title: Di-aqua-bis-(ethyl-enedi-amine-κ(2) N,N')copper(II) bis-(sulfamerazinate).
abstract: The asymmetric unit of the title compound, [Cu(C2H8N2)2(H2O)2](C11H11N4O2S)2, contains one sulfamerazinate anion in a general position and one half-cation that is located on a center of inversion. The Cu(II) cation shows a strong Jahn-Teller distortion. It is coordinated by four N atoms of two ethyl-enedi-amine ligands in the basal plane and two O atoms at much longer distances in the axial positions in a bipyramidal coordination. In the crystal, the building blocks are connected by N-H⋯N, O-H⋯N, N-H⋯O and O-H⋯O hydrogen bonding into a two-dimensional network parallel to (001).
authors.affiliation: Laboratoire des Structures, Propriétés et Interactions Interatomiques, LASPI2A, Université "Abbes Laghrour", Khenchela 40.000, Algeria.
authors.forename: Amani
authors.initials: A
authors.lastname: Direm
authors.affiliation: Laboratoire des Structures, Propriétés et Interactions Interatomiques, LASPI2A, Université "Abbes Laghrour", Khenchela 40.000, Algeria.
authors.forename: Wahiba
authors.initials: W
authors.lastname: Falek
authors.affiliation: Université de Lyon, Laboratoire des Multimatériaux et Interfaces (LMI) UMR, 5615 CNRS Université Claude Bernard Lyon 1, Avenue du 11 Novembre 1918, 69622 Villeurbanne Cedex, France.
authors.forename: Guillaume
authors.initials: G
authors.lastname: Pilet
authors.affiliation: Laboratoire des Structures, Propriétés et Interactions Interatomiques, LASPI2A, Université "Abbes Laghrour", Khenchela 40.000, Algeria.
authors.forename: Nourredine
authors.initials: N
authors.lastname: Benali-Cherif