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Vanadyl acetylacetonate
Vanadyl acetylacetonate (CAS 3153-26-2), also known as bis(acetylacetonato)oxovanadium(IV) or VO(acac)₂, is a versatile vanadium(IV) coordination complex engineered for catalysis, materials science, and bioinorganic research applications. This molecule integrates a paramagnetic vanadyl core (VO²⁺) with two bidentate acetylacetonate (acac) ligands, creating a stable square-pyramidal geometry that balances reactivity with thermal stability. The labile oxo ligand and coordinatively unsaturated vanadium center enable efficient oxygen atom transfer, radical initiation, and Lewis acid catalysis, while the chelating acac ligands provide solubility in organic media and volatility suitable for vapor-phase deposition techniques. This intermediate is particularly valuable for constructing oxidation catalysts, chemical vapor deposition (CVD) precursors for vanadium oxide thin films, polymerization initiators, and model compounds for studying vanadium-dependent enzymes such as haloperoxidases and nitrogenases. Manufactured with purity ≥98% under controlled conditions, it supports research programs requiring reliable vanadium sources with well-defined coordination chemistry and tunable redox properties.
Property
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Product Name
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Vanadyl acetylacetonate
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CAS Number
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3153-26-2
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Chinese Name
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乙酰丙酮氧钒 (IV)
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Synonyms
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Bis(acetylacetonato)oxovanadium(IV); VO(acac)₂; Vanadyl(IV) acetylacetonate; Oxovanadium(IV) bis(acetylacetonate);
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Chinese Synonyms
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双 (乙酰丙酮) 氧钒; 氧钒 (IV) 乙酰丙酮; 乙酰丙酮钒酰;
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Molecular Formula
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C₁₀H₁₄O₅V
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Molecular Weight
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265.16 g/mol
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Purity
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≥ 98% (elemental analysis/HPLC)
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Product Category
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Fine Chemicals / Coordination Compounds / Vanadium Precursors
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Appearance
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Blue to Blue-Green Crystalline Powder or Solid
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Melting Point
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~230-235°C (decomposition, literature reference recommended)
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Magnetic Properties
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Paramagnetic (d¹ configuration, S = 1/2); EPR-active
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Solubility
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Soluble in chloroform, dichloromethane, ethanol; sparingly soluble in water
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Storage Conditions
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Store in a cool, dry, well-ventilated area away from light and moisture. Keep container tightly closed under inert atmosphere (nitrogen or argon). Protect from strong oxidizing agents and bases to avoid oxidation to V(V) or ligand displacement.
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Shelf Life
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24 months under recommended storage conditions
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Packaging
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1g/bottle, 5g/bottle, 10g/bottle, 25g/bottle, or customized according to customer requirements (amber glass, sealed with PTFE liner)
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Applications
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Oxidation catalysis (alkene epoxidation, alcohol oxidation), CVD/ALD precursor for VO₂/V₂O₅ thin films, polymerization catalyst (olefin polymerization), bioinorganic model studies (vanadium enzymes), EPR spectroscopy standard, organic synthesis reagent
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Reactivity
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Suitable for oxygen atom transfer reactions, radical initiation, Lewis acid catalysis, ligand exchange, thermal decomposition to vanadium oxides, and redox cycling between V(IV)/V(V) states
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Special Note
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✅ Paramagnetic Vanadyl Complex—EPR-active d¹ system ideal for spectroscopic studies. Thermally Stable Volatile Precursor—suitable for vapor-phase deposition. Part of our transition metal coordination compound series.
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