Bis(cyclopentadienyl)tungsten(IV) dihydride
Bis(cyclopentadienyl)tungsten(IV) dihydride (CAS 1271-33-6) is an organotungsten metallocene with the formula C10H12W and a molar mass of 316.04 g/mol. Also called tungstocene dihydride, this air- and moisture-sensitive solid (m.p. 115 °C) is supplied at 97% assay. It is used principally as a tungsten source in vapour-deposition (CVD/ALD) processes and as a precursor in catalysis, inorganic and organometallic synthesis. Tech Serve Solutions supplies it as a research-grade material to laboratories worldwide.
- Synonyms
- Bis(cyclopentadienyl)tungsten(IV) dihydrideTungstocene dihydrideDihydridobis(cyclopentadienyl)tungsten(IV)Dicyclopentadienyltungsten dihydrideBis(eta5-cyclopentadienyl)tungsten dihydride(C5H5)2WH2
Tungsten CVD/ALD precursor
Serves as a volatile tungsten source for chemical vapour deposition (CVD) and atomic layer deposition (ALD) of tungsten-containing thin films. Its defined molecular structure makes it suitable for controlled deposition in materials-science workflows.
Microelectronics and thin-film research
Used in micro- and nanoelectronics research where tungsten or tungsten-based layers are deposited onto substrates. Typical applications are at laboratory and process-development scale rather than as a finished electronic material.
Organometallic synthesis
Acts as a well-defined tungstocene building block in organometallic chemistry, providing a reactive W(IV) dihydride centre for the preparation of further tungsten complexes and study of metal-hydride reactivity.
Catalysis and inorganic chemistry
Employed as a reference compound and reagent in catalysis and inorganic chemistry investigations involving early-transition-metal metallocene hydrides.
| Molecular weight | 316.04 |
|---|---|
| Empirical formula | C10H12W |
| Assay | 97% |
| Melting point | 115 °C(lit.) |
Hazard statements
- H261In contact with water releases flammable gas
- H314Causes severe skin burns and eye damage
Precautionary statements
- P231Handle under inert gas
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
- P422
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Flash point | >110 °C / >230 °F |
| Transport (UN / ADR) | UN 3131 4.3/PG 2 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,C |
| Risk statements (R) | 14/15-34 |
| Safety statements (S) | 26-36/37/39-45 |
| Supplemental hazards | Reacts violently with water. |
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(cyclopentadienyl)tungsten(IV) dihydride used for?
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It is used chiefly as a tungsten precursor in chemical vapour deposition (CVD) and atomic layer deposition (ALD), and as a reagent in catalysis, inorganic chemistry and organometallic synthesis. It is a research-grade material intended for laboratory and process-development use.
What is the CAS number and molecular formula of Bis(cyclopentadienyl)tungsten(IV) dihydride?
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The CAS number is 1271-33-6 and the molecular formula is C10H12W (Hill notation), with a molecular weight of 316.04 g/mol. The MDL number is MFCD04126433 and the PubChem Substance ID is 24873535.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this product at a typical assay of 97% as a research/technical-grade reagent. We do not represent it as USP, BP or EP pharmacopoeial grade. A certificate of analysis is provided with each batch; please share your specification on enquiry.
What are the safety and handling hazards of Bis(cyclopentadienyl)tungsten(IV) dihydride?
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It carries GHS02 and GHS05 pictograms with the signal word Danger. It reacts violently with water and, in contact with water, releases flammable gases (H261); it also causes severe skin burns and eye damage (H314). Handle under dry inert atmosphere, keep away from moisture and ignition sources, and use eye, face and skin protection with an appropriate respirator (type N100/P3). Consult the SDS before use.
How is Bis(cyclopentadienyl)tungsten(IV) dihydride packed, shipped and exported?
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It is a water-reactive solid classified as UN 3131, transport class 4.3, packing group II, and is packed under inert, moisture-excluding conditions in sealed containers. It is shipped as dangerous goods in compliance with applicable IATA/IMDG/ADR regulations, with full export documentation for international destinations.
How do I request a sample or quote?
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Contact Tech Serve Solutions with your required quantity, purity specification and destination country. We will confirm availability, packing, lead time and the necessary dangerous-goods and export documentation, and issue a formal quotation.
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