Category: 3153-26-2

A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, Recommanded Product: 3153-26-2, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 3153-26-2, Name is Vanadyl acetylacetonate, molecular formula is C10H14O5V. In a Article, authors is Mohammadi, Khosro，once mentioned of 3153-26-2

Synthesis and evaluation of three new oxovanadium(IV) complexes, formed by the interaction of vanadyl acetylacetonate and the Schiff bases: 3,4-bis((E)-2-hydroxybenzylideneamino)benzoic acid (L1), 3,4-bis-((E)-2-hydroxy-3-methoxybenzylideneamino)benzoic acid (L2) and 3,4-bis((E)-2,4-dihydroxybenzylideneamino)benzoic acid (L3) in methanol. The complexes have been characterized and studied by IR spectra, UV-Vis spectroscopy and thermogravimetry in order to evaluate their thermal stability and thermal decomposition. According to the results discussed from TG curves, the order of thermal stability for the complexes is VOL3 > VOL1 > VOL2. Their formation constants (Kf) were obtained by UV-Vis spectroscopic titration at 15, 25, 35 and 45 C in methanol by SQUAD software. The trend of formation constants of the complexes as follows: VOL3 > VOL2 > VOL1.

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Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Application of 3153-26-2, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.3153-26-2, Name is Vanadyl acetylacetonate, molecular formula is C10H14O5V. In a Article，once mentioned of 3153-26-2

The effect of amide coordination on the parallel coupling constant has been determined for three square pyramidal vanadyl complexes. The complexes V(IV)O(PAAP), V(IV)O(PAIS), and [V(V)O(HIBA)][C4H9)4N] have been prepared, and the latter two have been structurally characterized (PAAP is the dianion of 1,2-bis(2-carboxamidopyridyl)benzene, PAIS is the dianionof [N-(salicylideneamine)phenyl]pyridine-2-carboxamide], HIBA is the tetraanion of 1,2-bis(2-hydroxy-2-methylpropanamido)benzene). X-ray diffraction quality crystals of V(IV)O(PAIS) were obtained by slow evaporationof a nitromethane solution of V(IV)O(PAIS). X-ray parameters for V(IV)O(PAIS): C19H13N3O3V1, 382.08 g/mol, P21/n, a = 7.777(3) A, b = 18.433(7) A, c = 11.565(4) A, beta = 102.66(3)°; V = 1633(1)A**3; Z = 4. The final refinement yielded R = 0.0600 and Rw = 0.0450. X-ray diffraction quality crystals of [V(V)O(HIBA)][(C4H9)4N] were obtained by slow evaporation of a THF-CHCl3 solution of [V(V)O(HIBA)][(C4H9)4N]. X-ray parameters for [V(V)O(HIBA)][C4H9)4N]: C30H52N3O5V1, 585.69g/mol, P21/n; a = 13.228(3) A, b = 16.054(4) A, c = 14.7140(20)A, beta = 93.240(10)°; V = 3119.7(11) A**3; Z = 4. Thefinal refinement yielded R = 0.051 and Rw = 0.047. Comparison of calculated and experimental values of A.dblvert. for vanadyl-bleomycin and vanadyl-serum albumin support the presence of a deprotonated amide donor(s)in vanadyl-bleomycin but not in vanadyl-serum albumin.

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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

In homogeneous catalysis, the catalyst is in the same phase as the reactant. The number of collisions between reactants and catalyst is at a maximum.In a patent, 3153-26-2, name is Vanadyl acetylacetonate, introducing its new discovery. SDS of cas: 3153-26-2

The formation of a dioxovanadium(v) complex of an expanded porphyrin-type Schiff base macrocycle is reported; the tetrapyrrolic ligand undergoes a tautomeric shift which permits a bimodal recognition of the nonspherical cationic guest. The Royal Society of Chemistry 2006.

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Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Reference of 3153-26-2, Because a catalyst decreases the height of the energy barrier, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.3153-26-2, Name is Vanadyl acetylacetonate, molecular formula is C10H14O5V. In a article，once mentioned of 3153-26-2

The coordination chemistry of the pendent-arm macrocycles 1,4,7-tris(3,5-dimethyl-2-hydroxybenzy1)-1,4,7-triazacyclononane, LMeH3, 1,4,7-tris(3,5-di-tert-butyl-2-hydroxybenzyl)-1,4,7-triazacyclononane, LBuH3, 1,4,7-tris(3-tert-butyl-5-methoxy-2-hydroxybenzyl)-1,4,7-triazacyclononane, LBuH3, and Tolman’s ligand 1,4-diisopropyl-7-(3,5-di-tert-butyl-2-hydroxybenzyl)-1,4,7-triazacyclononane, LPrH, with vanadium and cobalt(III) has been studied. The following complexes containing a fac-N3O3 donor set have been synthesized: [LMeVIII] (1), [LMeVIV]PF6 (2), [(LMeH)VV(O)]PF6 (3), [LBuVIV]PF6 (4), [LOCH3VIV]PF6 (5), [LMeCoIII] (6), [LBuCoIII] (7), [LOCH3CoIII] (8). In addition, two complexes containing the LPrCoIII fragment have been prepared: [LPtCoIII(acac)](ClO4) (9) and [LPrCoIII(Cl4cat)]·CH3CN (10), where acac- represents the ligand pentane-2,4-dionate and Cl4cat2- is tetrachlorocatecholate. Complexes 9 and 10 have been characterized by single-crystal X-ray crystallography: 9 crystallizes in the triclinic space group P1 with a = 9.493(1) A, b = 9.760(1) A, c = 18.979(2) A, alpha = 88.57(1), beta= 78.60(1), gamma = 79.24(1), V = 1693.3(3) A3, and Z = 2; 10 crystallizes in the monochnic space group P21/n with a = 10.184(2) A, b = 24.860(5) A, c = 14.872(3) A, beta= 97.95(3), V = 3729(1) A3, and Z = 4. Electrochemically, complexes 2,4, and 5 can be reversibly oxidized by one electron, yielding vanadium(V), and one-electron-reduced, affording vanadium(III) species; 3 can be reduced to [LMeHVIV(O)]. These redox processes are shown to be metal-centered. In contrast, the cyclic voltammograms of 7 and 8 display three reversible one-electron oxidations. For the monocations [7]·+ and [8]·+, EPR and UV-vis spectroscopies reveal that these are phenoxyl-cobalt(III) species. Thus, the redox processes are ligand-centered. Similarly, [9]+ is reversibly oxidized to the phenoxyl-cobalt(III) complex [9]·2+ (S = 1/2). For 10, two reversible one-electron oxidation steps have been identified generating [10]·+ (S = 1/2) and [10]2·2+ (S = 1). It is unambiguously shown by EPR and resonance Raman spectroscopies that [10]·+ contains a (phenolato)(semiquinonato)cobalt(III) unit whereas in [10]2·2+ a phenoxyl(semiquinonato)cobalt(III) unit prevails.

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Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Related Products of 3153-26-2, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.3153-26-2, Name is Vanadyl acetylacetonate, molecular formula is C10H14O5V. In a Article，once mentioned of 3153-26-2

Reaction of vanadyl(IV)-acetylacetonate with 3-ethoxy-2-hydroxybenzaldehyde 4-methylthiosemicarbazone and 2,2?-bipyridyl in methanol affords a mononuclear oxovanadium(IV) complex containing VO(ONS) basic core. The complex has been characterized by various physicochemical techniques (UV?Vis, IR, and elemental analysis), and single-crystal X-ray diffraction. X-ray crystal structure determination reveals that the complex crystallizes as triclinic space group P 1, with unit cell dimensions a = 10.073(2) A, b = 11.272(3) A, c = 11.338(3) A, alpha = 87.291(2), beta = 83.440(2), gamma = 64.003(2), V = 1149.5(5) A3, Z = 2, R1 = 0.0356, wR2 = 0.0867, S = 1.052. The V atom in the complex is octahedrally coordinated, with the tridentate ONS ligand occupying the meridional sites. The nitrogen donor of 2,2?-bipyridyl ligand, occupying an apical position has a trans-labilizing influence, resulting in elongation of the V=O terminal bond. Thermal gravimetric analysis was performed to understand the stability of the complex. The complex shows high catalytic property and selectivity in the epoxidation of cyclohexene with t-butylhydroperoxide as oxidant.

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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Electric Literature of 3153-26-2, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.3153-26-2, Name is Vanadyl acetylacetonate, molecular formula is C10H14O5V. In a Article，once mentioned of 3153-26-2

Reaction of vanadyl acetylacetonate with tert-butyl hydroperoxide (benzene, 20C) at any molar ratio leads to the elimination of ligand and its oxidation mainly to CO2 and acetic acid. At the (acac)2VO: t-BuOOH ratio above 1:10 liberation of oxygen partially in the singlet state takes place.

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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Application of 3153-26-2, Because a catalyst decreases the height of the energy barrier, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.3153-26-2, Name is Vanadyl acetylacetonate, molecular formula is C10H14O5V. In a article，once mentioned of 3153-26-2

Vanadium oxide thin films were prepared by chemical vapor deposition using as precursors a series of vanadyl complexes of general formula VO(L)2(H), where L is a beta-diketonate ligand. The depositions were carried out on alpha-Al2O3 subtrates in O2, N2, and N2 + H2O atmospheres. In order to elucidate the role played by different ligands and synthesis conditions on the properties of the obtained films, the chemical composition of the samples was investigated by X-ray photoelectron spectroscopy, while their microstructure and surface morphology were analyzed by X-ray diffraction, Raman and atomic force microscopy. The thermal decomposition of the precursors, with particular attention to their reactivity in the presence of water vapor, was studied by mass spectrometry and Fourier transform infrared spectroscopy.

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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Synthetic Route of 3153-26-2, Because a catalyst decreases the height of the energy barrier, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.3153-26-2, Name is Vanadyl acetylacetonate, molecular formula is C10H14O5V. In a article，once mentioned of 3153-26-2

The Schiff bases {H3dfmp-(smdt)2} (I), {H3dfmp-(sbdt)2} (II) and {H3dfmp-(tsc)2} (III) are synthesized by reaction of 2,6-diformyl-4-methylphenol (H3dfmp) and S-methyldithiocarbazate (smdt), S-benzyldithiocarbazate (sbdt) and thiosemicarbazide (tsc), respectively. Addition of [VIVO(acac)2] to solutions of these compounds in methanol leads to the formation of the oxidovanadium(iv) complexes [VIVO{Hdfmp-(smdt)2(CH3OH)}] (1), [VIVO{Hdfmp-(sbdt)2(CH3OH)}] (2) and [VIVO{Hdfmp-(tsc)2(CH3OH)}] (3). All these VIVO-compounds can be oxidized to the corresponding dioxidovanadium(v) (VVO2) complexes in methanolic solution upon aerial oxidation in the presence of KOH. The isolated compounds are K[VVO2{Hdfmp-(smdt)2}] (4), K[VVO2{Hdfmp-(sbdt)2}] (5) and K[VVO2{Hdfmp-(tsc)2}] (6). The Cs+ salts of these complexes i.e. Cs[VVO2{Hdfmp-(smdt)2}] (7), Cs[VVO2{Hdfmp-(sbdt)2}] (8) and Cs[VVO2{Hdfmp-(tsc)2}] (9) are prepared similarly in the presence of CsOH. All these compounds are characterized by various spectroscopic techniques like FT-IR, UV-visible, and 1H and 51V NMR and thermal studies. IR spectral data confirm the coordination of ligands through the azomethine nitrogen, the sulphur and the phenolic oxygen atoms to the metal. These complexes show excellent catalytic activity and selectivity for the oxidation of benzyl alcohol and ethylbenzene in the presence of H2O2 as an oxidant. Various parameters such as the amount of catalyst and oxidant, reaction time, reaction temperature and solvent were taken into consideration to optimize these catalytic oxidations. Compound 7 was also remarkably efficient and selective in the catalytic oxidation of primary and secondary alcohols to the corresponding aldehyde/ketone, as well as of several aromatic compounds such as toluene, benzene, cumene and tetralin.

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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

Application of 3153-26-2, Because a catalyst decreases the height of the energy barrier, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.3153-26-2, Name is Vanadyl acetylacetonate, molecular formula is C10H14O5V. In a article，once mentioned of 3153-26-2

The synthesis and the structural characterization of symmetric dimers containing uranium and vanadium atoms provide an outstanding opportunity for the study of hydrogen bonding in supramolecular architectures and unusual interactions. On the search of ligands able to coordinate itself to two metal ions simultaneously, we have synthesized the Schiff bases bis((3-hydroxy-5- (hydroxymethyl)-2-methylpyridin-4-yl)methylene) oxalohydrazide (H 6Pyr2oxdihyd) and bis((3-hydroxy-5-(hydroxymethyl)-2- methylpyridin-4-yl)methylene) succinohydrazide (H10pyr 2sucdihyd), efficient symmetric ligands with an inversion center, obtained through the reaction of pyridoxine/pyridoxal hydrochloride with oxalyl dihydrazide and succinic dihydrazide. Their reactions and the products obtained with the oxofilic uranyl(VI) and vanadyl(V) cations were discussed, as well as computational methods were used as complementary tools in the study of intra and intermolecular bonds.

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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI

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

Two new oxidovanadium(V) complexes, [VO(L1)(L)] (I) and [VO(L2)(L)] (II), where L1 and L2 are the dianionic form of N’-(2-hydroxy-5-methoxybenzylidene)pivalohydrazide (H2L1) and N’-(2-hydroxy-3-methoxybenzylidene)pivalohydrazide (H2L2), respectively, and L is the monoanionic form of 8-hydroxyquinoline (HL), were prepared and characterized by elemental analysis, infrared and electronic spectra, and 1H NMR spectra. Structures of the complexes were further confirmed by single crystal X-ray determination (CIF files CCDC nos. 1477854 (I), 1477856 (II)). H2L1 and H2L2 coordinate to the V atoms through the phenolate O, imino N, and enolate O atoms. 8-Hydroxyquinoline coordinates to the V atoms through bidentate ON donor set. The V atoms of the complexes are in octahedral coordination with the oxo group furnished the octahedral geometry. The complexes show effective antibacterial activity against Bacillus subtilis.

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Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI