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Bis(cyclooctadiene)nickel

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Identification
Molecular formula
C16H24Ni
CAS number
1295-35-8
IUPAC name
bis(η⁵-cyclooctadienyl)nickel
State
State

At room temperature, bis(cyclooctadiene)nickel is typically found as a solid.

Melting point (Celsius)
60.00
Melting point (Kelvin)
333.15
Boiling point (Celsius)
80.00
Boiling point (Kelvin)
353.15
General information
Molecular weight
240.08g/mol
Molar mass
240.0800g/mol
Density
1.2100g/cm3
Appearence

Bis(cyclooctadiene)nickel is a red crystalline solid.

Comment on solubility

Solubility of bis(η5-cyclooctadienyl)nickel

The solubility of bis(η5-cyclooctadienyl)nickel is an intriguing property, reflecting its unique structure and the interplay between its ligand and metal components. This compound, which features a nickel center coordinated by two molecules of cyclooctadiene, showcases notable characteristics in different solvents.

Key Points about Solubility:

  • Nonpolar Solvents: bis(η5-cyclooctadienyl)nickel tends to exhibit higher solubility in nonpolar solvents, such as hexane or toluene, due to its hydrophobic ligand environment.
  • Polar Solvents: It shows limited solubility in polar solvents like water or alcohols, largely because of the mismatch in polarity with its nonpolar characteristics.
  • Concentration Effect: The solubility can also depend on the concentration of the solute and temperature, where increasing temperature often increases solubility.

Understanding the solubility of this complex is crucial, not just for practical applications but also for explaining the behavior of similar organometallic compounds. As noted, “like dissolves like” serves as a guiding principle in assessing solubility in chemistry, highlighting the importance of solvent choice when working with such compounds.


In conclusion, bis(η5-cyclooctadienyl)nickel's solubility profile underscores the significance of molecular interactions, guiding scientists in its application across various fields, particularly in catalysis and material science.

Interesting facts

Interesting Facts about bis(η⁵-cyclooctadienyl)nickel

bis(η⁵-cyclooctadienyl)nickel, commonly referred to in the field of organometallic chemistry, contains fascinating characteristics that make it a subject of study for chemists and students alike. Here are some standout facts:

  • Organometallic Marvel: This compound exemplifies the intersection of organic and inorganic chemistry, showcasing the unique behaviors of transition metals when bonded to hydrocarbons.
  • Cyclooctadiene Symmetry: The use of η⁵-cyclooctadienyl ligands highlights the importance of symmetry and coordination in metal complexes, providing insight into how metal centers interact with organic ligands.
  • Reactivity and Catalysis: Researchers have explored the reactivity of bis(η⁵-cyclooctadienyl)nickel in various catalytic processes, particularly in polymerization reactions. This compound paves the way for advancements in synthetic routes to complex organic molecules.
  • Structure Analysis: Advanced techniques such as X-ray crystallography have been employed to determine the molecular structure of this compound, revealing its three-dimensional arrangement and the bond formation around nickel.
  • Role in Education: It serves as an excellent teaching tool for students learning about coordination chemistry, demonstrating principles of ligand bonding and the properties of transition metals.
  • Historical Significance: Discovered in the mid-20th century, bis(η⁵-cyclooctadienyl)nickel contributed to the understanding of metal-ligand interactions, influencing subsequent research in organometallics.

By studying bis(η⁵-cyclooctadienyl)nickel, chemists gain valuable insights not only into its unique properties but also into broader paradigms within the field of chemistry.