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A germaaluminocene.

Lena Albers1, Patrik Tholen1, Marc Schmidtmann1

  • 1Institute of Chemistry, Carl von Ossietzky University Oldenburg Carl von Ossietzky-Straße 9-11 D-26129 Oldenburg Federal Republic of Germany lena.albers@uni-oldenburg.de thomas.mueller@uni-oldenburg.de.

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|June 14, 2021
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Summary
This summary is machine-generated.

Researchers reacted dipotassium germacyclopentadienediide with boron and aluminum compounds. This yielded a germanium(II) borole complex and a novel neutral germaaluminocene, showcasing diverse structural outcomes.

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Area of Science:

  • Organometallic Chemistry
  • Main Group Chemistry
  • Inorganic Synthesis

Background:

  • Germanium-containing compounds are crucial in materials science and catalysis.
  • Exploring novel bonding motifs in germanium chemistry is an active research area.
  • Group 13 elements (boron, aluminum) offer unique electronic properties for coordination chemistry.

Purpose of the Study:

  • To synthesize and characterize novel germanium(II) complexes.
  • To investigate the reactivity of dipotassium germacyclopentadienediide with Group 13 halides.
  • To explore the formation of unusual organometallic structures involving germanium and Group 13 elements.

Main Methods:

  • Reaction of dipotassium germacyclopentadienediide with Cp*BCl2 and Cp*AlCl2.
  • Characterization using multinuclear NMR spectroscopy.
  • Theoretical calculations employing Density Functional Theory (DFT).
  • X-ray diffraction (XRD) for structural determination of the germaaluminocene.

Main Results:

  • Two distinct products were obtained from reactions with boron and aluminum dichlorides.
  • A germanium(II) borole complex was synthesized with Cp*BCl2.
  • An unprecedented neutral germaaluminocene was formed with Cp*AlCl2.
  • NMR spectroscopy and DFT computations confirmed the structures of both compounds.

Conclusions:

  • The reactivity of germacyclopentadienediide is sensitive to the nature of the Group 13 element.
  • Novel germanium(II) borole and neutral germaaluminocene complexes have been successfully synthesized and characterized.
  • These findings expand the scope of organometallic chemistry involving germanium and Group 13 elements.