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Related Experiment Videos

Chlorobis(triphenylphosphine)nickel(I).

Nicholas C Norman1, A Guy Orpen, Michael J Quayle

  • 1School of Chemistry, University of Bristol, Cantock's Close, Bristol BS8 1TS, England.

Acta Crystallographica. Section C, Crystal Structure Communications
|March 1, 2002
PubMed
Summary

Nickel(I) chloride complexes with triphenylphosphine ([NiCl(PPh3)2]) do not oligomerize in the solid state, contrary to previous findings. This study reveals a unique distorted trigonal-planar geometry for the nickel(I) center.

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Area of Science:

  • Inorganic Chemistry
  • Coordination Chemistry
  • Solid-State Chemistry

Background:

  • Previous studies indicated that formally 15-electron nickel(I) species oligomerize in the solid state.
  • Understanding the solid-state behavior of low-valent metal complexes is crucial for catalysis and materials science.

Purpose of the Study:

  • To investigate the solid-state structure of the nickel(I) complex [NiCl(C18H15P)2].
  • To determine if this 15-electron species exhibits oligomerization in crystals.

Main Methods:

  • Single-crystal X-ray diffraction analysis was performed on [NiCl(C18H15P)2] crystals.
  • Structural data was analyzed to identify intermolecular interactions and coordination geometry.

Main Results:

Related Experiment Videos

  • The crystal structure of [NiCl(C18H15P)2] reveals one molecule per asymmetric unit.
  • No short intermolecular contacts indicative of oligomerization were observed.
  • The nickel(I) center displays a distorted trigonal-planar coordination geometry.

Conclusions:

  • The nickel(I) complex [NiCl(C18H15P)2] does not oligomerize in the solid state, challenging previous assumptions.
  • The observed distorted trigonal-planar geometry at the nickel(I) center is likely due to electronic factors.