Crystal structure of di-mu-methanolatobis{[N '-(1-benzoylprop-1-en-2-yl)thiophene-2-carbohydrazidato-kappa O-3,N ',O ']oxidovanadium(V)}

Autor(es)

Carroccia, Murilo C. ; Pesci, Rafaela B. P. ; Maia, Pedro Ivo da S. ; Deflon, Victor M.

• Tipo de documento: Artigo Científico
• Fonte: ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS; v. 70, p. 9-pg., 2014-10-01.

Resumo

The neutral binuclear molecule of the title complex, [V-2(C15H12N2O2S)(2)(CH3O)(2)O-2], exhibits inversion symmetry and consists of two oxidovanadium(V) (VO)(3+) fragments, each coordinated by a dianionic and O,N ',O '-chelating N '-(1benzoylprop-1-en-2-yl) thiophene-2-carbohydrazidate ligand. The V5+ cations are bridged by two asymmetrically bonding methanolate ligands [V-O = 1.8155 (12) and 2.3950 (13) angstrom] originating from the deprotonation of the methanol solvent. The coordination sphere of the V V atom is distorted octahedral, with the equatorial plane defined by the three donor atoms of the thiophene-2-carbohydrazidate ligand and the O atom of a methanolate unit. The axial positions are occupied by the oxide group and the remaining methanolate ligand. The axially bound methanolate ligand shows a longer V-O bond length due to the trans influence caused by the tightly bonded oxide group. The packing of the complex molecules is dominated by dispersion forces. (AU)

• Processo FAPESP: 11/16160-1 - Complexos de vanádio (+IV e +V) e rênio (+V) com ligantes bioativos: síntese, caracterização e estudo biológico visando a obtenção de potenciais agentes anti-Mycobacterium tuberculosis e antiparasitários
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