Crystallography Reports

, Volume 52, Issue 4, pp 639–646

Structural chemistry of peroxo compounds of group VI transition metals: I. Peroxo complexes of chromium (a review)


  • V. S. Sergienko
    • Kurnakov Institute of General and Inorganic ChemistryRussian Academy of Sciences
Structure of Inorganic Compounds

DOI: 10.1134/S1063774507040116

Cite this article as:
Sergienko, V.S. Crystallogr. Rep. (2007) 52: 639. doi:10.1134/S1063774507040116


The specific features revealed in the structure of the d3 Cr(III), d2 Cr(IV), d1Cr(V), and d0 Cr(VI) peroxo complexes with the ratios M:O2 = 1:1, 1:2, and 1:4 are considered. It is noted that, in eleven compounds of the general formula Cr(O2)nOmAp (n = 1, 2, 4; m = 0, 1; p = 0–4), the metal atoms can be in four oxidations states: +3 (d3), +4 (d4), +5 (d1), and +6 (d0). This property distinguishes chromium peroxo compounds from molybdenum and tungsten dioxygen complexes, which, with one exception, are represented by the d0M(VI) compounds.

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© Pleiades Publishing, Inc. 2007