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  • Chem Sci Trans., 2016, 5(3),  pp 775-794  

    DOI:10.7598/cst2016.1248

    Research Article

    Role of Halogen Interactions in Stabilizing Crystals of [HgX]- Based Hybrids

  • SUMANESH, ANJU AWASTHI and PANKAJ GUPTA
  • Research Scholar, Punjab Technical University, Jalandhar, Punjab, India
    Department of Chemistry, BCET, Gurdaspur, Punjab, India
    Department of Chemistry Govt. Degree College Kathua, J&K, 184104, India
  • Abstract

    To analyze the halogen interactions in [HgX]-, (X = Cl, Br, I), series of inorganic-organic hybrid materials were analyzed through single crystal X-ray crystallographic techniques. It has been observed that few compounds HgCl1, HgCl2, HgCl3, HgCl6, HgCl7, HgCl8 and HgCl9 of mercuric chloride series validate the phenomenon of halogen interactions with Cl-Cl distance less than sum of their van der Waals radii, whereas in mercuric bromide series, this phenomenon is predominant in the compounds of HgBr1, HgBr4, HgBr5, HgBr8, HgBr9, HgBr10, HgBr11, HgBr13 and HgBr16 with Br-Br distance less than sum of their van der Waals radii. Only two compounds in mercuric iodide series HgI1 and HgI15 confirm the phenomenon of halogen interactions whereas these interactions are missing in other remaining compounds of all the three series. The Hg-Cl bond distances experiential in the range of 2.346(7) to 2.852(5)? and Cl-Hg-Cl bond angles in the range of 79.2 to 180o.

    Keywords

    Halogen interactions, Hg motifs, van der Waals radii, Inorganic-Organic hybrid materials, Metal-organic framework

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