5 Citations (Scopus)

Abstract

Addition of 2,2′-bipyridine (bpy), 1,10-phenanthroline (phen) or 2-aminopyridine (2-NH2-py) to aqueous solutions of (NH4)[NbO(C2O4)2(H2O)2]·3H2O (Nb-Ox) yields tris-oxalate complexes (bpyH2)(bpyH)[NbO(C2O4)3]·2H2O (1), (phenH)3[NbO(C2O4)3]·3H2O (2), and (2-NH2-pyH)3[NbO(C2O4)3]·2H2O (3), which were characterised by XRD, IR and EA. Bipyridinium salt 1 demonstrates remarkable photoactivity even under irradiation by daylight. The nature of the photoactivity was studied by diffuse reflectance (DR) spectroscopy, ESR and quantum-chemical calculations.

Original languageEnglish
Pages (from-to)2247-2255
Number of pages9
JournalDalton Transactions
Volume47
Issue number7
DOIs
Publication statusPublished - 21 Feb 2018

Keywords

  • EFFECTIVE CORE POTENTIALS
  • CRYSTAL-STRUCTURE
  • MOLECULAR CALCULATIONS
  • NIOBIUM OXIDE
  • PHOTOCHEMISTRY
  • OXALATE
  • CHEMISTRY
  • KINETICS
  • NB2O5
  • 4,4'-BIPYRIDINE

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