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Tris(3,5-dimethylpyrazol-1-yl)methylsilane

S Vepachedu1, R T Stibrany, S Knapp

  • 1Department of Chemistry, Rutgers, State University of New Jersey, New Brunswick 08903, USA.

Acta Crystallographica. Section C, Crystal Structure Communications
|March 15, 1995
PubMed
Summary
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This study reports the first crystal structure of tris-(3,5-dimethylpyrazol-1-yl)methylsilane, revealing a unique silicon-nitrogen pyrazole linkage and distorted tetrahedral geometry around the silicon atom.

Area of Science:

  • Organosilicon Chemistry
  • Coordination Chemistry
  • Crystallography

Background:

  • Silicon-nitrogen bonds are crucial in various chemical applications.
  • Pyrazolyl ligands are versatile in coordination chemistry.
  • Understanding the structural nuances of novel silicon compounds is essential.

Purpose of the Study:

  • To synthesize and characterize tris-(3,5-dimethylpyrazol-1-yl)methylsilane.
  • To determine the crystal structure of the novel compound.
  • To investigate the structural features of the silicon-nitrogen pyrazole linkage.

Main Methods:

  • Single-crystal X-ray diffraction analysis.
  • Molecular structure determination.
  • Bond length and angle measurements.

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Main Results:

  • The crystal structure of tris-(3,5-dimethylpyrazol-1-yl)methylsilane (C16H24N6Si) was successfully determined.
  • A distorted tetrahedral geometry around the silicon atom (SiN(pyrazole)3C) was observed.
  • The first reported Si--N(pyrazole) linkage was identified with a bond length of 1.745 (5) Å.

Conclusions:

  • The synthesis and structural elucidation of tris-(3,5-dimethylpyrazol-1-yl)methylsilane represent a significant advancement.
  • The study establishes a precedent for Si--N(pyrazole) bonding.
  • The findings contribute to the understanding of organosilicon compounds with heterocyclic substituents.