title: Di-mu-aqua-bis[(N-salicylidene-beta-alaninato-kappa3O,N,O')copper(II)] urea disolvate.
abstract: Crystals of the title compound, [Cu(2)(C(10)H(9)NO(3))(2)(H(2)O)(2)].2CH(4)N(2)O, consist of two (N-salicylidene-beta-alaninato-kappa(3)O,N,O')copper(II) coordination units bridged by two water moieties to form a dimer residing on a crystallographic inversion center, along with two uncoordinated urea molecules. The Cu(II) atom has square-pyramidal coordination, with three donor atoms of the tridentate Schiff base and an O atom of the bridging aqua ligand in the basal plane. The axial position is occupied by the second bridging water ligand at a distance of 2.5941 (18) A. Hydrogen bonds between molecules of urea and the neighboring dimer units lead to the formation of a two-dimensional grid of molecules parallel to [101]. The superposition of the normals of the pyramidal base planes in the direction [100] indicates possible pi-pi interactions between the neighboring units.
authors.affiliation: Department of Chemical Theory of Drugs, Faculty of Pharmacy, Comenius University, Kalinciakova 8, 832 32 Bratislava, Slovakia.
authors.forename: Olga
authors.initials: O
authors.lastname: Svajlenová
authors.forename: Ján
authors.initials: J
authors.lastname: Vanco
authors.forename: Jaromír
authors.initials: J
authors.lastname: Marek
mesh_terms: D003300:Copper / Q000737:chemistry*; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D008958:Models, Molecular; D008968:Molecular Conformation; D009942:Organometallic Compounds / Q000737:chemistry*; D014508:Urea / Q000031:analogs & derivatives* / Q000737:chemistry*
chemical_list: D009942:Organometallic Compounds; C500291:di-mu-aqua-bis((N-salicylidene-beta-alaninato-kappa3O,N,O')copper(II)) urea; D003300:Copper; D014508:Urea