Russian Chemical Bulletin

, Volume 54, Issue 3, pp 615–622 | Cite as

Stabilization of tautomeric forms P(OH)3 and HP(OH)2 and their derivatives by coordination to palladium and nickel atoms in heterometallic clusters with the Mo3MQ44+ core (M = Ni, Pd; Q = S, Se)

  • M. N. Sokolov
  • E. V. Chubarova
  • K. A. Kovalenko
  • I. V. Mironov
  • A. V. Virovets
  • E. V. Peresypkina
  • V. P. Fedin


The cluster aqua complexes [Mo3(MCl)Q4(H2O)9]3+ (M = Pd or Ni) in hydrochloric acid solutions induce isomerization of the hydrophosphoryl compounds (HO)2P(O)H, (HO)P(O)H2, PhP(O)(OH)H, and Ph2P(O)H into the hydroxo tautomers P(OH)3, HP(OH)2, PhP(OH)2, and Ph2P(OH), which are stabilized by coordination of the phosphorus atom to the Pd or Ni atoms. The reactions were studied by 31P NMR and UV-Vis spectroscopy. The kinetics of the reactions of phosphorous acid with [Mo3(PdCl)Q4(H2O)9]3+ was investigated by spectrophotometry. The [Mo3(Pd(PhP(OH)2))S4(H2O)2Cl7]3− complex was isolated as a supramolecular adduct with cucurbit [8]uril, and the [Mo3(Ni(P(OH)3))S4(H2O)8Cl]3+ complex was isolated as an adduct with cucurbit [6]uril. The structures of both compounds were established by X-ray diffraction analysis.

Key words

molybdenum palladium chalcogenide clusters cucurbituril phosphorus acids 


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Copyright information

© Springer Science+Business Media, Inc. 2005

Authors and Affiliations

  • M. N. Sokolov
    • 1
  • E. V. Chubarova
    • 1
  • K. A. Kovalenko
    • 1
  • I. V. Mironov
    • 1
  • A. V. Virovets
    • 1
  • E. V. Peresypkina
    • 1
  • V. P. Fedin
    • 1
  1. 1.A. V. Nikolaev Institute of Inorganic ChemistrySiberian Branch of the Russian Academy of SciencesNovosibirskRussian Federation

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