Bis(cyclopentadienyl)cobalt(II), min. 98% (Cobaltocene)

Product Introduction

Cobaltocene (CAS No. 1277-43-6) is an organometallic metallocene consisting of a cobalt center coordinated by two cyclopentadienyl rings. It is an important cobalt-containing compound for organometallic chemistry, electrochemistry, catalysis, and redox research.

Cobaltocene exhibits well-defined and reversible redox behavior, making it particularly useful as a one-electron reducing agent and electrochemical reference material. It is also investigated in catalytic reactions and the preparation of cobalt-containing organometallic compounds.

Mechanism / Principle

Redox and Electron-Transfer Function

Cobaltocene is notable for its reversible one-electron oxidation and reduction chemistry.

In research applications:

• The cobalt-containing metallocene structure enables electron-transfer processes.
• Cobaltocene can act as a one-electron reducing agent.
• Its stable redox characteristics make it useful in cyclic voltammetry.
• Electron transfer involving the cobalt center can be studied in organometallic and electrochemical systems. 

The compound can therefore serve as a useful model system for investigating redox chemistry, electron transfer, and organometallic reaction mechanisms.

Key Research Applications

1. Electrochemical Research

Cobaltocene is widely used in electrochemical studies because of its characteristic redox behavior.

Applications include:

• Cyclic voltammetry
• Redox potential measurements
• Electron-transfer studies
• Electrochemical reference systems
• Organometallic electrochemistry

FUJIFILM Wako specifically identifies Cobaltocene as a reference material for cyclic voltammetry because of its stable oxidation/reduction characteristics.

2. One-Electron Reducing Agent

Cobaltocene is used as a reducing agent in synthetic and organometallic chemistry.

Applications include:

• One-electron reduction
• Radical generation
• Electron-transfer reactions
• Reduction of organometallic species
• Redox-state control

Thermo Fisher describes bis(cyclopentadienyl)cobalt as a common one-electron reducing agent in laboratory research.

3. Organometallic Synthesis

Cobaltocene is an important compound for organometallic chemistry and cobalt coordination research.

Applications include:

• Cobalt complex synthesis
• Metallocene chemistry
• Organometallic reaction studies
• Preparation of cobalt(I) derivatives
• Coordination chemistry

Cobaltocene can react with carbon monoxide to form cyclopentadienylcobalt dicarbonyl, providing access to additional cobalt-containing organometallic compounds.

4. Catalysis Research

Cobaltocene and related cobalt complexes are investigated in catalytic organic transformations.

Applications include:

• Alkyne chemistry
• Nitrile transformations
• Pyridine synthesis
• Cobalt-mediated reactions
• Organometallic catalysis

Bis(cyclopentadienyl)cobalt has been reported for catalytic preparation of pyridines from alkynes and nitriles.

5. Diels–Alder and Organic Reaction Research

Cobaltocene-related cobalt chemistry can be applied to organic reaction development.

Applications include:

• Diels–Alder reaction studies
• Cobalt-mediated organic synthesis
• Reactive intermediate research
• Synthetic methodology development 

Advantages

• Well-defined organometallic structure
• Characteristic reversible redox behavior
• Useful one-electron reducing agent
• Suitable for cyclic voltammetry research
• Valuable reagent for organometallic synthesis
• Applicable to cobalt coordination chemistry
• Useful in catalytic and synthetic chemistry research

Storage & Handling

• Store in a tightly sealed container.
• Keep in a cool, dry environment.
• Protect from air and moisture.
• Handle under an inert atmosphere when required.
• Research-grade material may be packaged under argon to minimize exposure to air and moisture. 
• FUJIFILM Wako specifies storage at 2–10°C for its Cobaltocene product. 
• Avoid contact with strong oxidizing agents.
• Consult the product-specific SDS before handling.

Research Areas

Researchers working in the following fields may benefit from Cobaltocene (CAS No. 1277-43-6):

• Organometallic chemistry
• Electrochemistry
• Redox chemistry
• Coordination chemistry
• Cobalt chemistry
• Catalysis
• Organic synthesis
• Electron-transfer research
• Metallocene chemistry
• Materials chemistry

Q1: What is Cobaltocene?

A: Cobaltocene is an organometallic metallocene containing a cobalt center coordinated by two cyclopentadienyl rings. Its CAS number is 1277-43-6.

Q2: What is Cobaltocene used for?

A: Cobaltocene is mainly used in electrochemical research, one-electron reduction, organometallic synthesis, catalysis, and redox studies.

Q3: What is the molecular formula of Cobaltocene?

A: The molecular formula is C₁₀H₁₀Co, with a molecular weight of approximately 189.12 g/mol.

Q4: What is another name for Cobaltocene?

A: Common synonyms include Bis(cyclopentadienyl)cobalt, Bis(cyclopentadienyl)cobalt(II), and Dicyclopentadienylcobalt.

Q5: Is Cobaltocene used in cyclic voltammetry?

A: Yes. Its stable oxidation/reduction characteristics make it useful as a reference material in cyclic voltammetry research.

Q6: Is Cobaltocene a reducing agent?

A: Yes. Cobaltocene is commonly used as a one-electron reducing agent in laboratory research.

Q7: Is Cobaltocene air sensitive?

A: Cobaltocene is reported as air- and moisture-sensitive, so it should be protected from air and moisture and handled under inert conditions when appropriate.

Q8: How should Cobaltocene be stored?

A: Store tightly sealed in a cool, dry environment and protect from air and moisture. A commercial Wako specification recommends 2–10°C storage.