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

      Deepak Asthana Geeta Hundal Pritam Mukhopadhyay

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

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/jcsc/126/05/1331-1336

    • Keywords

       

      Amino-pyrene; pi-conjugated systems; supramolecular self-assembly; molecular electronics; fluorescent probes and chemosensors.

    • Abstract

       

      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.

    • Author Affiliations

       

      Deepak Asthana1 Geeta Hundal1 Pritam Mukhopadhyay1

      1. Supramolecular & Material Chemistry Lab, School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110067, India

    • Dates

       
      Published
      September 2014
      Manuscript received
      10 April 2014
      Manuscript revised
      2 June 2014
      Accepted
      1 July 2014

    • Supplementary Material

       

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