Zirconium(IV) Acetylacetonate丨CAS 17501-44-9

Zirconium(IV) acetylacetonate丨CAS 17501-44-9 is a coordination compound with the formula Zr(C₅H₇O₂)₄, commonly referred to as Zr(acac)₄. It is a yellow, crystalline solid that is soluble in organic solvents and thermally stable, making it valuable in multiple industrial and scientific domains. It features zirconium metal coordinated with four acetylacetonate (acac) ligands, conferring both volatility and stability.

1. Catalysis and Organic Synthesis
Zirconium(IV) acetylacetonate serves as a Lewis acid catalyst in various organic transformations, such as:
● Aldol and Michael additions
● Esterification and transesterification reactions
● Polymerization of olefins and lactones
Its ability to activate carbonyl and other electrophilic centers makes it particularly useful in fine chemical and pharmaceutical synthesis.
2. Precursor in Material Science
Due to its thermal stability and volatility, Zr(acac)₄ is used as a metal-organic precursor in the fabrication of zirconium-containing thin films, especially via:
● Sol-gel processes
● Chemical vapor deposition (CVD)
● Atomic layer deposition (ALD)
These applications are critical in producing high-performance ceramics, protective coatings, and optical materials.
3. Dielectric and Optical Materials
Zirconium oxide (ZrO₂), derived from Zr(acac)₄, is widely used as a dielectric layer in electronics and optical coatings due to its high refractive index, chemical stability, and low electrical conductivity. Zr(acac)₄ is an ideal precursor due to its clean decomposition profile.
4. Additive in Polymer Composites
Zirconium(IV) acetylacetonate丨CAS 17501-44-9 can be used as a crosslinking agent or filler modifier in polymer and resin systems, improving:
● Thermal stability
● Mechanical properties
● UV resistance
It is often used in high-performance plastics, epoxies, and coatings for industrial or aerospace applications.
5. Research and Development
In academic and industrial research, Zr(acac)₄ is employed in studies related to coordination chemistry, metal–ligand bonding, and metal-organic frameworks (MOFs). Its well-defined structure and reactivity make it a useful model compound for developing new zirconium-based materials.

1. Excellent Thermal and Chemical Stability
Zirconium(IV) acetylacetonate丨CAS 17501-44-9 resists degradation under heat and in inert atmospheres, making it ideal for high-temperature processes and long-term applications in materials science.
2. Controlled Decomposition for Clean Film Formation
In CVD and sol-gel processing, it decomposes predictably to form high-purity zirconium oxide with minimal carbon residues, allowing precise control over film thickness, morphology, and stoichiometry.
3. Versatile Solubility and Process Compatibility
It dissolves in a variety of organic solvents, allowing flexibility in formulation and processing methods, whether in solution-phase reactions or thin-film deposition.
4. Low Toxicity Compared to Other Metal Precursors
Zr(acac)₄ generally exhibits lower toxicity and environmental impact compared to many other metal-organic compounds, making it more suitable for laboratory use and scalable industrial applications.