Triple Hydrogen Atom Abstraction from Mn-NH3 Complexes Results in Cyclophosphazenium Cations
- BATTELLE (PACIFIC NW LAB)
- University of Washington
All three hydrogen atoms of the NH3 ligand of [Mn(depe)2(CO)(NH3)]+ are abstracted in reactions with 2,4,6-tri-tert-butylphenoxyl radical, resulting in the isolation of a rare cyclophosphazenium cation [(Et2P(CH2)2PEt2)N]+, in 76% yield. Similar reactions are observed for [Mn(dppe)2(CO)(NH3)]+. Computational studies suggest that insertion of NH into a Mn-P bond provides a strong thermodynamic driving force. Contextualization of this surprising reaction in the paucity of NH3 oxidation by molecular complexes provides insights on catalyst design and breaking strong N-H bonds.
- Research Organization:
- Energy Frontier Research Centers (EFRC) (United States). Center for Molecular Electrocatalysis (CME); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 1614923
- Report Number(s):
- PNNL-SA-144932
- Journal Information:
- Chemical Communications, Journal Name: Chemical Communications Journal Issue: 93 Vol. 55
- Country of Publication:
- United States
- Language:
- English
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