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Fabrication and Optimization of Type II Silicon Clathrate Films
06:53

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Published on: October 14, 2025

A stable silicon(II) monohydride.

Anukul Jana1, Dirk Leusser, Ina Objartel

  • 1Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, 37077, Göttingen, Germany.

Dalton Transactions (Cambridge, England : 2003)
|April 7, 2011
PubMed
Summary
This summary is machine-generated.

Researchers created a stable silicon(II) monohydride by bonding a silylene to a boron compound. This novel hydride features a positively charged silicon atom and is stabilized by a benzamidinate ligand.

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Area of Science:

  • Inorganic Chemistry
  • Organosilicon Chemistry
  • Computational Chemistry

Background:

  • Silicon(II) compounds are often unstable and reactive.
  • Understanding bonding in low-valent silicon hydrides is crucial for synthetic chemistry.
  • Borane adducts offer a route to stabilizing reactive species.

Purpose of the Study:

  • To synthesize and characterize a stable silicon(II) monohydride.
  • To investigate the electronic structure and bonding in the novel silicon hydride.
  • To explore the role of Lewis acid-base interactions in stabilizing low-valent silicon.

Main Methods:

  • Synthesis of a novel silicon(II) monohydride complex.
  • Experimental charge density investigations.
  • Spectroscopic and crystallographic analyses.

Main Results:

  • A stable silicon(II) monohydride, H-Si-BH(3), was successfully synthesized.
  • Charge density studies revealed a positively charged silicon atom and a negatively charged hydrogen atom.
  • The H-Si-BH(3) moiety is stabilized by coordination to a benzamidinate ligand through lone-pair interactions.
  • A transannular Si1···C1 exchange channel was identified, further reinforcing stability.

Conclusions:

  • The study demonstrates a new method for stabilizing silicon(II) hydrides.
  • Covalent interactions and ligand coordination are key to the stability of this novel compound.
  • The findings provide insights into the electronic properties and bonding of low-valent silicon species.