Description

Hafnium, Bis(1,3,5,7-Cyclooctatetraene)- is an organometallic compound of hafnium, specifically a metallocene, known for its role as a volatile precursor in advanced material synthesis. This compound is critical for depositing ultra-pure hafnium-containing films with exceptional uniformity and precise stoichiometric control. It is primarily utilized by manufacturers and researchers in the semiconductor, specialty ceramics, and catalysis sectors who require high-purity metal-organic sources for cutting-edge applications.

Application

• Atomic Layer Deposition (ALD) and Chemical Vapor Deposition (CVD): Serves as a key precursor for depositing hafnium oxide (HfO₂) high-k dielectric films in advanced semiconductor gate stacks and memory devices.
• Specialty Ceramics and Coatings: Used in the production of high-performance, oxidation-resistant hafnium carbide (HfC) or hafnium nitride (HfN) coatings for aerospace and cutting tool applications.
• Catalysis Research: Acts as a catalyst or catalyst precursor in organic synthesis and polymerization reactions, leveraging its unique organometallic structure.
• Nanomaterial Synthesis: Employed as a starting material for the controlled synthesis of hafnium-based nanoparticles and nanowires.
• Optical and Electronic Thin Films: Facilitates the growth of thin films for optical coatings and specialized electronic components.

Basic Information

Product Name	Hafnium, Bis(1,3,5,7-Cyclooctatetraene)-
CAS No.	39292-59-6
Molecular Formula	C₁₆H₁₆Hf
Molecular Weight	378.85 g/mol
Synonyms	Bis(cyclooctatetraene)hafnium; Hafnocene; Hafnium bis(η⁴-cyclooctatetraene); Dicyclooctatetraenehafnium; Hf(COT)₂; Hafnium(IV) bis(cyclooctatetraenyl); Organohafnium compound; Hafnium metallocene derivative
EINECS	Contact for details

Quality Control

Our Hafnium, Bis(1,3,5,7-Cyclooctatetraene)- is produced and handled under stringent quality management protocols to ensure batch-to-batch consistency and high purity, essential for sensitive deposition processes. Each lot is analyzed to confirm identity, purity, and impurity profiles. Certificates of Analysis (COA) detailing specific results are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at room temperature (15-25°C) under an inert atmosphere (e.g., argon or nitrogen) due to its moisture-sensitive and easily oxidized nature. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Yellow to orange crystalline solid or powder
Identification (IR)	Conforms to structure
Assay (Hf content)	≥ 95.0%
Purity (HPLC/GC)	≥ 98.0%
Volatile Residuals	Contact for details
Metallic Impurities (ICP-MS)	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.