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A Terminal Chlorophosphinidene Complex.

Josh Abbenseth1, Sven Schneider1

  • 1Institute für Anorganische Chemie Universität Göttingen Tammannstraße 4 37077 Göttingen.

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|August 4, 2020
PubMed
Summary
This summary is machine-generated.

Researchers developed the first stable terminal chlorophosphinidene complex. This breakthrough enables new PCl-transfer reactions, advancing organophosphorus chemistry.

Keywords:
Density functional calculationsNatural localized molecular orbital (NLMO)OsmiumPhosphinidenePincer

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Area of Science:

  • Organometallic Chemistry
  • Phosphorus Chemistry

Background:

  • Terminal phosphinidene complexes (M=PR) are key for PR-transfer reactions.
  • Isolable terminal chlorophosphinidenes (M=PCl) have remained elusive, with only transient intermediates reported.

Purpose of the Study:

  • To synthesize and characterize the first isolable terminal chlorophosphinidene complex.
  • To investigate the transfer of PCl using a novel phosphanorbornadiene precursor.

Main Methods:

  • PCl transfer from a chloro-substituted dibenzo-7λ³-phosphanorbornadiene.
  • Synthesis of a square-planar osmium(II) PNP pincer complex.
  • Computational examination of Os=P bonding.

Main Results:

  • The first isolable terminal chlorophosphinidene complex was successfully synthesized.
  • The resulting complex exhibits remarkable thermal stability.
  • Computational analysis revealed highly covalent {OsII=PICl} double bonding.

Conclusions:

  • This work presents the first stable terminal chlorophosphinidene complex.
  • The findings open new avenues for PCl-transfer reactions and organophosphorus compound synthesis.