Abstract
In the title compound, [Cu(C16H8Br3N2O)2]·C2H6OS, the CuII atom is tetra-coordinated in a square-planar coordination, being surrounded by two N atoms and two O atoms from two N,O-bidentate (E)-1-[(2,4,6-tri-bromo-phen-yl)diazen-yl]naphthalen-2-olate ligands. The two N atoms and two O atoms around the metal center are trans to each other, with an O-Cu-O bond angle of 177.90 (16)° and a N-Cu-N bond angle of 177.8 (2)°. The average distances between the CuII atom and the coordinated O and N atoms are 1.892 (4) and 1.976 (4) Å, respectively. In the crystal, complexes are linked by C-H⋯O hydrogen bonds and by π-π inter-actions involving adjacent naphthalene ring systems [centroid-centroid distance = 3.679 (4) Å]. The disordered DMSO mol-ecules inter-act weakly with the complex mol-ecules, being positioned in the voids left by the packing arrangement of the square-planar complexes. The DMSO solvent mol-ecule is disordered over two positions with occupancies of 0.70 and 0.30.
Highlights
In the title compound, [Cu(C16H8Br3N2O)2]ÁC2H6OS, the CuII atom is tetracoordinated in a square-planar coordination, being surrounded by two N atoms and two O atoms from two N,O-bidentate (E)-1-[(2,4,6-tribromophenyl)diazenyl]naphthalen-2-olate ligands
Complexes are linked by C—HÁ Á ÁO hydrogen bonds and by – interactions involving adjacent naphthalene ring systems [centroid–centroid distance = 3.679 (4) A ]
Azo dyes are an important class of organic compounds that are attractive to researchers because of their various applications (Zollinger, 1961; Nishihara, 2004; Sahoo et al, 2015)
Summary
Azo dyes are an important class of organic compounds that are attractive to researchers because of their various applications (Zollinger, 1961; Nishihara, 2004; Sahoo et al, 2015). Applications of azo dyes include their use as coloring agents because of their affinity for wool and silk (Patel et al, 2011), in photoelectronics (Sekar, 1999), optical storage technology (Wang et al, 2000), biological reactions (Weglarz-Tomczak et al, 2012), printing systems (Abe et al, 1999; Dharmalingam et al, 2011), in analytical areas (Abdalla et al, 2013; Amin et al, 2003) and in the food industry (Almeida et al, 2010) Azo derivatives and their metal complexes are important homologue pigments for synthetic leather and vinyl polymers.
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