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NH/PH isomerization and a Lewis pair for carbon dioxide capture
Brian M Barry1, Diane A Dickie, Luke J Murphy
1Department of Chemistry and Chemical Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States.
Inorganic Chemistry
|July 25, 2013
Summary
Bis(di-i-propylphosphino)amine reacts with tris(pentafluorophenyl)borane to form an adduct. This adduct readily reacts with carbon dioxide, leading to a novel heterocyclic compound formation.
Area of Science:
- Organometallic Chemistry
- Boron Chemistry
- Phosphorus Chemistry
Background:
- Bis(dialkylphosphino)amine ligands are versatile in coordination chemistry.
- Tris(pentafluorophenyl)borane (B(C6F5)3) is a strong Lewis acid used in catalysis and synthesis.
- Understanding ligand reactivity with strong Lewis acids is crucial for developing new chemical transformations.
Purpose of the Study:
- To investigate the reaction between a specific bis(di-i-propylphosphino)amine and B(C6F5)3.
- To explore the reactivity of the resulting adduct with carbon dioxide.
- To characterize any novel compounds formed during these reactions.
Main Methods:
- Synthesis and characterization of the adduct formed from bis(di-i-propylphosphino)amine and B(C6F5)3.
- Reaction of the adduct with carbon dioxide.
- Spectroscopic and structural analysis of reaction products.
Main Results:
- Formation of an adduct with concomitant N/P H-isomerization upon reaction of bis(di-i-propylphosphino)amine with B(C6F5)3.
- Smooth reaction of the adduct with carbon dioxide.
- Isolation and characterization of a novel heterocycle derived from the PNP ligand and B(C6F5)3.
Conclusions:
- The bis(di-i-propylphosphino)amine ligand undergoes N/P H-isomerization upon adduct formation with B(C6F5)3.
- The resulting adduct is reactive towards carbon dioxide, enabling further chemical transformations.
- A new heterocyclic structure involving the PNP ligand and B(C6F5)3 was successfully synthesized.
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