Sodium tris(carbonato)cobalt(III)

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Sodium tris(carbonato)cobalt(III)
Identifiers
3D model (JSmol)
ChemSpider
  • InChI=1S/3CH2O3.Co.3Na.3H2O/c3*2-1(3)4;;;;;;;/h3*(H2,2,3,4);;;;;3*1H2/q;;;+3;3*+1;;;/p-6
    Key: RAXRATBBPMSPAF-UHFFFAOYSA-H
  • C(=O)([O-])[O-].C(=O)([O-])[O-].C(=O)([O-])[O-].[Na+].[Na+].[Na+].[Co+3].O.O.O
Properties
C3H6CoNa3O12
Molar mass 361.972 g·mol−1
Appearance green solid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Sodium tris(carbonato)cobaltate(III) is the inorganic compound with the formula Na3Co(CO3)3•3H2O. The salt contains an olive-green metastable cobalt(III) coordination complex. The salt, a homoleptic metal carbonato complex, is sometimes referred to as the “Field-Durrant precursor” and is prepared by the “Field-Durrant synthesis”. It is used in the synthesis of other cobalt(III) complexes. Otherwise cobalt(III) complexes are generated from cobalt(II) precursors, a process that requires an oxidant.[1]

An aqueous solution of cobalt(II) nitrate and hydrogen peroxide is added to a solution of sodium bicarbonate, leading to precipitation of the olive solid.[2] The reaction also generates lots of oxygen due to the decomposition of hydrogen peroxide. The method is a modification of the synthesis of what has been described as “Co2(CO3)3”.[3]

Structure and synthetic applications

References

Other literature

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