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Chromium(III) acetate
Chemical compound

Chromium(III) acetate, commonly known as basic chromium acetate, describes a family of salts where the cation has the formula [Cr3O(O2CCH3)6(OH2)3]+. The trichromium cation is encountered with a variety of anions, such as chloride and nitrate. Data in the table above are for the chloride hexahydrate, [Cr3O(O2CCH3)6(OH2)3]Cl(H2O)6.

Salts of basic chromium acetate has long attracted interest because of its distinctive structure, which features octahedral Cr(III) centers, a triply bridging oxo ligand, six acetate ligands, and three aquo ligands. The same structure is shared with basic iron acetate and basic manganese acetate. Little evidence exists for a simple chromium(III) acetate, i.e. lacking the oxo ligand. Chromium(III) acetate is a blue/grey-green powder, which is soluble in water. It is still prepared according to the original procedure from 1909.

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See also

References

  1. Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8. 978-0-08-037941-8 ↩

  2. Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8. 978-0-08-037941-8 ↩

  3. Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8. 978-0-08-037941-8 ↩

  4. Kurt J. Schenk; Hans U. Güdel (1982). "Low-temperature structural and spectroscopic properties of [Cr3O(CH3COO)6(H2O)3]Cl.6H2O". Inorg. Chem. 21 (6): 2253–2256. doi:10.1021/ic00136a025. /wiki/Doi_(identifier) ↩

  5. Erre, Liliana Strinna; Micera, Giovanni; Glowiak, Tadeusz; Kozlowski, Henry (April 1997). "Chromium (III) Acetate, Chromium (III) Acetate Hydroxide, or µ3-Oxo-esakis-(µ2-acetato-O,O') - triaqua-trichromium (III) Acetate? Determining the Structure of a Complex Compound by Analytical and Spectroscopic Methods". Journal of Chemical Education. 74 (4): 432. Bibcode:1997JChEd..74..432E. doi:10.1021/ed074p432. /wiki/Bibcode_(identifier) ↩

  6. Kurt J. Schenk; Hans U. Güdel (1982). "Low-temperature structural and spectroscopic properties of [Cr3O(CH3COO)6(H2O)3]Cl.6H2O". Inorg. Chem. 21 (6): 2253–2256. doi:10.1021/ic00136a025. /wiki/Doi_(identifier) ↩

  7. R. Weinland; P. Dinkelacker (1909). "Über Salze einer Hexaacetato(formiato)‐trichrombase. II". Berichte der Deutschen Chemischen Gesellschaft. 42 (3): 2997–3018. doi:10.1002/cber.19090420318. https://zenodo.org/record/1426357 ↩