Das cubane
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| Names | |
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| Other names
tetrakis[μ-(acetato-κO:κO')]tetra-μ3-oxotetrakis(pyridine)tetracobalt | |
| Identifiers | |
3D model (JSmol) |
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| Properties | |
| C28H32Co4N4O12 | |
| Molar mass | 852.313 g·mol−1 |
| Appearance | olive green solid |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
The Das cubane is a transition metal carboxylate complex with the formula [CoO(OAc)py]4 where OAc is acetate and py is pyridine. The compound is named after Birinchi K. Das, who led the team that discovered the cluster. The compound features a Co4O4 cubane-type cluster core. Each Co(III) center is low-spin and has octahedral geometry. The compound is prepared by mixing a cobalt(II) salt with acetate and pyridine followed by oxidation with hydrogen peroxide.[1] This compound has attracted interest as a possible catalyst for the oxidation of xylene to terephthalic acid.[2]
References
- ↑ Chakrabarty, Rajesh; Bora, Sanchay J.; Das, Birinchi K. (2007). "Synthesis, Structure, Spectral and Electrochemical Properties, and Catalytic Use of Cobalt(III)−Oxo Cubane Clusters". Inorganic Chemistry. 46 (22): 9450–9462. doi:10.1021/ic7011759. PMID 17910439.
- ↑ Beattie, James K.; Hambley, Trevor W.; Klepetko, John A.; Masters, Anthony F.; Turner, Peter (1997). "The Chemistry of Cobalt Acetate—III. The isolation and crystal structure characterisation of the mixed valence octacobalt oligomer, [Co8(O)4(CH3CO2)6(OMe)4]Cl4(OHn)4 · 6H2O (N = 1 or 2), derived from the preparation of cobalt(III) acetate". Polyhedron. 16 (12): 2109–2112. doi:10.1016/S0277-5387(96)00498-6.