: January 30, 2015
Solvent-Controlled Construction of Charge-Transfer Solid-State Supramolecular Polymers and Their Application in
Wen-Juan Qu1, Ke Wang1, Wentao Hu1
1Key Laboratory of Eco-Functional Polymer Materials of the Ministry of Education, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, P. R. China.
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This study employs a solvent-directed strategy to construct organic charge-transfer (CT) supramolecular polymers in the solid states. By utilizing clamparene (CLP) and 4-nitrobenzonitrile (NBN) as building blocks, we achieved topologically controlled self-assembly in different solvents. Specifically, in acetonitrile (CH3CN), strong π-π stacking mediated CT interactions facilitated the formation of a supramolecular polymer in the solid state, which exhibits a selective chromogenic response to pyridine (Py) vapor. This solvent-modulated assembly approach not only enables the construction of functional CT supramolecular polymers with controllable topology but also provides a new pathway for designing vapor-responsive materials.
