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Chlorinated corroles.

Atif Mahammed1, Mark Botoshansky, Zeev Gross

  • 1Schulich Faculty of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel.

Dalton Transactions (Cambridge, England : 2003)
|August 15, 2012
PubMed
Summary
This summary is machine-generated.

Fully chlorinated corrole was synthesized by reacting a cobalt(III) complex with chlorine. This study details the structural and electronic impacts of chlorination and explores the resulting complex

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Area of Science:

  • Inorganic Chemistry
  • Organic Chemistry
  • Coordination Chemistry

Background:

  • Corroles are macrocyclic ligands structurally related to porphyrins.
  • Fluorinated porphyrinoids are valuable in materials science and catalysis.
  • Cobalt complexes of porphyrinoids exhibit diverse redox and catalytic properties.

Purpose of the Study:

  • To synthesize a fully β-pyrrole chlorinated corrole complex.
  • To investigate the structural and electronic consequences of extensive chlorination on the corrole ligand and cobalt complex.
  • To explore the coordination chemistry of the novel chlorinated corrole.

Main Methods:

  • Synthesis of 5,10,15-tris(pentafluorophenyl)corrole cobalt(III) complex.
  • Electrophilic chlorination of the corrole macrocycle using chlorine gas.
  • Spectroscopic characterization (NMR, UV-Vis, Mass Spectrometry).
  • X-ray crystallography for structural determination.
  • Electrochemical studies to probe electronic effects.

Main Results:

  • Successful synthesis of the fully β-pyrrole chlorinated corrole cobalt(III) complex.
  • Chlorination significantly alters the electronic properties of the corrole ligand, impacting redox potentials.
  • Structural analysis reveals the impact of chlorine substituents on the macrocycle's planarity and cobalt coordination environment.
  • The chlorinated corrole demonstrates unique coordination behavior with other metal ions.

Conclusions:

  • The study presents a novel, fully chlorinated corrole derivative.
  • Chlorination provides a pathway to tune the electronic and structural properties of corrole complexes.
  • These findings open avenues for new applications in catalysis and materials science.