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Accessing multimetallic complexes with a phosphorus(i) zwitterion.

Stephanie C Kosnik1, Maxemilian C Nascimento1, Justin F Binder1

  • 1Department of Chemistry and Biochemistry, The University of Windsor, 401 Sunset Avenue, Windsor, ON N9B 3P4, Canada. cmacd@uwindsor.ca.

Dalton Transactions (Cambridge, England : 2003)
|December 1, 2017
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Summary

Researchers synthesized a novel zwitterionic triphosphenium ligand (L) capable of coordinating with various transition metals. This ligand forms diverse metal carbonyl complexes, showcasing its versatility in coordination chemistry.

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Area of Science:

  • Organometallic Chemistry
  • Coordination Chemistry
  • Materials Science

Background:

  • Zwitterionic molecules offer unique electronic and structural properties.
  • Triphosphenium compounds are less explored as ligands in coordination chemistry.
  • Metal carbonyl complexes are fundamental in catalysis and materials science.

Purpose of the Study:

  • To synthesize and characterize a novel zwitterionic triphosphenium molecule.
  • To investigate the coordination behavior of this molecule with group 6, 7, 8, and 9 metal carbonyl complexes.
  • To explore the formation of mono- and bimetallic complexes.

Main Methods:

  • Photolytic synthesis of metal carbonyl complexes.
  • X-ray diffraction for structural determination.
  • Multinuclear NMR, infrared spectroscopy, and computational investigations for characterization.

Main Results:

  • Synthesis of a zwitterionic triphosphenium ligand (L).
  • Formation of group 6 metal carbonyl complexes ([M(CO)5L]) with metal binding at the P(i) center.
  • Generation of bimetallic complexes with group 6, 7, and 9 metals, featuring diverse binding modes.

Conclusions:

  • The zwitterionic triphosphenium ligand (L) demonstrates versatility as a single- or multidentate ligand.
  • Diverse coordination modes are observed with different transition metal carbonyl complexes.
  • The study provides insights into the synthesis and reactivity of novel organometallic compounds.