Solvent dependent formation of Cu(II) complexes based on isonicotinamide ligand

Francisco Sánchez-Férez, Laura Bayés, Mercè Font-Bardia, Josefina Pons

Research output: Contribution to journalArticleResearch

11 Citations (Scopus)

Abstract

© 2019 Elsevier B.V. Five solvent-dependent Cu(II) compounds have been synthesized with [Cu(μ-OAc)(μ-Pip)(MeOH)]2 (OAc = acetate; Pip = 1,3-benzodioxolecarboxylate) and isonicotinamide (Isn) as an auxiliary ligand in different solvents. In all the compounds, Pip units are displaced resulting in dimeric [Cu(μ-OAc)(OAc)(Isn)2(solvent)]2 (solvent = MeOH (2a), dmf and H2O (3) or H2O and HPip (4a)), paddle-wheel [Cu(μ-OAc)2(Isn)]2·2dmso (5) or monomeric compounds [Cu(OAc)2(HOAc)(Isn)2]·HOAc (6). All of them have been characterized by analytical and ATR-FTIR techniques and their X-ray crystal structures solved. The OAc anions construct different arrays and exhibit different coordination modes depending on the solvent used. The supramolecular expansion is constantly determined by the amide-amide pattern and the role of the occluded solvent molecules. This tendency is confirmed by Hirshfeld Surface analysis. Finally, the thermal stability of compound 4a has been analyzed.
Original languageEnglish
Pages (from-to)112-122
JournalInorganica Chimica Acta
Volume494
DOIs
Publication statusPublished - 1 Aug 2019

Keywords

  • Cu(II) complexes
  • Hirshfeld surfaces
  • Isonicotinamide ligand
  • Solvent-controlled formation
  • Supramolecular networks
  • X-ray crystal structures

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