A Novel Niobium Cluster Aqua Ion with Capping μ4-Se Ligand

Artem L. Gushchin, Bee Lean Ooi, Pernille Harris, Pavel A. Abramov, Maxim N. Sokolov

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The aqueous solution chemistry of niobium is underexplored, and well characterized aqua complexes are scarce. In this contribution, a new niobium aqua complex was obtained by treatment of Zn-reduced ethanolic solution of NbCl5 with HCl in the presence of a selenide source (ZnSe). This is the first example of selenium containing aqua complex of niobium. The yellow-green aqua complex was isolated by cation-exchange chromatography and transformed into corresponding isothiocyanate complex by ligand exchange, which was crystallized as (PyH)4.5[H1.5Nb4SeO5(NCS)10]·0.5H2O. X-ray structural analysis revealed a metal-metal bonded tetranuclear {Nb44-Se)(μ2-O)5}4+ core with a capping μ4-Se ligand.

Original languageEnglish
Pages (from-to)398-401
Number of pages4
JournalZeitschrift fur Anorganische und Allgemeine Chemie
Volume645
Issue number4
DOIs
Publication statusPublished - 28 Feb 2019

Keywords

  • Crystal structure
  • High-valent cluster
  • Niobium
  • Niobium aqua ion
  • Selenide bridging ligand
  • MO
  • MOLYBDENUM
  • COMPLEXES
  • ISOMERISM
  • DINUCLEAR
  • CRYSTAL
  • CHALCOGENIDE CLUSTERS
  • SE
  • CHEMISTRY
  • TRINUCLEAR

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