Chlorobis(cyclooctene)rhodium(I),dimer
Chlorobis(cyclooctene)rhodium(I), dimer (CAS: 12279-09-3) is a rhodium(I) complex with the empirical formula C32H56Cl2Rh2 and a molecular weight of 717.50. Supplied by TSS at 98% assay, this compound serves as a key precursor in organometallic chemistry and acts as a precatalyst for various synthetic transformations. Its applications span C-H bond activation, cycloisomerization, and C-C bond activation reactions, making it valuable in advanced chemical synthesis.
- IUPAC
- [Rh(coe)2Cl]2
- Synonyms
- Chlorobis(cyclooctene)rhodium(I), dimer[Rh(coe)2Cl]2

Precursor for Rhodium(I) Complexes
This dimer is a well-established precursor for the synthesis of various rhodium(I) complexes. It provides a convenient route to introduce the rhodium centre into new organometallic structures.
Precatalyst for C-H Bond Activation
It functions effectively as a precatalyst in reactions involving aryl- and vinyl-C-H bond activation. These transformations are crucial for the functionalisation of typically unreactive C-H bonds.
Catalyst for Cycloisomerization Reactions
The compound catalyses cycloisomerization reactions, enabling the formation of cyclic organic molecules. This is a powerful tool for constructing complex ring systems.
Catalyst for C-C Bond Activation
It is employed as a catalyst in C-C bond activation processes. This application is significant for synthetic strategies that involve the cleavage and reformation of carbon-carbon bonds.
Hydroiminoacylation Reactions
This rhodium complex catalyses hydroiminoacylation, a process that forms heterocyclic compounds from unsaturated substrates and imines.
| Molecular weight | 717.50 |
|---|---|
| Empirical formula | C32H56Cl2Rh2 |
| Assay | 98% |
| Application | Precusor for rhodium(I) and used as a precatalyst in a variety of reactions including aryl- and vinyl-C-H bond activation, hydroiminoacylation, cycloisomerization, and C-C bond activation |
| Melting point | 190 °C (dec.)(lit.) |

Hazard statements
- H302Harmful if swallowed
- H312Harmful in contact with skin
- H315Causes skin irritation
- H319Causes serious eye irritation
- H332Harmful if inhaled
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 20/21/22-36/37/38 |
| Safety statements (S) | 26-37/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Chlorobis(cyclooctene)rhodium(I), dimer used for?
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Chlorobis(cyclooctene)rhodium(I), dimer is used as a precursor for rhodium(I) complexes and as a precatalyst in various organic synthesis reactions, including C-H and C-C bond activation, hydroiminoacylation, and cycloisomerization.
What is the CAS number and formula for Chlorobis(cyclooctene)rhodium(I), dimer?
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The CAS number is 12279-09-3 and the empirical formula is C32H56Cl2Rh2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Chlorobis(cyclooctene)rhodium(I), dimer with an assay of 98%. TSS does not represent this product as USP, BP, EP, or other pharmacopoeia grades.
How should Chlorobis(cyclooctene)rhodium(I), dimer be handled?
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Handling requires appropriate personal protective equipment including a dust mask (type N95 US), eyeshields, and gloves. Avoid breathing dust and ensure adequate ventilation. Refer to the Safety Data Sheet for full details on safe handling and storage.
Is Chlorobis(cyclooctene)rhodium(I), dimer regulated or scheduled?
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The provided data does not indicate that Chlorobis(cyclooctene)rhodium(I), dimer is a controlled or scheduled substance.
How is Chlorobis(cyclooctene)rhodium(I), dimer packed and shipped?
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This product is carefully packed to ensure integrity during transit and is exported globally by TSS. Specific packaging details are available upon request.
How can I request a quote or sample for Chlorobis(cyclooctene)rhodium(I), dimer?
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To request a quote or sample, please contact our sales team through the TSS website or by phone, providing the product name and CAS number.
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