Charged Si9 Clusters in Neat Solids and the Detection of [H2 Si9 ]2- in Solution: A Combined NMR, Raman, Mass Spectrometric, and Quantum Chemical Investigation

Angewandte Chemie
Lorenz J SchiegerlThomas F Fässler

Abstract

Polyanionic silicon clusters are provided by the Zintl phases K4 Si4 , comprising [Si4 ]4- units, and K12 Si17 , consisting of [Si4 ]4- and [Si9 ]4- clusters. A combination of solid-state MAS-NMR, solution NMR, and Raman spectroscopy, electrospray ionization mass spectrometry, and quantum-chemical investigations was used to investigate four- and nine-atomic silicon Zintl clusters in neat solids and solution. The results were compared to 29 Si isotope-enriched samples. 29 Si-MAS NMR and Raman shifts of the phase-pure solids K4 Si4 and K12 Si17 were interpreted by quantum-chemical calculations. Extraction of [Si9 ]4- clusters from K12 Si17 with liquid ammonia/222crypt and their transfer to pyridine yields in a red solid containing Si9 clusters. This compound was characterized by elemental and EDX analyses and 29 Si-MAS NMR and Raman spectroscopy. Charged Si9 clusters were detected by 29 Si NMR in solution. 29 Si and 1 H NMR spectra reveal the presence of the [H2 Si9 ]2- cluster anion in solution.

References

Jun 4, 2004·Journal of the American Chemical Society·Jose M Goicoechea, Slavi C Sevov
Apr 14, 2005·Angewandte Chemie·David Scheschkewitz
Nov 16, 2005·Angewandte Chemie·Gerd FischerNils Wiberg
Mar 21, 2007·Journal of the American Chemical Society·Eva ZurekJochen Autschbach
Apr 18, 2008·Chemistry : a European Journal·Sandra ScharfeKlaus Ruhland
Jan 30, 2010·Science·Kai AbersfelderDavid Scheschkewitz
Aug 3, 2010·Angewandte Chemie·Markus WaibelThomas F Fässler
Nov 13, 2010·Journal of the American Chemical Society·Jonathan JeckDavid Scheschkewitz
Apr 2, 2011·Angewandte Chemie·Sandra ScharfeThomas F Fässler
Jul 6, 2011·Angewandte Chemie·Kai AbersfelderDavid Scheschkewitz
Jun 18, 2008·Nanotechnology·Eun-Chel ChoMartin A Green
May 1, 2012·Journal of the American Chemical Society·F Sanem KocakBryan Eichhorn
Aug 28, 2012·Journal of the American Chemical Society·Kai AbersfelderDavid Scheschkewitz
Oct 23, 2013·Journal of the American Chemical Society·Akihiro TsurusakiSoichiro Kyushin
Aug 30, 2014·Journal of the American Chemical Society·Akihiro TsurusakiSoichiro Kyushin
Mar 6, 2015·Angewandte Chemie·Jan TillmannMatthias Wagner
Jan 23, 2016·Angewandte Chemie·Philipp WillmesDavid Scheschkewitz
Jan 30, 2016·Angewandte Chemie·Kartik Chandra MondalHerbert W Roesky
Nov 22, 2017·Chemical Communications : Chem Comm·Felix S Geitner, Thomas F Fässler
Sep 18, 1998·Angewandte Chemie·Hans Georg von SchneringYuri Grin

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Citations

Oct 18, 2018·Chemical Communications : Chem Comm·Thomas HennebergerThomas F Fässler
Jan 12, 2019·Angewandte Chemie·Kinga I LeszczyńskaDavid Scheschkewitz
Jun 25, 2019·Chemistry : a European Journal·Christoph WallachThomas F Fässler
Jun 24, 2021·Chemical Reviews·Yannic Heider, David Scheschkewitz
Jul 14, 2021·Journal of the American Chemical Society·Marcel BambergMatthias Wagner
Nov 16, 2019·Journal of the American Chemical Society·Yannic HeiderDavid Scheschkewitz
Oct 6, 2020·Inorganic Chemistry·Felix S Geitner, Thomas F Fässler

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