Bis(ethylcyclopentadienyl)hafnium(IV) dichloride
Bis(ethylcyclopentadienyl)hafnium(IV) dichloride (CAS 78205-93-3), with the empirical formula C14H18Cl2Hf and a molecular weight of 435.69 g/mol, is a hafnium compound utilized in chemical synthesis. It serves as a key reactant in the preparation of specific organometallic complexes, notably stable Schrock-type hafnium silylene complexes. This compound is supplied by TSS with an assay of 95%, suitable for research and development applications in catalysis and inorganic chemistry.
- IUPAC
- Dichlorobis[(1,2,3,4,5-η)-1-ethyl-2,4-cyclopentadien-1-yl]hafnium

Synthesis of Organometallic Complexes
This hafnium dichloride is employed as a precursor in the synthesis of advanced organometallic compounds. It is specifically documented as a reactant for creating stable Schrock-type hafnium silylene complexes, contributing to novel catalyst development.
Research and Development in Catalysis
The compound's structure and reactivity make it valuable in catalysis research, particularly within inorganic chemistry. Its use enables the exploration of new catalytic pathways and materials for various chemical transformations.
Chemical Synthesis Intermediate
As a versatile intermediate, Bis(ethylcyclopentadienyl)hafnium(IV) dichloride facilitates the construction of more complex hafnium-containing molecules. It is essential for laboratories engaged in advanced chemical synthesis and materials science.
| Molecular weight | 435.69 |
|---|---|
| Empirical formula | C14H18Cl2Hf |
| Assay | 95% |
| Application | Reactant for synthesis of stable Schrock-type hafnium silylene complex1 |
| Melting point | 220 °C (dec.)(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Bis(ethylcyclopentadienyl)hafnium(IV) dichloride primarily used for?
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It is used as a reactant for the synthesis of stable Schrock-type hafnium silylene complexes and in general chemical synthesis within catalysis and inorganic chemistry research.
What is the CAS number and formula for Bis(ethylcyclopentadienyl)hafnium(IV) dichloride?
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The CAS number is 78205-93-3 and the empirical formula is C14H18Cl2Hf.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Bis(ethylcyclopentadienyl)hafnium(IV) dichloride with an assay of 95%. This is a technical/research grade material and is not represented as USP, BP, or EP.
How should Bis(ethylcyclopentadienyl)hafnium(IV) dichloride be handled?
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Handle this compound with appropriate personal protective equipment, including a dust mask type N95, eyeshields, and gloves. Ensure good ventilation. It is classified as a Warning with hazards H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation).
How is Bis(ethylcyclopentadienyl)hafnium(IV) dichloride packed and shipped?
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We ensure secure packaging suitable for chemical reagents and export worldwide, adhering to all relevant shipping regulations for hazardous materials.
How can I request a quote or sample?
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To request a quote or sample, please contact our sales department via the website or direct email, providing your specific requirements.
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