skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Design and reactivity of pentapyridyl metal complexes for ammonia oxidation

Journal Article · · ChemComm
DOI:https://doi.org/10.1039/c9cc01249d· OSTI ID:1542624

In this work, oxidation of NH3 to N2 by pentapyridyl metal complexes via hydrogen atom abstraction was investigated computationally. Quantum chemical analysis reveals insights on orbital symmetry requirements for efficient NH3 oxidation. The most promising complex, [(PY5)Mo(NH3)]2+, was studied experimentally. It shows conversion of NH3 to N2 upon treatment with 2,4,6-tri-tert-butylphenoxyl radical.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Center for Molecular Electrocatalysis (CME); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1542624
Alternate ID(s):
OSTI ID: 1506718
Journal Information:
ChemComm, Vol. 55, Issue 35; ISSN 1359-7345
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 20 works
Citation information provided by
Web of Science

References (38)

Ammonia as a possible element in an energy infrastructure: catalysts for ammonia decomposition journal January 2012
Thermochemistry of Proton-Coupled Electron Transfer Reagents and its Implications journal December 2010
Polar Effects in Nitride Coupling Reactions journal February 2002
Powering the planet: Chemical challenges in solar energy utilization journal October 2006
Homogeneous electrocatalytic oxidation of ammonia to N 2 under mild conditions journal January 2019
On the Origin of Selective Nitrous Oxide N−N Bond Cleavage by Three-Coordinate Molybdenum(III) Complexes journal August 2001
Dinitrogen Formation by Oxidative Intramolecular N---N Coupling in cis,cis- [(bpy) 2 (NH 3 )RuORu(NH 3 )(bpy) 2 ] 4+ journal March 2003
Dinitrogen Cleavage by a Three-Coordinate Molybdenum(III) Complex journal May 1995
Metal–Polypyridyl Catalysts for Electro- and Photochemical Reduction of Water to Hydrogen journal June 2015
Tuning Electronic Structure To Control Manganese Nitride Activation journal November 2016
Nitrido and imido transition metal complexes of Groups 6–8 journal August 2003
Nitrogen-Based Fuels: A Power-to-Fuel-to-Power Analysis journal June 2016
Cationic Charges Leading to an Inverse Free-Energy Relationship for N−N Bond Formation by Mn VI Nitrides journal October 2018
Nitrogen Activation via Three-Coordinate Molybdenum Complexes: Comparison of Density Functional Theory Performance with Wave Function Based Methods journal August 2005
C–N Bond Cleavage of Anilines by a (Salen)ruthenium(VI) Nitrido Complex journal April 2013
Ammonia Oxidation by Abstraction of Three Hydrogen Atoms from a Mo–NH 3 Complex journal February 2017
Computational and Experimental Study of the Mechanism of Hydrogen Generation from Water by a Molecular Molybdenum-Oxo Electrocatalyst journal March 2012
Water-Soluble Iron(IV)-Oxo Complexes Supported by Pentapyridine Ligands: Axial Ligand Effects on Hydrogen Atom and Oxygen Atom Transfer Reactivity journal May 2015
Oxidation of Ammonia in Osmium Polypyridyl Complexes journal May 2000
The Remarkable Reactivity of High Oxidation State Ruthenium and Osmium Polypyridyl Complexes journal December 2003
Nitrogen Cycle Electrocatalysis journal June 2009
Electrochemical generation of hydrogen from acetic acid using a molecular molybdenum–oxo catalyst journal January 2012
Coupling of terminal iridium nitrido complexes journal January 2016
A molecular molybdenum-oxo catalyst for generating hydrogen from water journal April 2010
Oxidation of coordinated ammonia to nitrate journal September 1981
Substitution-induced nitrogen-nitrogen coupling for nitride coordinated to osmium(VI) journal November 1991
Interconversion of Molybdenum Imido and Amido Complexes by Proton-Coupled Electron Transfer journal January 2018
Reversible interconversion between a nitrido complex of osmium(VI) and an ammine complex of osmium(II) journal July 1990
NBO 6.0 : Natural bond orbital analysis program journal March 2013
Towards Catalytic Ammonia Oxidation to Dinitrogen: A Synthetic Cycle by Using a Simple Manganese Complex journal August 2017
Structural selectivity of supported Pd nanoparticles for catalytic NH3 oxidation resolved using combined operando spectroscopy journal January 2019
Powering the planet with solar fuel journal April 2009
Coordination-induced weakening of ammonia, water, and hydrazine X–H bonds in a molybdenum complex journal November 2016
Homolytic N–H Activation of Ammonia: Hydrogen Transfer of Parent Iridium Ammine, Amide, Imide, and Nitride Species journal July 2015
Carbon-free energy: a review of ammonia- and hydrazine-based electrochemical fuel cells journal January 2011
Reactivity of a Ru( iii )–hydroxo complex in substrate oxidation in water journal January 2014
Interconversion of Molybdenum Imido and Amido Complexes by Proton-Coupled Electron Transfer journal January 2018
Nitrogen-Based Fuels: A Power-to-Fuel-to-Power Analysis text January 2016

Cited By (1)

Triple hydrogen atom abstraction from Mn–NH 3 complexes results in cyclophosphazenium cations journal January 2019