Crystal structure of bis(μ2-tetrabromophthalato-κ2O1:O2)bis[aqua(N,N,N′,N′-tetramethylethane-1,2-diamine-κ2N,N′)copper(II)]

• Main Authors: Luis Manuel Tobón-Trujillo, Luis Felipe Villanueva-Sánchez, Diego Martínez-Otero, Alejandro Dorazco-González
• Format: Article
• Language: English
• Published: International Union of Crystallography 2015-09-01
• Series: Acta Crystallographica Section E: Crystallographic Communications
• Subjects: crystal structure; copper(II) complex; tetramethylethane-1,2-diamine; tetrabromophthalate anion; hydrogen bonding
• Online Access: http://scripts.iucr.org/cgi-bin/paper?S2056989015015194

In the title complex, [Cu2(C8Br4O4)2(C6H16N2)2(H2O)2], the CuII cation is chelated by a tetramethylethane-1,2-diamine ligand and coordinated by a water molecule as well as bridged by two tetrabromophthalate anions in a distorted O3N2 trigonal–bipyramidal geometry. The two symmetry-related tetrabromophthalate anions bridge the two CuII cations, forming a centrosymmetric dinuclear complex in which the Cu...Cu separation is 5.054 (2) Å. Intramolecular classic O—H...O hydrogen bonds and weak C—H...O hydrogen bonds occur in the dinuclear molecule. In the crystal, the molecules are linked by weak C—H...Br and C—H...O interactions into supramolecular chains propagating along the b-axis direction.