• What Triggers Supramolecular Isomerism in Nonmolecular Solids? A case study of Copper Pyridazine Halides

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      https://www.ias.ac.in/article/fulltext/jcsc/128/11/1687-1694

    • Keywords

       

      Crystallization; nucleation; supramolecular isomerism; coordination polymer; non-molecular.

    • Abstract

       

      Molecular recognition and aggregation occurring in solution are critical events towards the nucleation and growth of a crystal. However, controlling aggregation towards a particular supramolecular assembly is difficult due to lack of information on its thermodynamics and kinetics. Hence, the occurrence of supramolecularisomers is hardly recognized. In this paper, therefore, we demonstrate a retrosynthetic analysis to interpret the occurrence of isostructures and supramolecular isomers and predict the possibility of new phases in copperhalide-pyridazine- H₂O system. A significant feature of this paper is the use of crystal engineering tools, namely, synthons and tectons to interpret the phase diagram of a system. The structure-synthesis correlation discussed here provides chemical insight to evolve a synthetic protocol to interpret and predict the possibilityof supramolecular isomers in metal organic solids.

    • Author Affiliations

       

      JENCY THOMAS1 ARUNACHALAM RAMANAN2

      1. Research and P G Department of Chemistry, St. Thomas’ College (Autonomous), Thrissur, Kerala 680 001, India
      2. Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110 016, India
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