Bis(pentamethylcyclopentadienyl)iron(II)
Bis(pentamethylcyclopentadienyl)iron(II), commonly known as decamethylferrocene (CAS 12126-50-0), is an organometallic iron(II) sandwich compound with the formula Fe(C5(CH3)5)2 and a molar mass of 326.30 g/mol. Supplied as a solid at 97% assay, this permethylated ferrocene analogue is an air-stable, electron-rich metallocene. It is used principally as a vapour-deposition (CVD/ALD) precursor for iron-bearing films and as a reference compound in electrochemistry and inorganic synthesis.
- IUPAC
- Decamethylferrocene
- Synonyms
- DecamethylferroceneBis(pentamethylcyclopentadienyl)iron(II)Bis(pentamethylcyclopentadienyl)ironIron, bis[(1,2,3,4,5-eta)-1,2,3,4,5-pentamethyl-2,4-cyclopentadien-1-yl]-DmFcMe10FcFe(C5(CH3)5)2

CVD and ALD precursor
Serves as a volatile, iron-bearing precursor for chemical and atomic layer deposition. It is applied in materials science and micro/nanoelectronics to deposit iron-containing thin films and coatings.
Electrochemical reference standard
The decamethylferrocene/decamethylferrocenium couple is a widely used, reversible redox reference in non-aqueous voltammetry. Its electron-rich ring substitution gives a more negative, well-defined potential than ferrocene itself.
Catalysis and inorganic chemistry
Acts as a strong one-electron reductant and a building block in organometallic and coordination chemistry. The permethylated cyclopentadienyl ligands provide steric bulk and enhanced electron density for ligand and complex studies.
Research and chemical synthesis
Used as a model metallocene for studying structure, bonding and redox behaviour, and as an intermediate in the preparation of further iron(II) organometallic derivatives.
| Molecular weight | 326.30 |
|---|---|
| Linear formula | Fe(C5(CH3)5)2 |
| Assay | 97% |
| Form | solid |
| Melting point | 277 °C (dec.)(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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(pentamethylcyclopentadienyl)iron(II) used for?
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It is used mainly as a CVD and ALD precursor for depositing iron-containing thin films, as a reversible redox reference standard in non-aqueous electrochemistry, and as a one-electron reductant and building block in catalysis and organometallic synthesis. It is supplied for research and industrial applications.
What is the CAS number and molecular formula of Bis(pentamethylcyclopentadienyl)iron(II)?
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The CAS number is 12126-50-0 and the molecular formula is Fe(C5(CH3)5)2, with a molecular weight of 326.30 g/mol. It is also known as decamethylferrocene (MDL number MFCD00058736; PubChem Substance ID 24863562).
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this material as a solid at 97% assay, offered as a technical/research grade. We do not represent it as USP, BP or EP pharmacopoeia grade. A Certificate of Analysis can be provided with each consignment on request.
How should Bis(pentamethylcyclopentadienyl)iron(II) be handled and stored safely?
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Handle with suitable eye protection, gloves and an N95 (US) or P1 (EN143) respirator filter, using good laboratory ventilation and avoiding dust generation. The material is assigned German Water Hazard Class (WGK) 3, meaning it is severely hazardous to water, so prevent release to drains and watercourses. Always consult the current Safety Data Sheet before use.
How is Bis(pentamethylcyclopentadienyl)iron(II) packed, shipped and exported?
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The solid is packed in sealed, appropriately labelled containers sized to your order and shipped with full documentation, including the Safety Data Sheet and Certificate of Analysis. Tech Serve Solutions exports worldwide in compliance with applicable transport and customs requirements.
How do I request a sample or quote?
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Contact Tech Serve Solutions with your required quantity, purity and destination, and our team will respond with availability, packing options and a formal quotation. Samples can be arranged for qualified applications on request.
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