bis(λ2-rhodium(2+) ion) tetraacetate

• ChemBase ID: 286783
• Molecular Formular: C8H12O8Rh2
• Molecular Mass: 441.98708
• Monoisotopic Mass: 441.86422534
• SMILES: CC(=O)[O-].CC(=O)[O-].CC(=O)[O-].CC(=O)[O-].[Rh+2].[Rh+2]
• Canonical SMILES: [O-]C(=O)C.[O-]C(=O)C.[O-]C(=O)C.[O-]C(=O)C.[Rh+2].[Rh+2]
• InChI: InChI=1S/4C2H4O2.2Rh/c4*1-2(3)4;;/h4*1H3,(H,3,4);;/q;;;;2*+2/p-4
• InChIKey: SYBXSZMNKDOUCA-UHFFFAOYSA-J

NAMES AND DATABASE IDS

Names

• IUPAC name: bis(λ^2-rhodium(2+) ion) tetraacetate
• IUPAC Traditional name: bis(λ^2-rhodium(2+) ion) tetraacetate
• Synonyms: Dirhodium tetraacetate; Rhodium(II) acetate, dimer, Premion®; Tetrakis(aceto)dirhodium(II); Dirhodium tetraacetate; Rhodium(II) acetate, dimer; 乙酸铑(II)二聚物, Premion®; 乙酸铑(II)二聚物

Database IDs

• CAS Number: 15956-28-2
• EC Number: 240-084-8
• MDL Number: MFCD00003538
• PubChem SID: 180672314
• PubChem CID: 152122

CALCULATED PROPERTIES

• Acid pKa: 4.54344
• H Acceptors: 2
• H Donor: 0
• LogD (pH = 5.5): -1.2242727
• LogD (pH = 7.4): -2.9968748
• Log P: -0.22334571
• Molar Refractivity: 23.4808 cm^3
• Polarizability: 4.912116 Å^3
• Polar Surface Area: 40.13 Å^2
• Rotatable Bonds: 0
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Solubility: Slightly soluble in ethanol
• Apperance: Powder
• Melting Point: 205°C

Safety Information

• RTECS: VI9361000
• TSCA Listed: 否

Product Information

• Purity: 98%; 98+%; 99.99% (metals basis), Rh 46.2% min

REFERENCES

• Catalyst for various cyclization reactions involving ɑ-diazo carbonyl groups. Promotes the formation of macrocyclic lactones via intramolecular cyclopropanation and carbon-hydrogen insertion: J. Am. Chem. Soc., 117, 7181 (1995). For a brief feature on uses of the reagent in synthesis, see: Synlett, 3169 (2005).