Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels.In a patent£¬ Quality Control of: Vanadyl acetylacetonate, Which mentioned a new discovery about 3153-26-2
Divanadium(V) complexes with 4-R-benzoic acid (1-methyl-3-oxo-butylidene)-hydrazides: Syntheses, structures and properties
In acetonitrile, reactions of bis(acetylacetonato)oxidovanadium(IV) ([VO(acac)2]) with 4-R-benzoylhydrazine in 1:1 mole ratio provide coordinatively symmetrical complexes (1-5) of the {OV(mu-O)VO}4+ motif in 40-47% yields. On the other hand, in methanol the same reactants provide complexes (6-10) containing the {OV(mu-OMe)2VO}4+ core in 37-50% yields. In both series of complexes, the ligand is the O,N,O-donor deprotonated Schiff base system 4-R-benzoic acid (1-methyl-3-oxo-butylidene)-hydrazide formed by template condensation of acac- with 4-R-benzoylhydrazine (R = H, Cl, OMe, NO2 and NMe2). All the complexes have been characterized by elemental analysis, magnetic and spectroscopic (IR, UV-Vis and NMR) measurements. Molecular structures of three representative complexes (4, 6 and 7) have been determined by X-ray crystallography. In each complex, the dianionic planar ligand is coordinated to the metal centre via the enolate-O, the imine-N and the O-atom of the deprotonated amide functionality. Cyclic voltammetric measurements in dichloromethane revealed that complexes 1-5 are redox inactive, while complexes 6-10 display a metal centred reduction in the potential range -0.06 to 0.0.32 V (versus Ag/AgCl).
Because enzymes can increase reaction rates by enormous factors and tend to be very specific, Quality Control of: Vanadyl acetylacetonate, typically producing only a single product in quantitative yield, they are the focus of active research.you can also check out more blogs about 3153-26-2
Reference£º
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI