Crystal Structure and Properties of [Rh2(H2O)8(μ-OH)2](NO3)4·4H2O

S. N. Berdyugin, D. B. Vasilchenko, I. A. Baidina, S. V. Korenev, I. V. Korolkov

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


A procedure to synthesize (μ-hydroxo)bis-pentaaquarhodium(III) nitrate tetrahydrate [Rh2(H2O)8(μ-OH)2](NO3)4·4H2O from potassium hexachlororhodiate(III) is elaborated. The compound is isolated into the solid phase and structurally characterized. The crystallographic data are as follows: a = 5.8763(2) Å, b = 9.4749(4) Å, c = 9.6249(3) Å, α = 79.905(1)°, β = 84.324(1)°, γ = 82.922(1)°, space group P-1, Z = 1, ρcalc = 2.240 g/cm3. The compound is soluble in water, ethanol, and acetone. Hydrolysis takes place in concentrated nitric acid with the formation of mononuclear aqua- and aquanitrate complexes. Thermal decomposition of the salt at a temperature above 580 °C leads to the formation of a single product–rhodium(III) oxide.

Original languageEnglish
Pages (from-to)664-668
Number of pages5
JournalJournal of Structural Chemistry
Issue number3
Publication statusPublished - 1 May 2018


  • bridging OH ligand
  • polycondensation of hydroxo complexes
  • polynuclear complexes
  • rhodium complexes
  • rhodium(III) nitrate
  • single crystal X-ray diffraction analysis
  • synthesis
  • IONS


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