Rhodium(II) acetate dimer
- CAS No.
- 15956-28-2
- Chemical Name:
- Rhodium(II) acetate dimer
- Synonyms
- Rh2(OAc)4;RHODIUM ACETATE DIMER;DIRHODIUM(II) TETRAACETATE;dirhodiumtetraacetate;tetrakis(acetato)dirhodium;tetraac;Rh2(CH3CO2)4;Dimer acid rhodium;RHODIUM(11) ACETATE;rhodiumdiacetatedimer
- CBNumber:
- CB2332600
- Molecular Formula:
- C8H12O8Rh2
- Molecular Weight:
- 441.99
- MDL Number:
- MFCD00003538
- MOL File:
- 15956-28-2.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| Rhodium(II) acetate dimer powder | 209058 | 1g | $977 |
| Rhodium(II) acetate dimer powder | 209058 | 2g | $1730 |
| Rhodium(II) Acetate Dimer | R0069 | 1g | $857 |
| Rhodium(II) Acetate Dimer | R0069 | 100mg | $141 |
| Rhodium(II) acetate dimer, 99% 99% | 45-1730 | 100mg | $197 |
| More product size | |||
| Melting point | 205 °C |
|---|---|
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | Methanol + Water (Slightly) |
| form | powder |
| color | Green to dark green |
| Water Solubility | Soluble in aqueous solution like water. Slightly soluble in ethanol |
| Hydrolytic Sensitivity | 0: forms stable aqueous solutions |
| Exposure limits |
ACGIH: TWA 0.01 mg/m3 NIOSH: IDLH 2 mg/m3; TWA 0.001 mg/m3 |
| Stability | Hygroscopic |
| InChI | InChI=1S/4C2H4O2.2Rh/c4*1-2(3)4;;/h4*1H3,(H,3,4);;/q;;;;2*+2/p-4 |
| InChIKey | ANSVJOOIUURYRN-UHFFFAOYSA-N |
| SMILES | CC1=O[Rh+2]234O=C(C)[O-][Rh+2]2(O=C(C)[O-]3)(O=C(C)[O-]4)[O-]1 |
| FDA UNII | NK3058Z56X |
| UNSPSC Code | 12352103 |
| NACRES | NA.23 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319 | |||||||||
| Precautionary statements | P302+P352-P305+P351+P338 | |||||||||
| PPE | Eyeshields, Gloves, type N95 (US) | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/38 | |||||||||
| Safety Statements | 37/39-26-15 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | VI9361000 | |||||||||
| TSCA | No | |||||||||
| HS Code | 28439000 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Eye Irrit. 2 Skin Irrit. 2 |
|||||||||
| NFPA 704 |
|
Rhodium(II) acetate dimer price More Price(84)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 209058 | Rhodium(II) acetate dimer powder | 15956-28-2 | 1g | $977 | 2026-04-30 | Buy |
| Sigma-Aldrich | 209058 | Rhodium(II) acetate dimer powder | 15956-28-2 | 2g | $1730 | 2026-04-30 | Buy |
| TCI Chemical | R0069 | Rhodium(II) Acetate Dimer | 15956-28-2 | 1g | $857 | 2026-04-30 | Buy |
| TCI Chemical | R0069 | Rhodium(II) Acetate Dimer | 15956-28-2 | 100mg | $141 | 2026-04-30 | Buy |
| Strem Chemicals | 45-1730 | Rhodium(II) acetate dimer, 99% 99% | 15956-28-2 | 100mg | $197 | 2026-04-30 | Buy |
Rhodium(II) acetate dimer Chemical Properties,Uses,Production
Chemical Properties
Rhodium(II) acetate dimer is Emerald Green Powder. Soluble in methanol. It is soluble in water, while the relative solubility of copper acetate in water is small.
Uses
Rhodium (II) Acetate Dimer is a effective catalyst for ylide formation and it is also catalyst for cyclopropanation of alkenes, oxidation of alcohols, cyclization reactions involving -diazo carbonyl groups, insertion into C-H and X-H bonds (X-H is NH or SH or OH). More reactive and useful in differentiating ribonucleosides and deoxynucleosides. It is also used in functionalizing fullerenes into polymers. Efficient catalyst for hydrogen transfer from 2-propanol to cyclohexanone and other unsaturated compounds.
Application
Rhodium (II) Acetate Dimer is used in the preparation of molybdenum triisopropylbenzoate isonicotinate which maintains ambivalent properties.
Preparation
Rhodium(II) acetate dimer synthesis: A suspension of 10.0g. of Rh(OH)3.H20 in 400 ml. of glacial acetic acid dissolved upon refluxing for 18 hr. to give a deep emerald-green solution. Most of the acetic acid was evaporated on a steam bath; remaining traces mere removed by heating the residue at 120° for 1hr. The residue was then extracted with boiling acetone until the extract was colorless rather than bluish green. The extract was quickly passed through a fritted glass filter, concentrated on a steam bath to 1/3 its original volume, and placed in the freezing compartment of a refrigerator for 18hr. The resulting large dark green crystals were collected on a filter, washed with small portions of ice-cold acetone, and dried at 110°. When first collected, the product is the weak adduct [Rh(OOCCH3)2(CH3)2C0]2; however, acetone is lost fairly readily at room temperature and immediately in the drying oven; yield, 6.2g. (48%).
Reactions
Catalyst for insertion into C-H and X-H bonds.
Catalyst for Ylide generation.
Doyle Kirmse Reaction of Allylic Sulfides with Diazoalkane.
Claisen rearrangement.
Epoxides from aldehydes.
Synthesis of aziridines from allylic N-tosyloxycarbamates.
Rh/NHC catalyzed direct intermolecular arylation of C-H bonds.
Chiral Bronsted acid-Rh catalyzed three component reactions of diazo compounds with alcohols and imines.
Rh-catalyzed cyclopropenations of ynamides.
Tandem asymmetric aza-Darzens/ring-opening reactions.
reaction suitability
reaction type: C-H Activation
reagent type: catalyst
Purification Methods
Dissolve 5g of the salt in boiling MeOH (ca 600mL) and filter. Concentrate it to 400mL and chill overnight at ca 0o to give dark green crystals of the MeOH adduct. Concentration of the mother liquors gives a further crop of [Rh(OAc)2]2.2MeOH. The adduct is then heated at 45o in a vacuum for 2hours (all MeOH is lost) to leave the emerald green crystals of the actetate. [Legzdins et al. J Chem Soc (A) 3322 1970.] Alternatively dissolve the acetate in glacial AcOH and reflux for a few hours to give an emerald green solution. Evaporate most of the AcOH on a steam bath, then heat the residue at 120o/1hour. Extract the residue with boiling Me2CO. Filter, concentrate to half its volume and keep at 0o/18hours. Collect the crystals, wash them with ice cold Me2CO and dry them at 110o. It is soluble in most organic solvents with which it forms adducts including Me3N and Me2S and gives solutions with different colours varying from green to orange and red. [UV: Johnson et al. Inorg Chem 2 960 1963, Beilstein 1 H 124.]
Rhodium(II) acetate dimer Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Capot Chemical Co.,Ltd. | +86-（0）57185586718 +86-13336195806 | sales@capot.com | China | 29626 | 60 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-2158073036 | info@dakenam.com | China | 14035 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21533 | 55 |
| career henan chemical co | +86-0371-86658258 | sales@coreychem.com | China | 29766 | 58 |
| Shanghai Worldyang Chemical Co.,Ltd. | +86-021-56795779 +86-13651600618 | sales@worldyachem.com | China | 963 | 58 |
| BOC Sciences | +1-631-485-4226 | inquiry@bocsci.com | United States | 19935 | 58 |
| CONIER CHEM AND PHARMA LIMITED | sales@conier.com | China | 49906 | 58 | |
| career henan chemical co | +86-0371-86658258 | factory@coreychem.com | China | 29780 | 58 |
| Neostar United (Changzhou) Industrial Co., Ltd. | +86-0519-85551759 | marketing1@neostarunited.com | China | 8827 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +86-189 4982 3763 | sales@tnjchem.com | China | 34526 | 58 |
Related articles
- Synthetic method and Catalytic Applications of Rhodium(II) acetate dimer
- Rhodium(II) acetate dimer is used as an organic catalyst in the chemical industry, particularly for catalyzing the cyclopropan....
- Jun 26,2026
View Lastest Price from Rhodium(II) acetate dimer manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-03-20 | Rhodium(II) acetate dimer
15956-28-2
|
$10.00 | 1KG | 99% | 10 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
 |
2022-09-21 | Rhodium(II) acetate dimer
15956-28-2
|
1kg | 99% | 1000kg | henan kanbei chemical co.,ltd | ||
 |
2020-11-19 | Rhodium(II) acetate dimer
15956-28-2
|
$20.00 | 1KG | 99% | 10000KG | Longyan Tianhua Biological Technology Co., Ltd |
-
- Rhodium(II) acetate dimer
15956-28-2
- $10.00
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- Rhodium(II) acetate dimer
15956-28-2
- $0.00
- 99%
- henan kanbei chemical co.,ltd
-
- Rhodium(II) acetate dimer
15956-28-2
- $20.00
- 99%
- Longyan Tianhua Biological Technology Co., Ltd
