Crystal structures of a series of bis-(acetyl-aceto-nato)oxovanadium(IV) complexes containing N-donor pyridyl ligands

• Published in: Acta crystallographica. Section E, Crystallographic communications Vol. 76; no. Pt 6; pp. 826 - 830
• Main Authors: Rood, Jeffrey A, Reehl, Steven R, Jacoby, Kaitlyn A, Oliver, Allen
• Format: Journal Article
• Language: English
• Published: England International Union of Crystallography 01.06.2020
• Subjects: bidentate ligands; cis/trans isomers; coordination compound; crystal structure; Research Communications; vanadium(iv); cis/trans isomers; crystal structure; bidentate ligands; coordination compound; vanadium(IV)
• ISSN: 2056-9890; 2056-9890
• DOI: 10.1107/S2056989020006246

Crystal structures for a series of bis-(acetyl-acetonato)oxovanadium(IV) complexes containing -donor pyridyl ligands are reported, namely, bis-(acetyl-acetonato-κ , ')oxido(pyridine-κ )vanadium(IV), [V(C H O ) O(C H N)], , bis-(acetyl-acetonato-κ , ')oxido(pyridine-4-carbo-nitrile-κ )vanadium(IV), [V(C H O ) O(C H N )], , and bis-(acetyl-acetonato-κ , ')(4-meth-oxy-pyridine-κ )oxidovanadium(IV), [V(C H O ) O(C H NO)], , Compounds - have the formulae VO(C H O ) , where = pyridine ( ), 4-cyano-pyridine ( ), and 4-meth-oxy-pyridine ( ). Compound was previously reported [Meicheng (1984 ▸). , , 759-764 and DaSilva, Spiazzi, Bortolotto & Burrow (2007). , E , m2422] and redetermined here at cryogenic temperatures. Compounds and as pyridine and 4-cyano-pyridine adducts, respectively, crystallize as distorted octa-hedral structures with the oxo and pyridyl ligands to one another. A crystallographic twofold axis runs through the O-V-N bonds. Compound containing a 4-meth-oxy-pyridine ligand crystallizes as a distorted octa-hedral structure with the oxo and pyridyl ligands to one other, removing the twofold symmetry seen in the other complexes.