title: (Pentane-2,4-dionato-κ2O,O')(pyridin-2-amine-κN1)copper(II) and (pentane-2,4-dionato-κ2O,O')(pyrimidin-2-amine-κN1)copper(II).
abstract: The title compounds, [Cu(C(5)H(7)O(2))(2)(C(5)H(6)N(2))], (I), and [Cu(C(5)H(7)O(2))(2)(C(4)H(5)N(3))], (II), were prepared by the reaction of bis(pentane-2,4-dionato-κ(2)O,O')copper(II) with pyridin-2-amine and pyrimidin-2-amine, respectively. From a chemical point of view, it is interesting that no Schiff base formation was observed. The compounds are isostructural, with both having a square-pyramidal coordination of the Cu(II) atom and intramolecular N-H...O hydrogen bonding. The additional N atom of the pyrimidin-2-amine ligand is not involved in hydrogen bonding or in metal coordination. In the crystal structure, chelate rings are involved in π-π interactions and molecules of (I) are linked together via N-H...O hydrogen bonds.
authors.affiliation: Faculty of Chemistry and Chemical Technology, University of Ljubljana, Ljubljana, Slovenia. franc.perdih@fkkt.uni-lj.si
authors.forename: Franc
authors.initials: F
authors.lastname: Perdih
mesh_terms: D003300:Copper / Q000737:chemistry*; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D008024:Ligands; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis* / Q000737:chemistry*
chemical_list: C571847:(pentane-2,4-dionato-kappa2O,O')(pyridin-2-amine-kappaN1)copper(II); C571848:(pentane-2,4-dionato-kappa2O,O')(pyrimidin-2-amine-kappaN1)copper(II); D008024:Ligands; D009942:Organometallic Compounds; D003300:Copper