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    • Pritam Mukhopadhyay

      Articles written in Journal of Chemical Sciences

    • Volume 126 Issue 5 September 2014 pp 1331-1336 Special issue on Chemical Crystallography

      Self-assembly characteristics of a multipolar donor-acceptor-based bis-pyrene integrated molecular tweezer

      Deepak Asthana Geeta Hundal Pritam Mukhopadhyay

      More Details Abstract Fulltext PDF

      A modular design of a molecular tweezer is presented that integrates a multipolar D-𝜋-A [D: Donor, A: Acceptor] scaffold, 1-aminopyrene-based fluorophore units and L-alanine-based linkers. The synthesis of the molecule is based on two-fold aromatic nucleophilic reactions (ArSN) and coupling reactions of the acid and amino functionalities. This molecule crystallizes in a non-centrosymmteric (P21) space group.We present its rich self-assembly characteristics that involves an array of 𝜋-stacking interactions. In addition, the molecular tweezer within its cleft forms H-bonding with two dimethylformamide molecules. Such multipolar D-𝜋-A systems containing chiral and fluorophore units are potential candidatesfor a number of electronic and photonic applications.

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