Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels.In a patent， Formula: C10H14O5V, Which mentioned a new discovery about 3153-26-2
Reaction of [VO(acac)2](where acac = acetylacetonate), benzohydroxamic acid (Hbha), and two similar aroylhydrazone ligands in methanol produced two benzohydroxamate-coordinated mononuclear vanadium(V) oxo complexes with general formula [VOL(bha)], where L = L1 = N?-(5-bromo-2-hydroxybenzylidene)-2-fluorobenzohydrazide (H2L1), and L = L2 = N?-(3-bromo-2-hydroxybenzylidene)-2-fluorobenzohydrazide (H2L2). Crystal and molecular structures of the complexes were determined by single crystal X-ray diffraction method. All of the investigated compounds were further characterized by elemental analysis, and FT-IR and UV-Vis spectroscopy. Single crystal X-ray structural studies reveal that the V atoms in both complexes are in octahedral coordination with the benzohydrazone ligands coordinated to the VOcores through phenolate O, imino N, and enolate O atoms, and the benzohydroxamate ligands coordinated to the VO cores through deprotonated hydroxyl O and carbonyl O atoms. Thermal stability of the complexes was studied.
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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI