Bis(1,5-cyclooctadiene)dimethoxydiiridium
[CAS# 12148-71-9]

Identification

• Classification: Catalysts and additives >> Precious metal catalyst
• Name: Bis(1,5-cyclooctadiene)dimethoxydiiridium
• Synonyms: Bis[(1,5-cyclooctadiene)(methanolato)iridium]
• Molecular Formula: C₁₈H₃₀Ir₂O₂
• Molecular Weight: 662.87
• CAS Registry Number: 12148-71-9
• EC Number: 628-411-6
• SMILES: C[OH2+].C[OH2+].C1/C=CCC/C=CC1.C1/C=CCC/C=CC1.[Ir].[Ir]

Properties

• Melting point: 154-179 °C

Safety Data

• Hazard Symbols: GHS07 Warning
• Risk Statements: H315-H319-H335
• Safety Statements: P261-P264-P264+P265-P271-P280-P302+P352-P304+P340-P305+P351+P338-P319-P321-P332+P317-P337+P317-P362+P364-P403+P233-P405-P501

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Eye irritation	Eye Irrit.	2	H319
Specific target organ toxicity - single exposure	STOT SE	3	H335
Skin irritation	Skin Irrit.	2	H315

Discovery and Applications

Bis(1,5-cyclooctadiene)dimethoxyiridium is an important compound in the field of organometallic chemistry that has attracted much attention due to its unique structure and wide range of applications in various scientific and industrial fields. The compound was first synthesized and described as a coordination compound of iridium with two 1,5-cyclooctadiene (COD) ligands and two methoxy groups (-OCH3). This molecular structure forms a stable organometallic complex with the iridium atom coordinated in a manner that promotes catalytic activity and chemical reactivity. The presence of COD ligands and methoxy groups influences its stability and catalytic properties, making it a valuable catalyst in organic synthesis and catalysis. Bis(1,5-cyclooctadiene)dimethoxyiridium exhibits unique chemical properties due to its structure. The COD ligands provide π-bond interactions that stabilize the complex, while the methoxy groups regulate its solubility and reactivity in different solvents. This combination allows for a variety of applications in catalytic processes, where the complex acts as a catalyst or precursor for various organic transformations.

The main application of bis(1,5-cyclooctadiene)dimethoxyiridium is in catalysis, especially in homogeneous catalytic reactions. It is an effective catalyst in hydrogenation, hydrosilylation, and carbon-carbon bond formation reactions. The presence of the methoxy group enhances its solubility in organic solvents, facilitating its use in solution-phase reactions for efficient substrate coordination and transformation.

In industrial settings, bis(1,5-cyclooctadiene)dimethoxyiridium can be used in the synthesis of fine chemicals and pharmaceutical intermediates. Its ability to catalyze selective reactions under mild conditions facilitates the development of efficient synthetic routes and the production of high-value compounds. Researchers have also explored its potential in the synthesis of functional materials and polymers, using its catalytic properties to tailor materials for specific applications.

Beyond catalysis, bis(1,5-cyclooctadiene)dimethoxyiridium has also facilitated advances in materials science. Its role in the synthesis of metal-organic frameworks (MOFs) and coordination polymers demonstrates its versatility in designing new materials with tailored properties. These materials can be used in gas storage, separation technologies, and sensing devices, highlighting the impact of this compound on emerging technologies.

References

none