Synthesis and Structural Characterization of Two Novel Copper(II) Schiff Base Complexes and their Water-Containing Supramolecular Structures

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Barut Celepci D., Korkmaz N., Astley S. T., Aygun M.

JOURNAL OF STRUCTURAL CHEMISTRY, vol.60, no.1, pp.151-158, 2019 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 60 Issue: 1
  • Publication Date: 2019
  • Doi Number: 10.1134/s0022476619010219
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.151-158
  • Keywords: copper(II) complexes, crystal structure, Schiff bases, hydrogen bonding, supramolecular structure, BIOLOGICAL EVALUATION, CRYSTAL-STRUCTURE
  • Dokuz Eylül University Affiliated: Yes


Two novel copper(II) complexes, Cu2L2(bipy) and Cu2L2(H2O)(4)3H(2)O of Schiff base ligands derived from the condensation of L-tert-leucine and L-isoleucine with 2,4-dihydroxybenzaldehyde, are synthesized and characterized by single crystal X-ray diffraction. Compounds crystallize in the orthorhombic crystal system. The Cu2L2(bipy) complex has a distorted square planar geometry with an N2O2 coordination environment. Water is contained in supramolecular network pores. On the other hand, in the Cu2L2(H2O)(4)3H(2)O complex, both copper atoms adopt a five-coordinated distorted square-pyramidal geometry with an NO4 coordination environment and guest water molecules form a 1D water chain. Both complexes build a 2D supramolecular network.