[FeFe]-Hydrogenases: maturation and reactivity of enzymatic systems and overview of biomimetic models

JT Kleinhaus, F Wittkamp, S Yadav… - Chemical Society …, 2021 - pubs.rsc.org
While hydrogen plays an ever-increasing role in modern society, nature has utilized
hydrogen since a very long time as an energy carrier and storage molecule. Among the …

Hydrogenase enzymes and their synthetic models: the role of metal hydrides

D Schilter, JM Camara, MT Huynh… - Chemical …, 2016 - ACS Publications
Hydrogenase enzymes efficiently process H2 and protons at organometallic FeFe, NiFe, or
Fe active sites. Synthetic modeling of the many H2ase states has provided insight into …

Hydrogenases

W Lubitz, H Ogata, O Rudiger, E Reijerse - Chemical reviews, 2014 - ACS Publications
The reaction takes place at a specialized metal center that dramatically increases the acidity
of H2 and leads to a heterolytic splitting of the molecule which is strongly accelerated by the …

Frontiers, Opportunities, and Challenges in Biochemical and Chemical Catalysis of CO2 Fixation

AM Appel, JE Bercaw, AB Bocarsly, H Dobbek… - Chemical …, 2013 - ACS Publications
Two major energy-related problems confront the world in the next 50 years. First, increased
worldwide competition for gradually depleting fossil fuel reserves (derived from past …

Biochemical and artificial pathways for the reduction of carbon dioxide, nitrite and the competing proton reduction: effect of 2 nd sphere interactions in catalysis

S Amanullah, P Saha, A Nayek, ME Ahmed… - Chemical Society …, 2021 - pubs.rsc.org
Reduction of oxides and oxoanions of carbon and nitrogen are of great contemporary
importance as they are crucial for a sustainable environment. Substantial research has been …

Diiron azadithiolates as models for the [FeFe]-hydrogenase active site and paradigm for the role of the second coordination sphere

TB Rauchfuss - Accounts of chemical research, 2015 - ACS Publications
Conspectus The [FeFe] hydrogenases (H2ases) catalyze the redox reaction that
interconverts protons and H2. This area of biocatalysis has attracted attention because the …

Nickel pyridinethiolate complexes as catalysts for the light-driven production of hydrogen from aqueous solutions in noble-metal-free systems

Z Han, L Shen, WW Brennessel… - Journal of the …, 2013 - ACS Publications
A series of mononuclear nickel (II) thiolate complexes (Et4N) Ni (X-pyS) 3 (Et4N=
tetraethylammonium; X= 5-H (1a), 5-Cl (1b), 5-CF3 (1c), 6-CH3 (1d); pyS= pyridine-2 …

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 …

Combining acid–base, redox and substrate binding functionalities to give a complete model for the [FeFe]-hydrogenase

JM Camara, TB Rauchfuss - Nature chemistry, 2012 - nature.com
Some enzymes function by coupling substrate turnover with electron transfer from a redox
cofactor such as ferredoxin. In the [FeFe]-hydrogenases, nature's fastest catalysts for the …

Synthetic models for the active site of the [FeFe]-hydrogenase: catalytic proton reduction and the structure of the doubly protonated intermediate

ME Carroll, BE Barton, TB Rauchfuss… - Journal of the American …, 2012 - ACS Publications
This report compares biomimetic hydrogen evolution reaction catalysts with and without the
amine cofactor (adtNH): Fe2 (adtNH)(CO) 2 (dppv) 2 (1 NH) and Fe2 (pdt)(CO) 2 (dppv) 2 …