Rhodium, tetrakis[m-(acetato-kO:kO')]di-, (Rh-Rh)

The Rhodium(II) acetate dimer, with the CAS registry number 15956-28-2 and EINECS registry number 226-843-6, has the systematic name of rhodium(2+) acetate (1:2). It is a kind of emerald green powder, and belongs to the following product categories: Catalysts for Organic Synthesis; Classes of Metal Compounds; Homogeneous Catalysts; Metal Complexes; Rh (Rhodium) Compounds; Synthetic Organic Chemistry; Transition Metal Compounds. And the molecular formula of this chemical is C₈H₁₂O₈Rh₂. What's more, it is usually used as homogeneous catalyst in the cyclopropanation of olefins and enol ethers.

The physical properties of Rhodium(II) acetate dimer are as followings: (1)ACD/LogP: -0.29; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -1.07; (4)ACD/LogD (pH 7.4): -2.86; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 2.73; (8)ACD/KOC (pH 7.4): 1; (9)#H bond acceptors: 2; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 0; (12)Polar Surface Area: 37.3 Ų; (13)Flash Point: 40 °C; (14)Enthalpy of Vaporization: 23.7 kJ/mol; (15)Boiling Point: 117.1 °C at 760 mmHg; (16)Vapour Pressure: 13.9 mmHg at 25°C.

Preparation: Dissolve the Rh(OH)₃^.H₂O with glacial acetic acid, and you can get the deep emerald green solution. Heat the solution, and after reduced pressure distillation, the acetic acid is get off from the solution. And through acetone extraction, the solution become colorless, and then filter with sand core funnel. After a series of evaporating concentration, cooling crystallization and washing, you can get the Rhodium(II) acetate dimer.

You should be cautious while dealing with this chemical. It irritates to eyes and skin. Therefore, you had better take the following instructions: Keep away from heat; Wear suitable gloves and eye/face protection, and in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1)SMILES: [Rh+2].[Rh+2].O=C([O-])C.[O-]C(=O)C.[O-]C(=O)C.[O-]C(=O)C
(2)InChI: InChI=1/4C2H4O2.2Rh/c4*1-2(3)4;;/h4*1H3,(H,3,4);;/q;;;;2*+2/p-4
(3)InChIKey: SYBXSZMNKDOUCA-XBHQNQODAN

The toxicity data is as follows: