Crystal Structure of Cs4[{(C6H6)Ru}2Nb6O19]·8MeOH·2H2O. Structural Overview of Hybrid Organometallic Hexametalates of Niobium and Tantalum: Alkali Metal Coordination Behavior

Pavel A. Abramov, Tatiana P. Zemerova, Maxim N. Sokolov

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Reaction of Cs8[Nb6O19]·14H2O with [(C6H6)RuCl2]2 leads to the formation of trans-[{(C6H6)Ru}2Nb6O19]4− (1). Evaporation of the reaction solution and extraction into methanol (MeOH) yielded Cs4[{(C6H6)Ru}2Nb6O19]·8MeOH·2H2O (1a) as main product together with a small amount of Cs4[{(C6H6)Ru}2Nb6O19]·4MeOH·6H2O (1b), both characterized by X-ray analysis. These structures complete a set of known organometallic polyoxoniobate or polyoxotantalate complexes [{Cp*M′}xM6O19]n− and [{(C6H6)Ru}xM6O19]n− (M = Nb, Ta; M′ = Rh, Ir; x = 1, 2; n = 6, 4; Cp* = η5-C5(CH3)5) and give additional information about the importance of cation–anion interactions in the crystal structures of such complexes.

Original languageEnglish
Pages (from-to)725-734
Number of pages10
JournalJournal of Cluster Science
Volume28
Issue number2
DOIs
Publication statusPublished - 1 Mar 2017

Keywords

  • Alkali metal coordination
  • Caesium
  • Hexaniobate
  • Methanol
  • Ruthenium
  • X-ray structures
  • NB
  • ION
  • TA
  • SALTS
  • POM

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