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

Author(s)

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

• Document type: Journal article
• Source: ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS; v. 70, p. 9-pg., 2014-10-01.

Abstract

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)

• FAPESP's process: 11/16160-1 - Complexes of vanadium (+ IV and + v) and rhenium (+V) with bioactive ligands: synthesis, characterization and biological studies aiming obtaining potential anti-Mycobacterium tuberculosis and antiparasitic agents
• Grantee: Murilo César Carroccia
• Support Opportunities: Scholarships in Brazil - Master
• FAPESP's process: 09/54011-8 - Acquisition of a single-crystal X-ray diffractometer for the structural analysis of small molecules and proteins
• Grantee: Victor Marcelo Deflon
• Support Opportunities: Multi-user Equipment Program
• FAPESP's process: 11/16380-1 - Au, Re and Tc thiosemicarbazones complexes of interest in the development pharmaceuticals or radiopharmaceuticals for diagnostic or therapy
• Grantee: Pedro Ivo da Silva Maia
• Support Opportunities: Scholarships in Brazil - Post-Doctoral