title: The first di-mu-hydroxo-bridged binuclear copper complex containing a bis-guanidine ligand.
abstract: The present structure determination of di-mu-hydroxo-bis{[N,N'-bis(dipiperidinomethylene)propane-1,3-diamine-kappa(2)N,N']copper(II)} bis(hexafluorophosphate), [Cu(2)(OH)(2)(C(25)H(46)N(6))(2)](PF(6))(2), is the first to crystallographically characterize a Cu(2)(mu-OH)(2) complex with a bidentate guanidine ligand. The cation lies on a crystallographic inversion centre and shows planar fourfold coordination of the copper centres. The Cu(2)(mu-OH)(2) species can be distinguished from Cu(2)(mu-O)(2) by the Cu-O bond lengths. The packing is determined by strong intermolecular anion-cation hydrogen bonds.
authors.affiliation: Department Chemie, Fakultät für Naturwissenschaften, Universität Paderborn, Warburgerstrasse 100, D-33098 Paderborn, Germany.
authors.forename: Sonja
authors.initials: S
authors.lastname: Herres
authors.forename: Ulrich
authors.initials: U
authors.lastname: Flörke
authors.forename: Gerald
authors.initials: G
authors.lastname: Henkel
mesh_terms: D003300:Copper / Q000737:chemistry*; D018360:Crystallography, X-Ray; D019791:Guanidine / Q000737:chemistry*; D006860:Hydrogen Bonding; D008024:Ligands; D008958:Models, Molecular
chemical_list: D008024:Ligands; D003300:Copper; D019791:Guanidine