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  Orthoperiodato Rhodium(III) Complex as a Possible Key to Catalytic Oxidation of Organic Dyes

He, H., Albrecht, R., & Ruck, M. (2022). Orthoperiodato Rhodium(III) Complex as a Possible Key to Catalytic Oxidation of Organic Dyes. Zeitschrift für anorganische und allgemeine Chemie, e202200041, pp. 1-6. doi:10.1002/zaac.202200041.

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 Creators:
He, Huanyu1, Author
Albrecht, Ralf1, Author
Ruck, Michael2, Author              
Affiliations:
1External Organizations, ou_persistent22              
2Michael Ruck, Max Planck Fellow, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863444              

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 Abstract: Light yellow, air-sensitive single-crystals of the rhodium(III) orthoperiodato K8[Rh(IO6)2]OH ⋅ 3H2O were synthesized starting from Rh2O3 and KIO4. The reaction was carried out in a potassium hydroxide hydroflux with a molar water-base ratio of 1.8 at 200 °C. Single-crystal X-ray diffraction revealed a triclinic crystal structure (space group (Formula presented.)). The most striking feature of the structure is the [Rh(IO6)2]7− anion, a linear sequence of three face-sharing octahedra. It can be interpreted as a rhodium(III) cation coordinated by two orthoperiodato groups. A water molecule and a hydroxide ion form an associate (H3O2)−. Together with other water molecules, they connect the [Rh(IO6)2]7− anions via hydrogen bridges to form layers. Upon heating, the compound first loses its crystal water, then the iodine is gradually reduced before evaporating during the final decomposition step, which results in K0.63RhO2. In K8[Rh(IO6)2]OH ⋅ 3H2O, the unusually short RhIII−IVII distance of only 276.38(1) pm should allow direct charge transfer in the [Rh(IO6)2]7− anion. An electron-poor rhodium cation, accessible from the side, could be the active center in the rhodium-catalyzed oxidation of unsaturated organic molecules by periodate. © 2022 The Authors.

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Language(s): eng - English
 Dates: 2022-02-222022-02-22
 Publication Status: Published in print
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 Identifiers: DOI: 10.1002/zaac.202200041
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Title: Zeitschrift für anorganische und allgemeine Chemie
  Other : J. Inorg. Gen Chem.
  Other : Journal of Inorganic and General Chemistry
  Abbreviation : Z. Anorg. Allg. Chem.
Source Genre: Journal
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Publ. Info: Leipzig, Weinheim : Verlag Johann Ambrosius Barth / Wiley-VCH
Pages: - Volume / Issue: - Sequence Number: e202200041 Start / End Page: 1 - 6 Identifier: Other: 1521-3749
ISSN: 0044-2313
CoNE: https://pure.mpg.de/cone/journals/resource/954925453895