Bis(1,5-cyclooctadiene)rhodium(I) tetrafluoroborate
Bis(1,5-cyclooctadiene)rhodium(I) tetrafluoroborate (CAS 35138-22-8) is a cationic rhodium(I) organometallic complex with the formula C16H24BF4Rh and a molecular weight of 406.07. Supplied as an air-sensitive solid, it serves as a versatile homogeneous pre-catalyst: the labile cyclooctadiene ligands are readily displaced by phosphines and other donors to generate active rhodium species for hydrogenation, hydroformylation and a range of carbon-carbon bond-forming reactions.
- IUPAC
- Rhodium(I) tetrafluoroborate 1,5-Cyclooctadiene complex
- Synonyms
- Bis(1,5-cyclooctadiene)rhodium(I) tetrafluoroborateRhodium(I) tetrafluoroborate 1,5-cyclooctadiene complexBis(1,5-cyclooctadiene)rhodium tetrafluoroborate[Rh(COD)2]BF4Bis(cycloocta-1,5-diene)rhodium(I) tetrafluoroborateRhodium bis(1,5-cyclooctadiene) tetrafluoroborate
Homogeneous catalysis pre-catalyst
The complex is a convenient cationic rhodium(I) source for homogeneous catalysis. Its weakly coordinating tetrafluoroborate counter-ion and labile diene ligands allow facile in-situ generation of active catalytic species.
Catalytic hydrogenation
It is widely used as a precursor for rhodium-catalysed hydrogenation of alkenes and other unsaturated substrates. Combined with chiral phosphine ligands, it underpins enantioselective (asymmetric) hydrogenation methodologies.
Phosphine-modified catalysis
The displaceable 1,5-cyclooctadiene ligands are readily exchanged for mono- and bidentate phosphines, giving defined Rh(I) phosphine catalysts for fine-chemical and pharmaceutical-intermediate synthesis.
Carbon-carbon bond formation
As a rhodium(I) source, it is applied in catalytic carbon-carbon bond-forming transformations, including hydroformylation and conjugate-addition or cyclisation reactions reported for cationic rhodium systems.
Research and method development
It is used in academic and industrial research as a well-defined organometallic reagent for developing and screening new rhodium-catalysed reactions and ligand systems.
| Molecular weight | 406.07 |
|---|---|
| Empirical formula | C16H24BF4Rh |
| Melting point | ~190 °C (dec.) |
Hazard statements
- H228Flammable solid
- H314Causes severe skin burns and eye damage
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges |
|---|---|
| Transport (UN / ADR) | UN 2921 8/PG 2 |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | F |
| Risk statements (R) | 11-34 |
| Safety statements (S) | 26-36/37/39-45 |
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 Bis(1,5-cyclooctadiene)rhodium(I) tetrafluoroborate used for?
+
It is used as a cationic rhodium(I) pre-catalyst in homogeneous catalysis. Principal applications include catalytic hydrogenation (including asymmetric hydrogenation with chiral phosphines), hydroformylation and carbon-carbon bond-forming reactions, where its labile cyclooctadiene ligands are exchanged to form the active catalyst.
What is the CAS number and molecular formula of Bis(1,5-cyclooctadiene)rhodium(I) tetrafluoroborate?
+
The CAS number is 35138-22-8 and the empirical formula is C16H24BF4Rh (Hill notation), with a molecular weight of 406.07. The MDL number is MFCD00075045. It is also known as the Rhodium(I) tetrafluoroborate 1,5-cyclooctadiene complex.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies this product as a research and catalysis-grade organometallic reagent. We do not represent it as a USP, BP or EP pharmacopoeia grade. Specific assay, lot purity and a Certificate of Analysis can be confirmed against your requirement at the time of enquiry.
What are the safety and handling hazards of this compound?
+
It is classified Danger (GHS02, GHS05) and is a flammable solid that causes severe skin burns and eye damage (H228, H314). The material is also air- and moisture-sensitive. Handle under inert atmosphere with eye and face protection, suitable gloves and an N100/P3-type respirator, away from ignition sources, and always consult the SDS before use.
How is Bis(1,5-cyclooctadiene)rhodium(I) tetrafluoroborate packed, shipped and exported?
+
It is packed in tightly sealed, inert containers appropriate to the order quantity, with packaging suited to its air sensitivity. For transport it is classified as UN 2921, Class 8 (corrosive), Packing Group II, and is shipped as dangerous goods in compliance with applicable ADR/IMDG/IATA regulations to international destinations.
How do I request a sample or quote?
+
Contact Tech Serve Solutions with the quantity, required packaging and your destination, and we will confirm availability, specification, lead time and export documentation. Samples and bulk quantities can be quoted on request.
▶ Related products
Benzeneruthenium(II) chloride dimer
Ru2(C6H6)2Cl4
Catalysis & Inorganic
Benzoylferrocene
C17H14FeO
Catalysis & Inorganic
Benzyldiphenylphosphine
C6H5CH2P(C6H5)2
Catalysis & Inorganic
Beryllium
Be
Catalysis & Inorganic
Beryllium oxide
BeO
Catalysis & Inorganic![Bicyclo[2.2.1]hepta-2,5-diene-rhodium(I) chloride dimer — chemical structure, CAS 12257-42-0; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F12257-42-0.png&w=3840&q=75)
Bicyclo[2.2.1]hepta-2,5-diene-rhodium(I) chloride dimer
Catalysis & Inorganic
![Bis[(10,11-η)-5-[(11bS)-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl- κP4]-5H-dibenz[b,f]azepine]rhodium(I) tetrafluorobo — chemical structure, CAS 1228149-03-8; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F1228149-03-8.png&w=3840&q=75)
Bis[(10,11-η)-5-[(11bS)-dinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepin-4-yl- κP4]-5H-dibenz[b,f]azepine]rhodium(I) tetrafluorobo
1-d:1′
Catalysis & Inorganic![Bis[(2-dimethylamino)phenyl]amine nickel(II) chloride (C16H20ClN3Ni) — chemical structure, CAS 1033772-47-2; Catalysis & Inorganic, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F1033772-47-2.png&w=3840&q=75)
Bis[(2-dimethylamino)phenyl]amine nickel(II) chloride
C16H20ClN3Ni
Catalysis & Inorganic▶ Explore more
3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis
3-Methyl-1,5-pentanediol
Chemical Synthesis
3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis