Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise focused on industry of fine chemicals research and develop, produce and sale. Shandong Huashang Chemical Co., Ltd. is located in Shan Dong Ji Nan China. we have the ability to provide you high quality products. More than 90 % of our products are exported to developed countries and regions such as north America, Europe, Japan, South Korea and the Middle East.
1. Basic Product Profile
- Full IUPAC Name: bis(cycloocta-1,5-diene)rhodium(1+) tetrafluoroborate
- Aliases: [Rh(COD)2]BF4, Di(1,5-cyclooctadiene)rhodium tetrafluoroborate
- CAS Number: 35138-22-8
- EINECS: N/A
- Molecular Formula: C16H24BF4Rh
- Molecular Weight: 437.07
- Chemical Classification: Homogeneous rhodium metal catalyst, hydrogenation asymmetric synthesis catalyst precursor
- Core Advantages
Air-stable cationic Rh(I) complex with two 1,5-cyclooctadiene ligands. Easily undergoes ligand exchange with phosphine, nitrogen, olefin ligands to form various chiral rhodium catalytic systems. Widely used for asymmetric hydrogenation, hydroformylation, olefin isomerization and industrial fine chiral drug intermediate synthesis, high catalytic activity and mild reaction conditions.
2. Physical & Chemical Properties
2.1 Physical Index
- Appearance: Orange to bright orange crystalline powder
- Odor: Odorless
- Solubility: Soluble in DCM, chloroform, acetone, methanol, ethanol; slightly soluble in toluene; insoluble in aliphatic alkanes, water
- Melting Point: Decomposes above 180 °C without clear melting point
- Hygroscopy: Slightly hygroscopic under high humidity air
- Crystal Feature: Fine crystalline solid, easy to dissolve in anhydrous polar organic solvents
2.2 Chemical Properties
- Rh(I) d8 metal center: Labile COD ligands, readily displaced by phosphine, diamine, alkene substrates to generate active catalytic species
- Catalytic activity core: Efficiently catalyzes asymmetric hydrogenation of enamides, ketones, unsaturated carboxylic acids for chiral building blocks
- Acid & Alkali Stability: Stable under neutral anhydrous conditions; decomposes rapidly in strong alkaline aqueous solution
- Thermal Stability: Gradual ligand dissociation and metal aggregation above 160 °C
- Photostability: Sensitive to strong UV light; long-term illumination causes metal precipitation and activity loss
- Compatibility: Compatible with anhydrous aprotic solvents and phosphine ligands; incompatible with water, strong reducing agents, concentrated alkali
3. Main Application Fields
3.1 Asymmetric Hydrogenation Catalyst Precursor (Core Usage)
Core rhodium source for chiral catalytic systems to synthesize chiral pharmaceutical intermediates, amino acid derivatives and chiral alcohol raw materials.
3.2 Organic Synthetic Laboratory Catalyst
Universal transition metal catalyst for olefin hydroformylation, cyclization and C-H activation research in chemical labs.
3.3 Fine Chemical Pilot Production Catalyst
Used in continuous hydrogenation processes for food additives, pesticide chiral intermediates and fragrance compounds.
3.4 Organometallic Research Reagent
Standard Rh(I) starting material for developing new metal complex catalysts and organometallic functional materials.
4. Quality Specification Table
| Test Item | Standard Index |
| CAS No. | 35138-22-8 |
| Molecular Formula | C16H24BF4Rh |
| Molecular Weight | 437.07 |
| Appearance | Orange crystalline powder |
| Rhodium Metal Content | 23.0%–24.0% |
| HPLC Purity | Catalyst Grade ≥98.0%; Research Grade ≥99.0% |
| Free COD Residue | ≤0.20% |
| Moisture Content (KF) | ≤0.10% |
| Heavy Metals (Pb) | ≤10 ppm |
| Residue on Ignition | ≤0.50% |
| Bulk Package | 25kg nitrogen-sealed aluminum foil lined fiber drum |
| Sample Package | 1g / 10g / 100g argon-filled sealed aluminum foil bag |
| Storage Requirements | Hermetic inert gas sealed cool dry warehouse ≤25℃; isolate humid air, intense light and alkaline substances |
| Transportation Rule | Noble metal organometallic catalyst; light-proof moisture-proof sealed packaging mandatory during transit |
| Shelf Life | 24 months under intact argon-sealed packaging |
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