Abstract
WORK on the crystal structure of diperoxotriaminechromium(IV) [Cr(O2)2(NH3)3] was begun in 1958 but was abandoned when McLaren and Helmholz1 reported their X-ray investigation of the monoclinic form of this compound by means of two-dimensional Fourier methods. They suggested that it might be considered a superoxo compound containing chromium in the oxidation state + 2 with all its electrons paired in order to explain the magnetic susceptibility of the compound. This view has been questioned2 and the present three-dimensional crystal structure analysis was therefore taken up again.
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References
McLaren, E. H., and Helmholz, L., J. Chem. Phys., 63, 1279 (1959).
Cotton, F. A., and Wilkinson, G., Advanced Inorganic Chemistry, 692 (Intersci. Pub., John Wiley and Sons, Inc., 1962).
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STOMBERG, R. Orthorhombic Form of Diperoxotriaminechromium(IV). Nature 201, 486 (1964). https://doi.org/10.1038/201486a0
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DOI: https://doi.org/10.1038/201486a0
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