The role of pendant amines in the breaking and forming of molecular hydrogen catalyzed by nickel complexes

S Raugei, S Chen, MH Ho… - … A European Journal, 2012 - Wiley Online Library
We present the results of a comprehensive theoretical investigation of the role of pendant
amine ligands in the oxidation of H2 and formation of H2 by [Ni (PR2NR′ 2) 2] 2+ …

Mechanistic Insights into Catalytic H2 Oxidation by Ni Complexes Containing a Diphosphine Ligand with a Positioned Amine Base

JY Yang, RM Bullock, WJ Shaw… - Journal of the …, 2009 - ACS Publications
The mixed-ligand complex [Ni (dppp)(PPh2NBz2)](BF4) 2, 3,(where PPh2NBz2 is 1, 5-
dibenzyl-3, 7-diphenyl-1, 5-diaza-3, 7-diphosphacyclooctane and dppp is 1, 3-bis …

Molecular electrocatalysts for oxidation of hydrogen using earth-abundant metals: shoving protons around with proton relays

RM Bullock, ML Helm - Accounts of Chemical Research, 2015 - ACS Publications
Conspectus Sustainable, carbon-neutral energy is needed to supplant the worldwide
reliance on fossil fuels in order to address the persistent problem of increasing emissions of …

Proton Delivery and Removal in [Ni(PR2NR2)2]2+ Hydrogen Production and Oxidation Catalysts

M O'Hagan, MH Ho, JY Yang, AM Appel… - Journal of the …, 2012 - ACS Publications
To examine the role of proton delivery and removal in the electrocatalytic oxidation and
production of hydrogen by [Ni (PR2NR′ 2) 2] 2+(where PR2NR′ 2 is 1, 5-R′-3, 7-R-1, 5 …

Molecular electrocatalysts for the oxidation of hydrogen and the production of hydrogen–the role of pendant amines as proton relays

DL DuBois, RM Bullock - European Journal of Inorganic …, 2011 - Wiley Online Library
Electrocatalysts for efficient conversion between electricity and chemical bonds will play a
vital role in future systems for storage and delivery of energy. Our research on functional …

Theoretical Analysis of the Sequential Proton-Coupled Electron Transfer Mechanisms for H2 Oxidation and Production Pathways Catalyzed by Nickel Molecular …

LE Fernandez, S Horvath… - The Journal of Physical …, 2012 - ACS Publications
The design of electrocatalysts for the oxidation and production of H2 is important for the
development of alternative energy sources. This Article focuses on the [Ni (P2RN2R′) 2] 2+ …

Two pathways for electrocatalytic oxidation of hydrogen by a nickel bis (diphosphine) complex with pendant amines in the second coordination sphere

JY Yang, SE Smith, T Liu, WG Dougherty… - Journal of the …, 2013 - ACS Publications
A nickel bis (diphosphine) complex containing pendant amines in the second coordination
sphere,[Ni (PCy2N t-Bu2) 2](BF4) 2 (PCy2N t-Bu2= 1, 5-di (tert-butyl)-3, 7-dicyclohexyl-1, 5 …

Conformational dynamics and proton relay positioning in nickel catalysts for hydrogen production and oxidation

JA Franz, M O'Hagan, MH Ho, T Liu, ML Helm… - …, 2013 - ACS Publications
The [Ni (PR2NR′ 2) 2] 2+ complexes (where PR2NR′ 2 is 1, 5-R′-3, 7-R-1, 5-diaza-3, 7-
diphosphacyclooctane) are fast electrocatalysts for H2 production and oxidation. Binding of …

Production of hydrogen by electrocatalysis: making the H–H bond by combining protons and hydrides

RM Bullock, AM Appel, ML Helm - Chemical Communications, 2014 - pubs.rsc.org
Generation of hydrogen by reduction of two protons by two electrons can be catalysed by
molecular electrocatalysts. Determination of the thermodynamic driving force for elimination …

Computing Free Energy Landscapes: Application to Ni-based Electrocatalysts with Pendant Amines for H2 Production and Oxidation

S Chen, MH Ho, RM Bullock, DL DuBois… - ACS …, 2014 - ACS Publications
A general strategy is reported for the computational exploration of catalytic pathways of
molecular catalysts. Our results are based on a set of linear free energy relationships …