Characterization of Metal—Carbon Nanocrystals in the Gas Phase: FT-ICR Studies of V14C12+ and V14C13+

Y. G. Byun, C. S. Yeh, Y. C. Xu, Ben S. Freiser

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Abstract

A compact supersonic source is used in conjunction with a Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometer to generate and study the gas-phase reactivities of V14C12+ and V14C13+. Sequential reactions with up to 8 H2O molecules result in the formation of V14C12,13(OH)2(H2O)6+ and V14C13(OH)4(H2O)4+ by loss of H2 or attachment of H2O. Both ions are observed to attach up to 8 CH3CN molecules. In light of an earlier study which indicated that Nb4C4+ has a slightly distorted 2 × 2 × 2 cubic structure, these results provide evidence for the proposed 3 × 3 × 3 cubic structure of V14C13+ where the 8 metals in the corners are the active binding sites. The similarity of the reactivity of V14C12+ suggests an analogous structure.

Original languageEnglish
Pages (from-to)8299-8303
Number of pages5
JournalJournal of the American Chemical Society
Volume117
Issue number32
DOIs
Publication statusPublished - 1995 Jan 1

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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