Unexpected chlorination of a pyrazole ligand. Structural characterisation of a new binuclear Cu(II) complex

Josefina Pons, Arafa Chadghan, Angel Alvarez-Larena, Joan Francesc Piniella, Josep Ros

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22 Citations (Scopus)

Abstract

Crystallisation of Cu(HL1)2Cl2 · EtOH (HL1 = 3-phenyl-5-(6-methyl-2-pyridyl)pyrazole) in DMF affords [Cu2(ClL1)2Cl2 (DMF)2], where the C-chlorination of the pyrazolyl ring and the formation of a dinuclear compound is observed. The deprotonated pyrazolyl ligands have three co-ordination positions (two pyrazole nitrogens and one pyridine nitrogen) and simultaneously act as chelate and bridging ligands. © 2001 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Pages (from-to)610-612
JournalInorganic Chemistry Communications
Volume4
Issue number11
DOIs
Publication statusPublished - 29 Oct 2001

Keywords

  • Copper complexes
  • Crystal structures
  • Dinuclear complexes
  • Pyrazole complexes

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