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      https://www.ias.ac.in/article/fulltext/jcsc/132/0133

    • Keywords

       

      Crystal-color morphology; characterization; packing interactions; additive.

    • Abstract

       

      Many reports describe the influence of additives or impurities on the physicochemical properties of crystals. On having obtained trans-[RuCl2(C5H5N)4] as brown, needle-shaped crystals contrary to red ororange-red blocks reported previously, we herein revisit its study. This complex was obtained from the filtrate of an ensuing reaction mixture of RuCl3.3H2O, bis(2-hydroxy-l-naphthaldehyde)adipoyldihydrazone (npahH4) and pyridine in methanol. Findings from X-ray crystallographic data and spectra of IR, UV-Visible,1H and 13C NMR along with other analytical studies of the complex are presented here. A comparative study with previously reported crystal forms was performed to understand the accompanying molecular structuraldifferences in the physical (shape, size and color) morphological alteration. Further probing into molecular dynamics, the molecular interactions were analyzed and quantified using computational methods. The symmetry of intermolecular interaction in C—H_Cl is different from earlier reported crystal forms. The intercontact H_H showed a major contribution (62.9%) for Hirshfeld surfaces. Also, we report antibacterial activity of the complex against methicillin-resistant Staphylococcus aureus followed by the in silico docking study that revealed its interaction with the residue Glu58 of ATPase subunit of S. aureus GyrB. Additional studies on its toxicity using rat models revealed this complex as non-toxic to animals

    • Author Affiliations

       

      DEBAJANI BASUMATARY1 MADAN KUMAR SHANKAR2 KULLAIAH BYRAPPA3 KANDARPA KUMAR SAIKIA4 AJAZ AHMAD DAR5 VEDANT VIKROM BORAH4 PRANJIT SARMA1 PRANAMI MAHANTA1 MRITUNJAYA ASTHANA6 NAMRATHA KEERTHIRAJ7

      1. Department of Applied Sciences, Gauhati University, Guwahati 781 014, India
      2. Institution of Excellence, Vijnana Bhavan, University of Mysore, Mysuru 570 006, India
      3. Research and Innovations Center, Adichunchanagiri University, B.G. Nagara, Mandya 571 448, India
      4. Department of Bioengineering and Technology, Gauhati University, Guwahati 781 014, India
      5. Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781 039, India
      6. TCG Lifesciences Pvt. Ltd, Salt Lake, Kolkata 700 091, India
      7. Department of Studies in Earth Science, Manasa Gangotri, University of Mysore, Mysuru 570 006, India
    • Dates

       
  • Journal of Chemical Sciences | News

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