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Updated: Mar 25, 2026

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of PhosphorusI
Published on: November 22, 2016
Selective nitration and bromination of surprisingly ruffled phosphorus corroles
Giuseppe Pomarico1, Luca Tortora2, Frank R Fronczek3
1Department of Chemical Science and Technologies, Università di Roma Tor Vergata, 00133 Roma, Italy.
Researchers synthesized functionalized phosphorus corroles, revealing an unexpected ruffled geometry in these stable, optically unique macrocycles. These findings advance material science and biomedical applications.
Area of Science:
- Chemistry
- Materials Science
- Organic Chemistry
Background:
- Phosphorus corroles are gaining interest due to their stability, ease of synthesis, and unique optical properties.
- Functionalization pathways are crucial for optimizing phosphorus corroles for material science and biomedical applications.
Purpose of the Study:
- To investigate the reactivity of phosphorus complexes of 5,10,15-tritolylcorrole towards nitration and bromination.
- To explore the structural characteristics of the resulting substituted phosphorus corroles.
Main Methods:
- Electrophilic aromatic substitution reactions (nitration and bromination) were performed on phosphorus corrole complexes.
- Crystallographic characterization was employed to determine the molecular structure and geometry of the synthesized compounds.
Main Results:
- Successful nitration and bromination of the phosphorus corrole complex were achieved, yielding substituted derivatives.
- Crystallographic analysis revealed an unusual ruffled geometry of the corrole core in the synthesized complexes, a conformation previously thought impossible.
Conclusions:
- Substituted phosphorus corroles can be synthesized, serving as intermediates for advanced materials.
- The discovery of a ruffled corrole core geometry challenges existing structural paradigms and opens new avenues for molecular design.
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