Structure and Fluxionality of B13+Probed by Infrared Photodissociation Spectroscopy

Matias R. Fagiani, Xiaowei Song, Petko Petkov, Sreekanta Debnath, Sandy Gewinner, Wieland Schöllkopf, Thomas Heine, André Fielicke, Knut R. Asmis

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Abstract

We use cryogenic ion vibrational spectroscopy to characterize the structure and fluxionality of the magic number boron cluster B13+. The infrared photodissociation (IRPD) spectrum of the D2-tagged all-11B isotopologue of B13+is reported in the spectral range from 435 to 1790 cm−1and unambiguously assigned to a planar boron double wheel structure based on a comparison to simulated IR spectra of low energy isomers from density-functional-theory (DFT) computations. Born–Oppenheimer DFT molecular dynamics simulations show that B13+exhibits internal quasi-rotation already at 100 K. Vibrational spectra derived from these simulations allow extracting the first spectroscopic evidence from the IRPD spectrum for the exceptional fluxionality of B13+.

Original languageEnglish
Pages (from-to)501-504
Number of pages4
JournalAngewandte Chemie - International Edition
Volume56
Issue number2
DOIs
Publication statusPublished - 2017 Jan 1

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All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

Cite this

Fagiani, M. R., Song, X., Petkov, P., Debnath, S., Gewinner, S., Schöllkopf, W., Heine, T., Fielicke, A., & Asmis, K. R. (2017). Structure and Fluxionality of B13+Probed by Infrared Photodissociation Spectroscopy. Angewandte Chemie - International Edition, 56(2), 501-504. https://doi.org/10.1002/anie.201609766