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      https://www.ias.ac.in/article/fulltext/jcsc/127/05/0849-0856

    • Keywords

       

      Distorted trigonal pyramidal geometry; anti-conformation; steric hindrance; sql type topology; fingerprint plots

    • Abstract

       

      The 2-D polymeric complex (I) has the formula [Ag(phSE)(NO3)]n, which has been crystallized from methanol-acetonitrile mixture and characterized by elemental analysis and single-crystal X-ray diffraction analysis. In this polymer, each Ag(I) ion occupies distorted trigonal pyramidal geometry coordinating with two sulphur atoms from two different ligands and two oxygen atoms from two NO33 groups. Each NO3 acts as a bridging ligand coordinating through its two oxygen atoms to different Ag(I) ions. The Ag(I) ion and NO3 group are in plane with torsion angle 176.43$^{\circ}$. All the ligands adopt anti-conformation but the relative orientation of two -S-C-C-S units is perpendicular to one another such that two phenyl rings attached to the two sulphur atoms coordinating to a particular Ag ion lie on the same side. Each NO3 bridges two neighbouring Ag ions belonging to two different -S-Ag-S-C-C-S-Ag-S- tapes running along 𝑎-axis where two phenyl rings are not parallel to each other to reduce the steric hindrance and maximize packing. The adjacent chains are fused to form 2D sheet by bridging both through bidentate phSE ligand and NO3 anion stacking in 𝑎𝑏 plane. The structure consists of 4-c uninodal net where Point symbol for Ag (I) ion and net is (44.62) with sql type topology. X-ray diffraction analysis and Hirshfeld surface analysis give rise to comparable results but in Hirshfeld surface analysis, twothird times more close contacts are obtained. The fingerprint plots demonstrate that these weak non-bonding interactions are important for stabilizing the crystal packing.

    • Author Affiliations

       

      Rahul K Mudsainiyan1 Amanpreet K Jassal1 Meenu Arora2 Sukhvinder K Chawla1

      1. Department of Chemistry, Guru Nanak Dev University, Amritsar 143 005, India
      2. Department of Chemistry, Multani Mal Modi College, Patiala, 147 001 India
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    • Supplementary Material

       
  • Journal of Chemical Sciences | News

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