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Rhenium trioxynitrate

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Rhenium trioxynitrate
Names
Other names
  • Rhenium trioxide nitrate
  • Rhenium(VII) trioxinitrate
Identifiers
3D model (JSmol)
  • InChI=1S/NO3.3O.Re/c2-1(3)4;;;;/q-1;;;;+1
    Key: BWCUOIVXPQXNND-UHFFFAOYSA-N
  • O=[Re+](=O)=O.[N+](=O)([O-])[O-]
Properties
ReO3NO3
Molar mass 296.21 g/mol
Appearance Pale yellow solid[1]
Melting point 75 °C (167 °F; 348 K)[1] (decomposes)
Reacts
Solubility Insoluble in carbon tetrachloride and DCM, soluble in N2O5[1][2]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Rhenium trioxynitrate, also known as rhenium(VII) trioxide nitrate, is a chemical compound with the formula ReO3NO3. It is a white solid that readily hydrolyzes in moist air.[1]

Preparation and properties

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Rhenium trioxynitrate is prepared by the reaction of ReO3Cl (produced by reacting rhenium trioxide and chlorine) and dinitrogen pentoxide:[1]

ReO3Cl + N2O5 → ReO3NO3 + NO2Cl

The ReO3Cl can be replaced with rhenium heptoxide, however, this produces an impure product. This compound reacts with water to produce perrhenic acid and nitric acid.[1]

When heated above 75 °C, it decomposes to rhenium heptoxide, nitrogen dioxide, and oxygen:[1]

4 ReO3NO3 → 2 Re2O7 + 2 NO2 + O2

A graphite intercalation compound can be produced by reacting a mixture of rhenium trioxynitrate and dinitrogen pentoxide with graphite.[2]

Structure

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X-ray diffraction and IR spectroscopic evidence rejects the formulations NO2+ReO4 or Re2O7·N2O5, but instead suggests a polymeric structure with a monodentate nitrate ligand.[1][3]

References

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  1. ^ a b c d e f g h C. C. Addison; R. Davis; N. Logan (1967). "Rhenium trioxide nitrate". Journal of the Chemical Society A: Inorganic, Physical, Theoretical: 1449–1451. doi:10.1039/J19670001449.
  2. ^ a b P. Scharff; E. Stumpp; M. Höhne; Y. X. Wang (1991). "Upon the intercalation of rhenium heptoxide and rhenium trioxide nitrate into graphite". Carbon. 29 (4–5): 595–597. doi:10.1016/0008-6223(91)90125-3.
  3. ^ Romão, Carlos C.; Kühn, Fritz E.; Herrmann, Wolfgang A. (1997). "Rhenium(VII) Oxo and Imido Complexes: Synthesis, Structures, and Applications". Chemical Reviews. 97 (8): 3197–3246. doi:10.1021/cr9703212. PMID 11851489.