Synthesis and structure of a copper(II) tetranuclear complex of 3-(6-methyl-2-pyridyl)-5-(2-pyridyl)pyrazole ligand

Josefina Pons, Francisco Javier Sanchez, Jaume Casabó, Angel Alvarez-Larena, Joan Francesc Piniella, Josep Ros

Research output: Contribution to journalArticleResearchpeer-review

25 Citations (Scopus)

Abstract

The reaction of the ligand 3-(6-methyl-2-pyridyl)-5-(2-pyridyl)pyrazole (HL) with Cu(NO3)2·3H2O gives a complex of formula [Cu4L4(NO3)3](NO3), which has been characterised by elemental analyses, infrared and electronic spectroscopies and single-crystal X-ray diffraction. The molecular structure of this complex is tetranuclear. The Cu2+ ions are linked to four ligands, forming a macromolecular cyclic system. The co-ordination geometries of the Cu(II) are square pyramid. The formation of this complex implies a control of nuclearity by steric hindrance. © 2003 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Pages (from-to)833-836
JournalInorganic Chemistry Communications
Volume6
Issue number6
DOIs
Publication statusPublished - 1 Jul 2003

Keywords

  • Copper complex
  • Crystal structure
  • Polynuclear complex
  • Pyrazolate bridge

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