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Dicarbonylcyclopen-Tadienyl Cobalt

Chemical Formula: CpCo(CO)₂
CAS: 12078-25-0

CpCo(CO)₂ is a volatile cobalt precursor with a stable carbonyl structure and excellent reactivity, enabling the production of conformal, low-resistivity films suitable for interconnect applications. It is widely used in ALD and CVD processes for thin-film deposition in advanced semiconductor manufacturing, playing a vital role in materials science and organometallic chemistry.
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Dicarbonylcyclopen-Tadienyl Cobalt Basic Properties

  • Appearance: Dark red liquid

  • Molecular Weight: 180.05

  • Melting Point: -22 °C

  • Boiling Point: 139-140 °C710 mm Hg(lit.)

  • Density: 1.35

  • Storage Conditions: 2-8°C

  • Solubility: Soluble in organic solvents; insoluble in water

Dicarbonylcyclopen-Tadienyl Cobalt Key Features

High purity and high activity

Dicarbonylcyclopen-tadienyl cobalt possesses high purity and excellent reactivity, ensuring efficient catalytic performance in complex organic reactions.

Good solubility

CpCo(CO)₂ has good solubility in a variety of organic solvents, facilitating its inclusion in solution reactions and enhancing the uniformity of the catalytic reaction.

Stable metal carbonyl structure

The strong coordination between the cobalt atom and the carbonyl group in the CpCo(CO)₂ molecule imparts thermal stability, allowing it to exist stably within a certain temperature range.

Precursors for various organometallic reactions

As an intermediate, this compound can be used to synthesize more complex cobalt complexes and is an important reagent for studying the formation mechanism of metal-carbon bonds.

Dicarbonylcyclopen-Tadienyl Cobalt Main Applications

Catalysis in organic synthesis

Dicarbonylcyclopen-tadienyl cobalt can catalyze a variety of reactions, such as olefin hydrogenation, carbonylation, and free radical reactions, and is used to synthesize pharmaceutical intermediates and polymer precursors.

Organometallic research

As a typical metal carbonyl complex, it is an ideal model compound for studying the electronic effects of metal centers and the interaction with ligands.

CVD/ALD precursor

CpCo(CO)₂ is used to prepare cobalt or cobalt oxide thin films in chemical vapor deposition and is an important metal source in the manufacture of microelectronic devices.

Functional material synthesis

Used to synthesize cobalt-based nanoparticles, magnetic materials and optical functional materials, and enhance material performance and surface properties.

Precautions

  1. CpCo(CO)₂ is easily oxidized or decomposed by light, so the operation must be carried out under the protection of inert gas.

  2. Heating may cause the removal of carbonyl groups and the generation of carbon monoxide, so the operation must be carried out in a fume hood.

  3. Avoid breathing dust or vapor; in case of skin contact, wash immediately and thoroughly with soap and water.

  4. It is recommended to store in a light-proof, airtight container at a temperature between 2–8°C.

  5. In case of fire, use dry powder fire extinguisher or carbon dioxide fire extinguisher and avoid using water-containing fire extinguishing materials.

FAQ

1. Is CpCo(CO)₂ stable in air?

No. CpCo(CO)₂ is easily oxidized, photolyzed, or decomposed in air and should be stored and handled under an inert atmosphere.


2. What are some alternative or similar cobalt carbonyl compounds?

You can refer to cobalt tricarbonyl (Co₂(CO)₈) or cyclopentadienylcobalt tricarbonyl (CpCo(CO)₃), which have similar catalytic and coordination properties in organic synthesis.


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