Bis(ethylcyclopentadienyl)ruthenium
[CAS# 32992-96-4]

Identification

• Classification: Organic raw materials >> Organometallic compound >> Organic ruthenium
• Name: Bis(ethylcyclopentadienyl)ruthenium
• Synonyms: 1,1'-Diethylruthenocene; Bis(ethyl-pi-cyclopentadienyl)ruthenium
• Molecular Formula: C₁₄H₁₈Ru
• Molecular Weight: 287.36
• CAS Registry Number: 32992-96-4
• EC Number: 626-581-6
• SMILES: CCC1=C(CC=C1)[Ru]C2=C(C=CC2)CC

Properties

• Density: 1.3412 g/mL (25 °C)
• Melting point: 6 °C
• Boiling point: 100 °C (0.01 mmHg)
• Refractive index: 1.422
• Flash point: 31 °C

Safety Data

• Hazard Symbols: GHS07 Warning
• Risk Statements: H315-H319-H335
• Safety Statements: P261-P305+P351+P338

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin irritation	Skin Irrit.	2	H315
Specific target organ toxicity - single exposure	STOT SE	3	H335
Eye irritation	Eye Irrit.	2	H319
Acute toxicity	Acute Tox.	4	H332
Acute toxicity	Acute Tox.	4	H312
Chronic hazardous to the aquatic environment	Aquatic Chronic	4	H413
Specific target organ toxicity - single exposure	STOT SE	3	H336
Acute toxicity	Acute Tox.	4	H302

Discovery and Applications

Bis(ethylcyclopentadienyl)ruthenium, with the chemical formula C12H18Ru, is an organometallic compound featuring a ruthenium center coordinated by two ethylcyclopentadienyl ligands. This compound belongs to the class of metallocenes, which are characterized by their sandwich-like structure with a central metal atom enclosed between two cyclopentadienyl rings. Bis(ethylcyclopentadienyl)ruthenium is notable for its applications in various fields of chemistry, including catalysis and materials science.

The discovery of bis(ethylcyclopentadienyl)ruthenium is part of the broader exploration of metallocenes and their potential applications. The synthesis of this compound involves the coordination of ruthenium with ethylcyclopentadienyl ligands. This process typically starts with the preparation of the cyclopentadienyl ligands, which are then reacted with a ruthenium precursor to form the metallocene complex. The ethyl group on the cyclopentadienyl rings influences the electronic and steric properties of the compound, affecting its reactivity and stability.

In catalysis, bis(ethylcyclopentadienyl)ruthenium is used as a catalyst for a variety of organic transformations. Its effectiveness in catalysis is attributed to the electronic and steric properties imparted by the cyclopentadienyl ligands. For example, it has been utilized in hydrogenation reactions, where it facilitates the addition of hydrogen to unsaturated organic compounds. Additionally, this compound plays a role in olefin polymerization, where it acts as a catalyst to produce polymers with specific properties.

The applications of bis(ethylcyclopentadienyl)ruthenium extend beyond catalysis to materials science. It is used in the synthesis of novel materials and complexes with tailored properties. For instance, it can be employed in the development of new types of organic-inorganic hybrid materials, which have potential uses in electronics and energy storage. The ability to modify the ligands and metal center in such compounds allows for fine-tuning of their properties for specific applications.

In summary, bis(ethylcyclopentadienyl)ruthenium is a versatile organometallic compound with significant applications in catalysis and materials science. Its discovery has contributed to the development of new catalytic processes and advanced materials, highlighting its importance in both academic research and industrial applications.

References

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