Synthesis, crystal structures, molecular simulations for hydrogen gas adsorption, fluorescent and antimicrobial properties of pyrazine-2,3-dicarboxylate complexes

Gunay G., YEŞİLEL O. Z., DARCAN C., Keskin S., Buyukgungor O.

INORGANICA CHIMICA ACTA, vol.399, pp.19-35, 2013 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 399
  • Publication Date: 2013
  • Doi Number: 10.1016/j.ica.2012.12.036
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.19-35
  • Keywords: Coordination polymers, Pyrazine-2,3-dicarboxylate complexes, Imidazole complexes, Hydrogen gas adsorption, Solvent effect, Antimicrobial activities, COORDINATION POLYMERS, MAGNETIC-PROPERTIES, 2,3-PYRAZINEDICARBOXYLIC ACID, COPPER(II) COMPOUNDS, AGOSTIC INTERACTION, THERMAL ANALYSES, LIGHT GASES, LIGANDS, PHOTOLUMINESCENCE, IMIDAZOLE
  • Ondokuz Mayıs University Affiliated: Yes


Eight new pyrazine-2,3-dicarboxylate complexes have been synthesized and structurally characterized. The pzdc ligand bridges two neighboring metal atoms to form a 1D chain in complexes 1, 3-8. The structure of the complex 2 is mononuclear. It is noted that when dimethylformamide was replaced by methanol, a 1-D double-chain structure of 3 was formed instead of the mononuclear structure of 2. The most interesting feature of 3 is the presence of C-H center dot center dot center dot Cu close hydrogen bonding interactions. In complexes, the pzdc ligand exhibits four kinds of coordination modes. The adjacent chains are held together by hydrogen bonds, C-H center dot center dot center dot pi and pi center dot center dot center dot pi interactions, forming three-dimensional network. Complexes 4-8 exhibit strong fluorescent emission bands in the solid state at room temperature. Atomically detailed simulations were used to assess the potential of complexes in gas storage applications. Complexes 2 and 7 have showed antimicrobial activity on studied microorganisms. (C) 2012 Elsevier B.V. All rights reserved.