title: Crystal structure of bis-{μ-4-methyl-N'-[3-(oxido-imino)-butan-2-yl-idene]benzene-sulfono-hydrazidato}bis-[(dimethyl sulfoxide-κO)copper(II)].
abstract: In the title compound, [Cu2(C11H13N3O3S)2(C2H6OS)2], the Cu(II) cation is N,N',O-chelated by a deprotonated hy-droxy-imino-tosyl-hydrazone ligand and coordinated by a dimethyl sulfoxide mol-ecule. One O atom from the adjacent hy-droxy-imino-tosyl-hydrazone ligand bridges the Cu(II) cation, forming the centrosymmetric dimeric complex. The cation is in an overall distorted N2O3 square-pyramidal coordination environment. The methyl-benzene ring is twisted with respect to the hydrazine fragment, with a dihedral angle of 89.54 (9)° between the planes. An intra-molecular C-H⋯O hydrogen bond occurs. In the crystal, mol-ecules are linked by weak C-H⋯O and C-H⋯S inter-actions. Weak π-π stacking is also observed between parallel benzene rings of adjacent mol-ecules, the centroid-centroid distance being 3.9592 (17) Å.
authors.affiliation: Escola de Química e Alimentos, Universidade Federal do Rio Grande, Av. Itália km 08, Campus Carreiros, 96203-900, Rio Grande, RS, Brazil.
authors.forename: Diego Pereira
authors.initials: DP
authors.lastname: Siqueira
authors.affiliation: Escola de Química e Alimentos, Universidade Federal do Rio Grande, Av. Itália km 08, Campus Carreiros, 96203-900, Rio Grande, RS, Brazil.
authors.forename: Maria Carolina Bulhosa
authors.initials: MC
authors.lastname: Siqueira
authors.affiliation: Escola de Química e Alimentos, Universidade Federal do Rio Grande, Av. Itália km 08, Campus Carreiros, 96203-900, Rio Grande, RS, Brazil.
authors.forename: Vanessa Carratu
authors.initials: VC
authors.lastname: Gervini
authors.affiliation: Escola de Química e Alimentos, Universidade Federal do Rio Grande, Av. Itália km 08, Campus Carreiros, 96203-900, Rio Grande, RS, Brazil.
authors.forename: Leandro
authors.initials: L
authors.lastname: Bresolin
authors.affiliation: Departamento de Química, Universidade Federal de Sergipe, Av. Marechal Rondon s/n, Campus, 49100-000, São Cristóvão, SE, Brazil.
authors.forename: Adriano Bof
authors.initials: AB
authors.lastname: de Oliveira
keywords: CuII dimer; crystal structure; hy­droxy­imino-tosyl­hydrazone derivative; π–π stacking