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Abstract
AbstractNickel-catalyzed cross-coupling and photoredox catalytic reactions has found widespread utilities in organic synthesis. Redox processes are key intermediate steps in many catalytic cycles. As a result, it is pertinent to measure and document the redox potentials of various nickel species as precatalysts, catalysts, and intermediates. The redox potentials of a transition-metal complex are governed by its oxidation state, ligand, and the solvent environment. This article tabulates experimentally measured redox potentials of nickel complexes supported on common ligands under various conditions. This review article serves as a versatile tool to help synthetic organic and organometallic chemists evaluate the feasibility and kinetics of redox events occurring at the nickel center, when designing catalytic reactions and preparing nickel complexes.1 Introduction1.1 Scope1.2 Measurement of Formal Redox Potentials1.3 Redox Potentials in Nonaqueous Solution2 Redox Potentials of Nickel Complexes2.1 Redox Potentials of (Phosphine)Ni Complexes2.2 Redox Potentials of (Nitrogen)Ni Complexes2.3 Redox Potentials of (NHC)Ni Complexes
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2
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Zimmermann P, Ar D, Rößler M, Holze P, Cula B, Herwig C, Limberg C. Selective Transformation of Nickel‐Bound Formate to CO or C−C Coupling Products Triggered by Deprotonation and Steered by Alkali‐Metal Ions. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202010180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Philipp Zimmermann
- Institut für Chemie Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Deniz Ar
- Institut für Chemie Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Marie Rößler
- Institut für Chemie Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Patrick Holze
- Institut für Chemie Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Beatrice Cula
- Institut für Chemie Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Christian Herwig
- Institut für Chemie Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Christian Limberg
- Institut für Chemie Humboldt-Universität zu Berlin Brook-Taylor-Straße 2 12489 Berlin Germany
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3
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Zimmermann P, Ar D, Rößler M, Holze P, Cula B, Herwig C, Limberg C. Selective Transformation of Nickel-Bound Formate to CO or C-C Coupling Products Triggered by Deprotonation and Steered by Alkali-Metal Ions. Angew Chem Int Ed Engl 2021; 60:2312-2321. [PMID: 33084156 PMCID: PMC7898393 DOI: 10.1002/anie.202010180] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/30/2020] [Indexed: 11/23/2022]
Abstract
The complexes [LtBu Ni(OCO-κ2 O,C)]M3 [N(SiMe3 )2 ]2 (M=Li, Na, K), synthesized by deprotonation of a nickel formate complex [LtBu NiOOCH] with the corresponding amides M[N(SiMe3 )2 ], feature a NiII -CO2 2- core surrounded by Lewis-acidic cations (M+ ) and the influence of the latter on the behavior and reactivity was studied. The results point to a decrease of CO2 activation within the series Li, Na, and K, which is also reflected in the reactivity with Me3 SiOTf leading to the liberation of CO and formation of a Ni-OSiMe3 complex. Furthermore, in case of K+ , the {[K3 [N(SiMe3 )2 ]2 }+ shell around the Ni-CO2 2- entity was shown to have a large impact on its stabilization and behavior. If the number of K[N(SiMe3 )2 ] equivalents used in the reaction with [LtBu NiOOCH] is decreased from 3 to 0.5, the deprotonated part of the precursor enters a complex reaction sequence with formation of [LtBu NiI (μ-OOCH)NiI LtBu ]K and [LtBu Ni(C2 O4 )NiLtBu ]. The same reaction at higher concentrations additionally led to the formation of a unique hexanuclear NiII complex containing both oxalate and mesoxalate ([O2 C-CO2 -CO2 ]4- ) ligands.
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Affiliation(s)
- Philipp Zimmermann
- Institut für ChemieHumboldt-Universität zu BerlinBrook-Taylor-Straße 212489BerlinGermany
| | - Deniz Ar
- Institut für ChemieHumboldt-Universität zu BerlinBrook-Taylor-Straße 212489BerlinGermany
| | - Marie Rößler
- Institut für ChemieHumboldt-Universität zu BerlinBrook-Taylor-Straße 212489BerlinGermany
| | - Patrick Holze
- Institut für ChemieHumboldt-Universität zu BerlinBrook-Taylor-Straße 212489BerlinGermany
| | - Beatrice Cula
- Institut für ChemieHumboldt-Universität zu BerlinBrook-Taylor-Straße 212489BerlinGermany
| | - Christian Herwig
- Institut für ChemieHumboldt-Universität zu BerlinBrook-Taylor-Straße 212489BerlinGermany
| | - Christian Limberg
- Institut für ChemieHumboldt-Universität zu BerlinBrook-Taylor-Straße 212489BerlinGermany
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4
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Amanullah S, Saha P, Nayek A, Ahmed ME, Dey A. Biochemical and artificial pathways for the reduction of carbon dioxide, nitrite and the competing proton reduction: effect of 2nd sphere interactions in catalysis. Chem Soc Rev 2021; 50:3755-3823. [DOI: 10.1039/d0cs01405b] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Reduction of oxides and oxoanions of carbon and nitrogen are of great contemporary importance as they are crucial for a sustainable environment.
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Affiliation(s)
- Sk Amanullah
- School of Chemical Sciences
- Indian Association for the Cultivation of Science
- Kolkata
- India
| | - Paramita Saha
- School of Chemical Sciences
- Indian Association for the Cultivation of Science
- Kolkata
- India
| | - Abhijit Nayek
- School of Chemical Sciences
- Indian Association for the Cultivation of Science
- Kolkata
- India
| | - Md Estak Ahmed
- School of Chemical Sciences
- Indian Association for the Cultivation of Science
- Kolkata
- India
| | - Abhishek Dey
- School of Chemical Sciences
- Indian Association for the Cultivation of Science
- Kolkata
- India
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5
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Prasad P, Selvan D, Chakraborty S. Biosynthetic Approaches towards the Design of Artificial Hydrogen-Evolution Catalysts. Chemistry 2020; 26:12494-12509. [PMID: 32449989 DOI: 10.1002/chem.202001338] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Indexed: 11/07/2022]
Abstract
Hydrogen is a clean and sustainable form of fuel that can minimize our heavy dependence on fossil fuels as the primary energy source. The need of finding greener ways to generate H2 gas has ignited interest in the research community to synthesize catalysts that can produce H2 by the reduction of H+ . The natural H2 producing enzymes hydrogenases have served as an inspiration to produce catalytic metal centers akin to these native enzymes. In this article we describe recent advances in the design of a unique class of artificial hydrogen evolving catalysts that combine the features of the active site metal(s) surrounded by a polypeptide component. The examples of these biosynthetic catalysts discussed here include i) assemblies of synthetic cofactors with native proteins; ii) peptide-appended synthetic complexes; iii) substitution of native cofactors with non-native cofactors; iv) metal substitution from rubredoxin; and v) a reengineered Cu storage protein into a Ni binding protein. Aspects of key design considerations in the construction of these artificial biocatalysts and insights gained into their chemical reactivity are discussed.
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Affiliation(s)
- Pallavi Prasad
- Department of Chemistry and Biochemistry, University of Mississippi, University, MS, 38677, USA
| | - Dhanashree Selvan
- Department of Chemistry and Biochemistry, University of Mississippi, University, MS, 38677, USA
| | - Saumen Chakraborty
- Department of Chemistry and Biochemistry, University of Mississippi, University, MS, 38677, USA
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Drover MW, Dufour MC, Lesperance‐Nantau LA, Noriega RP, Levin K, Schurko RW. Octaboraneyl Complexes of Nickel: Monomers for Redox‐Active Coordination Polymers. Chemistry 2020; 26:11180-11186. [DOI: 10.1002/chem.202001218] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/17/2020] [Indexed: 12/21/2022]
Affiliation(s)
- Marcus W. Drover
- Department of Chemistry and Biochemistry The University of Windsor 401 Sunset Avenue Windsor ON N9B 3P4 Canada
| | - Maeve C. Dufour
- Department of Chemistry and Biochemistry The University of Windsor 401 Sunset Avenue Windsor ON N9B 3P4 Canada
| | | | - Rayni P. Noriega
- Department of Chemistry and Biochemistry The University of Windsor 401 Sunset Avenue Windsor ON N9B 3P4 Canada
| | - Kirill Levin
- Department of Chemistry and Biochemistry The University of Windsor 401 Sunset Avenue Windsor ON N9B 3P4 Canada
| | - Robert W. Schurko
- Department of Chemistry and Biochemistry The University of Windsor 401 Sunset Avenue Windsor ON N9B 3P4 Canada
- Department of Chemistry and Biochemistry The Florida State University 102 Varsity Way Tallahassee FL 32306-4390 USA
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7
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Jackson MN, Kaminsky CJ, Oh S, Melville JF, Surendranath Y. Graphite Conjugation Eliminates Redox Intermediates in Molecular Electrocatalysis. J Am Chem Soc 2019; 141:14160-14167. [PMID: 31353897 PMCID: PMC6748662 DOI: 10.1021/jacs.9b04981] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
The efficient interconversion
of electrical and chemical energy
requires the intimate coupling of electrons and small-molecule substrates
at catalyst active sites. In molecular electrocatalysis, the molecule
acts as a redox mediator which typically undergoes oxidation or reduction
in a separate step from substrate activation. These mediated pathways
introduce a high-energy intermediate, cap the driving force for substrate
activation at the reduction potential of the molecule, and impede
access to high rates at low overpotentials. Here we show that electronically
coupling a molecular hydrogen evolution catalyst to a graphitic electrode
eliminates stepwise pathways and forces concerted electron transfer
and proton binding. Electrochemical and X-ray absorption spectroscopy
data establish that hydrogen evolution catalysis at the graphite-conjugated
Rh molecule proceeds without first reducing the metal center. These
results have broad implications for the molecular-level design of
energy conversion catalysts.
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Affiliation(s)
- Megan N Jackson
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Corey J Kaminsky
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Seokjoon Oh
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Jonathan F Melville
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Yogesh Surendranath
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
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8
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Jackson M, Pegis ML, Surendranath Y. Graphite-Conjugated Acids Reveal a Molecular Framework for Proton-Coupled Electron Transfer at Electrode Surfaces. ACS CENTRAL SCIENCE 2019; 5:831-841. [PMID: 31139719 PMCID: PMC6535968 DOI: 10.1021/acscentsci.9b00114] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Indexed: 05/21/2023]
Abstract
Proton-coupled electron-transfer (PCET) steps play a key role in energy conversion reactions. Molecular PCET reactions are well-described by "square schemes" in which the overall thermochemistry of the reaction is broken into its constituent proton-transfer and electron-transfer components. Although this description has been essential for understanding molecular PCET, no such framework exists for PCET reactions that take place at electrode surfaces. Herein, we develop a molecular square scheme framework for interfacial PCET by investigating the electrochemistry of molecularly well-defined acid/base sites conjugated to graphitic electrodes. Using cyclic voltammetry, we first demonstrate that, irrespective of the redox properties of the corresponding molecular analogue, proton transfer to graphite-conjugated acid/base sites is coupled to electron transfer. We then show that the thermochemistry of surface PCET events can be described by the pK a of the molecular analogue and the potential of zero free charge (zero-field reduction potential) of the electrode. This work provides a general framework for analyzing and predicting the thermochemistry of interfacial PCET reactions.
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9
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Jackson MN, Jung O, Lamotte HC, Surendranath Y. Donor-Dependent Promotion of Interfacial Proton-Coupled Electron Transfer in Aqueous Electrocatalysis. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00056] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Megan N. Jackson
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Onyu Jung
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Hamish C. Lamotte
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Yogesh Surendranath
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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10
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Liao Q, Liu T, Johnson SI, Klug CM, Wiedner ES, Morris Bullock R, DuBois DL. Evaluation of attractive interactions in the second coordination sphere of iron complexes containing pendant amines. Dalton Trans 2019; 48:4867-4878. [PMID: 30882832 DOI: 10.1039/c9dt00708c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The ability of different ligands to attract a pendant amine is studied in a series of iron complexes.
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Affiliation(s)
- Qian Liao
- Center for Molecular Electrocatalysis
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Tianbiao Liu
- Center for Molecular Electrocatalysis
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Samantha I. Johnson
- Center for Molecular Electrocatalysis
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Christina M. Klug
- Center for Molecular Electrocatalysis
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Eric S. Wiedner
- Center for Molecular Electrocatalysis
- Pacific Northwest National Laboratory
- Richland
- USA
| | - R. Morris Bullock
- Center for Molecular Electrocatalysis
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Daniel L. DuBois
- Center for Molecular Electrocatalysis
- Pacific Northwest National Laboratory
- Richland
- USA
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11
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Lambic NS, Brown CA, Sommer RD, Ison EA. Dramatic Increase in the Rate of Olefin Insertion by Coordination of Lewis Acids to the Oxo Ligand in Oxorhenium(V) Hydrides. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00291] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nikola S. Lambic
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695-8204, United States
| | - Caleb A. Brown
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695-8204, United States
| | - Roger D. Sommer
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695-8204, United States
| | - Elon A. Ison
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695-8204, United States
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12
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Charboneau DJ, Balcells D, Hazari N, Lant HMC, Mayer JM, Melvin PR, Mercado BQ, Morris WD, Repisky M, Suh HW. Dinitrogen-Facilitated Reversible Formation of a Si–H Bond in a Pincer-Supported Ni Complex. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00514] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- David J. Charboneau
- The
Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - David Balcells
- Centre
for Theoretical and Computational Chemistry, Department of Chemistry, University of Oslo, P.O.
Box 1033, Blindern, N-0315 Oslo, Norway
| | - Nilay Hazari
- The
Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Hannah M. C. Lant
- The
Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - James M. Mayer
- The
Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Patrick R. Melvin
- The
Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Brandon Q. Mercado
- The
Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Wesley D. Morris
- The
Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
| | - Michal Repisky
- Centre
for Theoretical and Computational Chemistry (CTCC), University of Tromsø-The Arctic University of Norway, N-9037 Tromsø, Norway
| | - Hee-Won Suh
- The
Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
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13
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Jackson MN, Surendranath Y. Donor-Dependent Kinetics of Interfacial Proton-Coupled Electron Transfer. J Am Chem Soc 2016; 138:3228-34. [PMID: 26862666 DOI: 10.1021/jacs.6b00167] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The effect of the proton donor on the kinetics of interfacial concerted proton-electron transfer (CPET) to polycrystalline Au was probed indirectly by studying the rate of hydrogen evolution from trialkylammonium donors with different steric profiles, but the same pKa. Detailed kinetic studies point to a mechanism for HER catalysis that involves rate-limiting CPET from the proton donor to the electrode surface, allowing this catalytic reaction to serve as a proxy for the rate of interfacial CPET. In acetonitrile electrolyte, triethylammonium (TEAH(+)) displays up to 20-fold faster CPET kinetics than diisopropylethylammonium (DIPEAH(+)) at all measured potentials. In aqueous electrolyte, this steric constraint is largely lifted, suggesting a key role for water in mediating interfacial CPET. In acetonitrile, TEAH(+) also displays a much larger transfer coefficient (β = 0.7) than DIPEAH(+) (β = 0.4), and TEAH(+) displays a potential-dependent H/D kinetic isotope effect that is not observed for DIPEAH(+). These results demonstrate that proton donor structure strongly impacts the free energy landscape for CPET to extended solid surfaces and highlight the crucial role of the proton donor in the kinetics of electrocatalytic energy conversion reactions.
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Affiliation(s)
- Megan N Jackson
- Department of Chemistry, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
| | - Yogesh Surendranath
- Department of Chemistry, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
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14
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Evaluating Activity for Hydrogen-Evolving Cobalt and Nickel Complexes at Elevated Pressures of Hydrogen and Carbon Monoxide. Electrocatalysis (N Y) 2015. [DOI: 10.1007/s12678-015-0281-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Lin T, Ulloa OA, Rauchfuss TB, Gray DL. Diiron Azamonothiolates via Scission of Dithiadiazacyclooctanes by Iron Carbonyls. Eur J Inorg Chem 2015; 2015:4109-4114. [PMID: 26167130 DOI: 10.1002/ejic.201402413] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The reaction of Fe3(CO)12 with the dithiadiazacyclooctanes [SCH2N(R)CH2]2 affords Fe2[SCH2N(Me)CH2](CO)6 (R = Me, Bn). The methyl derivative 1Me was characterized crystallographically (Fe-Fe = 2.5702(5) Å). Its low symmetry is verified by variable temperature 13C NMR spectroscopy which revealed that the turnstile rotation of the S(CH2)Fe(CO)3 and S(NMe)Fe(CO)3 centers are subject to very different energy barriers. Although 1Me resists protonation, it readily undergoes substitution by tertiary phosphines, first at the S(CH2)Fe(CO)3 center, as verified crystallographically for Fe2[SCH2N(Me)CH2](CO)5(PPh3). Substitution by the chelating diphosphine dppe (Ph2PCH2CH2PPh2) gave Fe2[SCH2N(Me)CH2](CO)4(dppe), resulting from substitution at both the S(CH2)Fe(CO)3 and S(NMe)Fe(CO)3 sites.
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Affiliation(s)
- Tai Lin
- School of Chemical Sciences, University of Illinois, Urbana, IL 61801, United States
| | - Olbelina A Ulloa
- School of Chemical Sciences, University of Illinois, Urbana, IL 61801, United States
| | - Thomas B Rauchfuss
- School of Chemical Sciences, University of Illinois, Urbana, IL 61801, United States
| | - Danielle L Gray
- School of Chemical Sciences, University of Illinois, Urbana, IL 61801, United States
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16
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Rodriguez-Maciá P, Dutta A, Lubitz W, Shaw WJ, Rüdiger O. Direkter Leistungsvergleich eines bioinspirierten synthetischen Ni-Katalysators und einer [NiFe]-Hydrogenase, beide kovalent an eine Elektrode gebunden. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201502364] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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17
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Rodriguez-Maciá P, Dutta A, Lubitz W, Shaw WJ, Rüdiger O. Direct Comparison of the Performance of a Bio-inspired Synthetic Nickel Catalyst and a [NiFe]-Hydrogenase, Both Covalently Attached to Electrodes. Angew Chem Int Ed Engl 2015; 54:12303-7. [DOI: 10.1002/anie.201502364] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Indexed: 11/07/2022]
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18
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Wakerley DW, Gross MA, Reisner E. Proton reduction by molecular catalysts in water under demanding atmospheres. Chem Commun (Camb) 2015; 50:15995-8. [PMID: 25407336 DOI: 10.1039/c4cc06159d] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The electrocatalytic proton reduction activity of a Ni bis(diphosphine) (NiP) and a cobaloxime (CoP) catalyst has been studied in water in the presence of the gaseous inhibitors O2 and CO. CoP shows an appreciable tolerance towards O2, but its activity suffers severely in the presence of CO. In contrast, NiP is strongly inhibited by O2, but produces H2 under high CO concentrations.
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Affiliation(s)
- David W Wakerley
- Christian Doppler Laboratory for Sustainable SynGas Chemistry, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK.
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19
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Heterocyclic Phosphines with P-C-X Fragments (X=O, N, P). ADVANCES IN HETEROCYCLIC CHEMISTRY 2015. [DOI: 10.1016/bs.aihch.2015.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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20
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Song LC, Tan H, Luo FX, Wang YX, Ma Z, Niu Z. Synthesis, Structural Characterization, and Catalytic H2 Production of Ferrocenyl (Fc) Group Containing Complexes [Ni(PFc2NAr2)2](BF4)2 (Ar = Ph, p-BrC6H4). Organometallics 2014. [DOI: 10.1021/om500571n] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Li-Cheng Song
- Department of Chemistry,
State Key Laboratory of Elemento-Organic Chemistry, Nankai University, 94
Weijin Road, Tianjin 300071, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| | - Hao Tan
- Department of Chemistry,
State Key Laboratory of Elemento-Organic Chemistry, Nankai University, 94
Weijin Road, Tianjin 300071, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| | - Fei-Xian Luo
- Department of Chemistry,
State Key Laboratory of Elemento-Organic Chemistry, Nankai University, 94
Weijin Road, Tianjin 300071, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| | - Yong-Xiang Wang
- Department of Chemistry,
State Key Laboratory of Elemento-Organic Chemistry, Nankai University, 94
Weijin Road, Tianjin 300071, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| | - Zhen Ma
- Department of Chemistry,
State Key Laboratory of Elemento-Organic Chemistry, Nankai University, 94
Weijin Road, Tianjin 300071, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| | - Zheng Niu
- Department of Chemistry,
State Key Laboratory of Elemento-Organic Chemistry, Nankai University, 94
Weijin Road, Tianjin 300071, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
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21
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Weiss CJ, Das P, Miller DL, Helm ML, Appel AM. Catalytic Oxidation of Alcohol via Nickel Phosphine Complexes with Pendant Amines. ACS Catal 2014. [DOI: 10.1021/cs500853f] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Charles J. Weiss
- Physical
Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, MS K2-57, Richland, Washington 99352, United States
| | - Parthapratim Das
- Physical
Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, MS K2-57, Richland, Washington 99352, United States
| | - Deanna L. Miller
- Physical
Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, MS K2-57, Richland, Washington 99352, United States
| | - Monte L. Helm
- Physical
Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, MS K2-57, Richland, Washington 99352, United States
| | - Aaron M. Appel
- Physical
Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, MS K2-57, Richland, Washington 99352, United States
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22
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Bloch ED, Hudson MR, Mason JA, Chavan S, Crocellà V, Howe JD, Lee K, Dzubak AL, Queen WL, Zadrozny JM, Geier SJ, Lin LC, Gagliardi L, Smit B, Neaton JB, Bordiga S, Brown CM, Long JR. Reversible CO binding enables tunable CO/H₂ and CO/N₂ separations in metal-organic frameworks with exposed divalent metal cations. J Am Chem Soc 2014; 136:10752-61. [PMID: 24999916 DOI: 10.1021/ja505318p] [Citation(s) in RCA: 138] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Six metal-organic frameworks of the M2(dobdc) (M = Mg, Mn, Fe, Co, Ni, Zn; dobdc(4-) = 2,5-dioxido-1,4-benzenedicarboxylate) structure type are demonstrated to bind carbon monoxide reversibly and at high capacity. Infrared spectra indicate that, upon coordination of CO to the divalent metal cations lining the pores within these frameworks, the C-O stretching frequency is blue-shifted, consistent with nonclassical metal-CO interactions. Structure determinations reveal M-CO distances ranging from 2.09(2) Å for M = Ni to 2.49(1) Å for M = Zn and M-C-O angles ranging from 161.2(7)° for M = Mg to 176.9(6)° for M = Fe. Electronic structure calculations employing density functional theory (DFT) resulted in good agreement with the trends apparent in the infrared spectra and crystal structures. These results represent the first crystallographically characterized magnesium and zinc carbonyl compounds and the first high-spin manganese(II), iron(II), cobalt(II), and nickel(II) carbonyl species. Adsorption isotherms indicate reversible adsorption, with capacities for the Fe, Co, and Ni frameworks approaching one CO per metal cation site at 1 bar, corresponding to loadings as high as 6.0 mmol/g and 157 cm(3)/cm(3). The six frameworks display (negative) isosteric heats of CO adsorption ranging from 52.7 to 27.2 kJ/mol along the series Ni > Co > Fe > Mg > Mn > Zn, following the Irving-Williams stability order. The reversible CO binding suggests that these frameworks may be of utility for the separation of CO from various industrial gas mixtures, including CO/H2 and CO/N2. Selectivities determined from gas adsorption isotherm data using ideal adsorbed solution theory (IAST) over a range of gas compositions at 1 bar and 298 K indicate that all six M2(dobdc) frameworks could potentially be used as solid adsorbents to replace current cryogenic distillation technologies, with the choice of M dictating adsorbent regeneration energy and the level of purity of the resulting gases.
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Affiliation(s)
- Eric D Bloch
- Department of Chemistry, University of California , Berkeley, California 94720, United States
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23
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Das AK, Engelhard MH, Bullock RM, Roberts JAS. A hydrogen-evolving Ni(P2N2)2 electrocatalyst covalently attached to a glassy carbon electrode: preparation, characterization, and catalysis. comparisons with the homogeneous analogue. Inorg Chem 2014; 53:6875-85. [PMID: 24971843 DOI: 10.1021/ic500701a] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A hydrogen-evolving homogeneous Ni(P2N2)2 electrocatalyst with peripheral ester groups has been covalently attached to a 1,2,3-triazolyllithium-terminated planar glassy carbon electrode surface. Coupling proceeds with both the Ni(0) and the Ni(II) complexes. X-ray photoemission spectra show excellent agreement between the Ni(0) coupling product and its parent complex, and voltammetry of the surface-confined system shows that a single species predominates with a surface density of 1.3 × 10(-10) mol cm(-2), approaching the value estimated for a densely packed monolayer. With the Ni(II) system, both photoemission and voltammetric data show speciation to unidentified products on coupling, and the surface density is 6.7 × 10(-11) mol cm(-2). The surface-confined Ni(0) complex is an electroctalyst for hydrogen evolution, showing the onset of catalytic current at the same potential as the soluble parent complex. Decomposition of the surface-confined species is observed in acidic acetonitrile. This is interpreted to reflect the lability of the Ni(II)-phosphine interaction and the basicity of the free phosphine and bears on concurrent efforts to implement surface-confined Ni(P2N2)2 complexes in electrochemical or photoelectrochemical devices.
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Affiliation(s)
- Atanu K Das
- Center for Molecular Electrocatalysis, Physical Sciences Division, K2-57, Pacific Northwest National Laboratory , P.O. Box 999, Richland, Washington 99352, United States
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24
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Dutta A, Roberts JAS, Shaw WJ. Arginine-containing ligands enhance H₂ oxidation catalyst performance. Angew Chem Int Ed Engl 2014; 53:6487-91. [PMID: 24820824 DOI: 10.1002/anie.201402304] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Indexed: 12/25/2022]
Abstract
Hydrogenase enzymes use Ni and Fe to oxidize H2 at high turnover frequencies (TOF) (up to 10,000 s(-1)) and low overpotentials (<100 mV). In comparison, the fastest reported synthetic electrocatalyst, [Ni(II)(P(Cy)2N(tBu)2)2](2+), oxidizes H2 at 60 s(-1) in MeCN under 1 atm H2 with an unoptimized overpotential of ca. 500 mV using triethylamine as a base. Here we show that a structured outer coordination sphere in a Ni electrocatalyst enhances H2 oxidation activity: [Ni(II)(P(Cy)2N(Arg)2)2](8+) (Arg=arginine) has a TOF of 210 s(-1) in water with high energy efficiency (180 mV overpotential) under 1 atm H2 , and 144,000 s(-1) (460 mV overpotential) under 133 atm H2. The complex is active from pH 0-14 and is faster at low pH, the most relevant condition for fuel cells. The arginine substituents increase TOF and may engage in an intramolecular guanidinium interaction that assists in H2 activation, while the COOH groups facilitate rapid proton movement. These results emphasize the critical role of features beyond the active site in achieving fast, efficient catalysis.
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Affiliation(s)
- Arnab Dutta
- Pacific Northwest National Laboratory, 902 Battelle Blvd., Richland, WA 99352 (USA)
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25
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Dutta A, Roberts JAS, Shaw WJ. Arginine‐Containing Ligands Enhance H
2
Oxidation Catalyst Performance. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201402304] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Arnab Dutta
- Pacific Northwest National Laboratory, 902 Battelle Blvd., Richland, WA 99352 (USA)
| | - John A. S. Roberts
- Pacific Northwest National Laboratory, 902 Battelle Blvd., Richland, WA 99352 (USA)
| | - Wendy J. Shaw
- Pacific Northwest National Laboratory, 902 Battelle Blvd., Richland, WA 99352 (USA)
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26
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Affiliation(s)
- Daniel L. DuBois
- Center for Molecular Electrocatalysis, Chemical and Materials
Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352, United States
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27
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Wilson AD, Stewart FF. Structure–function study of tertiary amines as switchable polarity solvents. RSC Adv 2014. [DOI: 10.1039/c3ra47724j] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A series of tertiary amines have been screened for their function as switchable polarity solvents (SPS). The relative ratios of tertiary amine and carbonate species as well as maximum possible concentration were determined. A new form of SPS with an amine : carbonate ratio significantly greater than unity has been identified. The N,N-dimethyl-n-alkylamine structure has been identified as important to the function of an SPS.
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28
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Chelating cyclic aminomethylphosphines and their transition metal complexes as a promising basis of bioinspired mimetic catalysts. MENDELEEV COMMUNICATIONS 2013. [DOI: 10.1016/j.mencom.2013.09.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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29
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Yang JY, Smith SE, Liu T, Dougherty WG, Hoffert WA, Kassel WS, Rakowski DuBois M, DuBois DL, Bullock RM. Two pathways for electrocatalytic oxidation of hydrogen by a nickel bis(diphosphine) complex with pendant amines in the second coordination sphere. J Am Chem Soc 2013; 135:9700-12. [PMID: 23631473 DOI: 10.1021/ja400705a] [Citation(s) in RCA: 103] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A nickel bis(diphosphine) complex containing pendant amines in the second coordination sphere, [Ni(P(Cy)2N(t-Bu)2)2](BF4)2 (P(Cy)2N(t-Bu)2 = 1,5-di(tert-butyl)-3,7-dicyclohexyl-1,5-diaza-3,7-diphosphacyclooctane), is an electrocatalyst for hydrogen oxidation. The addition of hydrogen to the Ni(II) complex gives three isomers of the doubly protonated Ni(0) complex [Ni(P(Cy)2N(t-Bu)2H)2](BF4)2. Using the pKa values and Ni(II/I) and Ni(I/0) redox potentials in a thermochemical cycle, the free energy of hydrogen addition to [Ni(P(Cy)2N(t-Bu)2)2](2+) was determined to be -7.9 kcal mol(-1). The catalytic rate observed in dry acetonitrile for the oxidation of H2 depends on base size, with larger bases (NEt3, t-BuNH2) resulting in much slower catalysis than n-BuNH2. The addition of water accelerates the rate of catalysis by facilitating deprotonation of the hydrogen addition product before oxidation, especially for the larger bases NEt3 and t-BuNH2. This catalytic pathway, where deprotonation occurs prior to oxidation, leads to an overpotential that is 0.38 V lower compared to the pathway where oxidation precedes proton movement. Under the optimal conditions of 1.0 atm H2 using n-BuNH2 as a base and with added water, a turnover frequency of 58 s(-1) is observed at 23 °C.
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Affiliation(s)
- Jenny Y Yang
- Center for Molecular Electrocatalysis, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352, USA.
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30
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31
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Chenevier P, Mugherli L, Darbe S, Darchy L, DiManno S, Tran PD, Valentino F, Iannello M, Volbeda A, Cavazza C, Artero V. Hydrogenase enzymes: Application in biofuel cells and inspiration for the design of noble-metal free catalysts for H2 oxidation. CR CHIM 2013. [DOI: 10.1016/j.crci.2012.11.006] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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32
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Wang WH, Muckerman JT, Fujita E, Himeda Y. Mechanistic Insight through Factors Controlling Effective Hydrogenation of CO2 Catalyzed by Bioinspired Proton-Responsive Iridium(III) Complexes. ACS Catal 2013. [DOI: 10.1021/cs400172j] [Citation(s) in RCA: 151] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Wan-Hui Wang
- National Institute of Advanced Industrial Science and Technology, Tsukuba
Central 5-2, 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8565 Japan
- Japan Science and Technology Agency, ACT-C, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012
Japan
| | - James T. Muckerman
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973,
United States
| | - Etsuko Fujita
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973,
United States
| | - Yuichiro Himeda
- National Institute of Advanced Industrial Science and Technology, Tsukuba
Central 5-2, 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8565 Japan
- Japan Science and Technology Agency, ACT-C, 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012
Japan
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33
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Stewart MP, Ho MH, Wiese S, Lindstrom ML, Thogerson CE, Raugei S, Bullock RM, Helm ML. High Catalytic Rates for Hydrogen Production Using Nickel Electrocatalysts with Seven-Membered Cyclic Diphosphine Ligands Containing One Pendant Amine. J Am Chem Soc 2013; 135:6033-46. [DOI: 10.1021/ja400181a] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Michael P. Stewart
- Center for Molecular Electrocatalysis, Physical Sciences
Division, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352, United States
| | - Ming-Hsun Ho
- Center for Molecular Electrocatalysis, Physical Sciences
Division, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352, United States
| | - Stefan Wiese
- Center for Molecular Electrocatalysis, Physical Sciences
Division, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352, United States
| | - Mary Lou Lindstrom
- Center for Molecular Electrocatalysis, Physical Sciences
Division, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352, United States
| | - Colleen E. Thogerson
- Center for Molecular Electrocatalysis, Physical Sciences
Division, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352, United States
| | - Simone Raugei
- Center for Molecular Electrocatalysis, Physical Sciences
Division, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352, United States
| | - R. Morris Bullock
- Center for Molecular Electrocatalysis, Physical Sciences
Division, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352, United States
| | - Monte L. Helm
- Center for Molecular Electrocatalysis, Physical Sciences
Division, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352, United States
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34
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Shaw WJ, Helm ML, DuBois DL. A modular, energy-based approach to the development of nickel containing molecular electrocatalysts for hydrogen production and oxidation. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2013; 1827:1123-39. [PMID: 23313415 DOI: 10.1016/j.bbabio.2013.01.003] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Revised: 12/26/2012] [Accepted: 01/04/2013] [Indexed: 11/18/2022]
Abstract
This review discusses the development of molecular electrocatalysts for H2 production and oxidation based on nickel. A modular approach is used in which the structure of the catalyst is divided into first, second, and outer coordination spheres. The first coordination sphere consists of the ligands bound directly to the metal center, and this coordination sphere can be used to control such factors as the presence or absence of vacant coordination sites, redox potentials, hydride donor abilities and other important thermodynamic parameters. The second coordination sphere includes functional groups such as pendent acids or bases that can interact with bound substrates such as H2 molecules and hydride ligands, but that do not form strong bonds with the metal center. These functional groups can play diverse roles such as assisting the heterolytic cleavage of H2, controlling intra- and intermolecular proton transfer reactions, and providing a physical pathway for coupling proton and electron transfer reactions. By controlling both the hydride donor ability of the catalysts using the first coordination sphere and the proton donor abilities of the functional groups in the second coordination sphere, catalysts can be designed that are biased toward H2 production, oxidation, or bidirectional (catalyzing both H2 oxidation and production). The outer coordination sphere is defined as that portion of the catalytic system that is beyond the second coordination sphere. This coordination sphere can assist in the delivery of protons and electrons to and from the catalytically active site, thereby adding another important avenue for controlling catalytic activity. Many features of these simple catalytic systems are good models for enzymes, and these simple systems provide insights into enzyme function and reactivity that may be difficult to probe in enzymes. This article is part of a Special Issue entitled: Metals in Bioenergetics and Biomimetics Systems.
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Affiliation(s)
- Wendy J Shaw
- Pacific Northwest National Laboratory, Richland, WA 99352, USA
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35
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Tate CW, Gee AD, Vilar R, White AJ, Long NJ. Reversible carbon monoxide binding at copper(I) P–S–X (X = N, O) coordination polymers. J Organomet Chem 2012. [DOI: 10.1016/j.jorganchem.2012.05.032] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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36
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Karnahl M, Orthaber A, Tschierlei S, Nagarajan L, Ott S. Structural and spectroscopic characterization of tetranuclear iron complexes containing a bridge. J COORD CHEM 2012. [DOI: 10.1080/00958972.2012.701008] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Michael Karnahl
- a Department of Chemistry, Ångström Laboratory , Uppsala University , Box 523, 75120 Uppsala , Sweden
| | - Andreas Orthaber
- a Department of Chemistry, Ångström Laboratory , Uppsala University , Box 523, 75120 Uppsala , Sweden
| | - Stefanie Tschierlei
- a Department of Chemistry, Ångström Laboratory , Uppsala University , Box 523, 75120 Uppsala , Sweden
| | - Loganathan Nagarajan
- b Department of Chemistry, Organic Chemistry , Lund University , Box 124, 22100 Lund , Sweden
| | - Sascha Ott
- a Department of Chemistry, Ångström Laboratory , Uppsala University , Box 523, 75120 Uppsala , Sweden
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37
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Jain A, Reback ML, Lindstrom ML, Thogerson CE, Helm ML, Appel AM, Shaw WJ. Investigating the role of the outer-coordination sphere in [Ni(P(Ph)2N(Ph‑R)2)2]2+ hydrogenase mimics. Inorg Chem 2012; 51:6592-602. [PMID: 22662880 DOI: 10.1021/ic300149x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of dipeptide substituted nickel complexes with the general formula, [Ni(P(Ph)(2)N(NNA-amino acid/ester)(2))(2)](BF(4))(2), have been synthesized and characterized (P(2)N(2) = 1,5-diaza-3,7-diphosphacyclooctane, and the dipeptide consists of the non-natural amino acid, 3-(4-aminophenyl)propionic acid (NNA), coupled to amino acid/esters = glutamic acid, alanine, lysine, and aspartic acid). Each of these complexes is an active electrocatalyst for H(2) production. The effects of the outer-coordination sphere on the catalytic activity for the production of H(2) were investigated; specifically, the impact of sterics, the ability of the side chain or backbone to protonate and the pK(a) values of the amino acid side chains were studied by varying the amino acids in the dipeptide. The catalytic rates of the different dipeptide substituted nickel complexes varied by over an order of magnitude. The amino acid derivatives display the fastest rates, while esterification of the terminal carboxylic acids and side chains resulted in a decrease in the catalytic rate by 50-70%, implicating a significant role of protonated sites in the outer-coordination sphere on catalytic activity. For both the amino acid and ester derivatives, the complexes with the largest substituents display the fastest rates, indicating that catalytic activity is not hindered by steric bulk. These studies demonstrate the significant contribution that the outer-coordination sphere can have in tuning the catalytic activity of small molecule hydrogenase mimics.
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Affiliation(s)
- Avijita Jain
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, USA
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38
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Liu T, Chen S, O’Hagan MJ, Rakowski DuBois M, Bullock RM, DuBois DL. Synthesis, Characterization, and Reactivity of Fe Complexes Containing Cyclic Diazadiphosphine Ligands: The Role of the Pendant Base in Heterolytic Cleavage of H2. J Am Chem Soc 2012; 134:6257-72. [DOI: 10.1021/ja211193j] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Tianbiao Liu
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999,
K2-57, Richland, Washington 99352, United States
| | - Shentan Chen
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999,
K2-57, Richland, Washington 99352, United States
| | - Molly J. O’Hagan
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999,
K2-57, Richland, Washington 99352, United States
| | - Mary Rakowski DuBois
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999,
K2-57, Richland, Washington 99352, United States
| | - R. Morris Bullock
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999,
K2-57, Richland, Washington 99352, United States
| | - Daniel L. DuBois
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999,
K2-57, Richland, Washington 99352, United States
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39
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Latypov SK, Strelnik AG, Ignatieva SN, Hey-Hawkins E, Balueva AS, Karasik AA, Sinyashin OG. Structure and Dynamics of P,N-Containing Heterocycles and Their Metal Complexes in Solution. J Phys Chem A 2012; 116:3182-93. [PMID: 22414208 DOI: 10.1021/jp209281c] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Shamil K. Latypov
- State Budgetary-Funded Institution of Science, A. E. Arbuzov Institute of Organic and Physical Chemistry of Kazan Scientific Center of Russian Academy of Sciences, 420088 Kazan, 8 Arbuzov str., Russia
| | - Anna G. Strelnik
- State Budgetary-Funded Institution of Science, A. E. Arbuzov Institute of Organic and Physical Chemistry of Kazan Scientific Center of Russian Academy of Sciences, 420088 Kazan, 8 Arbuzov str., Russia
| | - Svetlana N. Ignatieva
- State Budgetary-Funded Institution of Science, A. E. Arbuzov Institute of Organic and Physical Chemistry of Kazan Scientific Center of Russian Academy of Sciences, 420088 Kazan, 8 Arbuzov str., Russia
| | - Evamarie Hey-Hawkins
- Institut für Anorganische Chemie der Universität Leipzig, Johannisallee 29, D-04103 Leipzig, Germany
| | - Anna S. Balueva
- State Budgetary-Funded Institution of Science, A. E. Arbuzov Institute of Organic and Physical Chemistry of Kazan Scientific Center of Russian Academy of Sciences, 420088 Kazan, 8 Arbuzov str., Russia
| | - Andrey A. Karasik
- State Budgetary-Funded Institution of Science, A. E. Arbuzov Institute of Organic and Physical Chemistry of Kazan Scientific Center of Russian Academy of Sciences, 420088 Kazan, 8 Arbuzov str., Russia
| | - Oleg G. Sinyashin
- State Budgetary-Funded Institution of Science, A. E. Arbuzov Institute of Organic and Physical Chemistry of Kazan Scientific Center of Russian Academy of Sciences, 420088 Kazan, 8 Arbuzov str., Russia
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40
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Tate CW, deMello A, Gee AD, Kealey S, Vilar R, White AJP, Long NJ. Hemilabile and reversible carbon monoxide binding properties of iron(ii), cobalt(ii) and nickel(ii) complexes containing a new tridentate P–S–N ligand. Dalton Trans 2012; 41:83-9. [DOI: 10.1039/c1dt11248a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Waggoner NW, Spreer LS, Boro BJ, DuBois DL, Helm ML. Group 10 complexes containing phosphinomethylamine ligands: Synthesis, structural analysis and electrochemical studies. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2011.07.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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42
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O’Hagan M, Shaw WJ, Raugei S, Chen S, Yang JY, Kilgore UJ, DuBois DL, Bullock RM. Moving Protons with Pendant Amines: Proton Mobility in a Nickel Catalyst for Oxidation of Hydrogen. J Am Chem Soc 2011; 133:14301-12. [DOI: 10.1021/ja201838x] [Citation(s) in RCA: 142] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Molly O’Hagan
- Center for Molecular Electrocatalysis, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352, United States
| | - Wendy J. Shaw
- Center for Molecular Electrocatalysis, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352, United States
| | - Simone Raugei
- Center for Molecular Electrocatalysis, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352, United States
| | - Shentan Chen
- Center for Molecular Electrocatalysis, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352, United States
| | - Jenny Y. Yang
- Center for Molecular Electrocatalysis, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352, United States
| | - Uriah J. Kilgore
- Center for Molecular Electrocatalysis, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352, United States
| | - Daniel L. DuBois
- Center for Molecular Electrocatalysis, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352, United States
| | - R. Morris Bullock
- Center for Molecular Electrocatalysis, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352, United States
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43
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Kilgore UJ, Roberts JAS, Pool DH, Appel AM, Stewart MP, DuBois MR, Dougherty WG, Kassel WS, Bullock RM, DuBois DL. [Ni(PPh2NC6H4X2)2]2+Complexes as Electrocatalysts for H2Production: Effect of Substituents, Acids, and Water on Catalytic Rates. J Am Chem Soc 2011; 133:5861-72. [DOI: 10.1021/ja109755f] [Citation(s) in RCA: 328] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Jain A, Lense S, Linehan JC, Raugei S, Cho H, DuBois DL, Shaw WJ. Incorporating peptides in the outer-coordination sphere of bioinspired electrocatalysts for hydrogen production. Inorg Chem 2011; 50:4073-85. [PMID: 21456543 DOI: 10.1021/ic1025872] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Four new cyclic 1,5-diaza-3,7-diphosphacyclooctane ligands have been prepared and used to synthesize [Ni(P(Ph)(2)N(R)(2))(2)](2+) complexes in which R is a mono- or dipeptide. These complexes represent a first step in the development of an outer-coordination sphere for this class of complexes that can mimic the outer-coordination sphere of the active sites of hydrogenase enzymes. Importantly, these complexes retain the electrocatalytic activity of the parent [Ni(P(Ph)(2)N(Ph)(2))(2)](2+) complex in an acetonitrile solution with turnover frequencies for hydrogen production ranging from 14 to 25 s(-1) in the presence of p-cyanoanilinium trifluoromethanesulfonate and from 135 to 1000 s(-1) in the presence of protonated dimethylformamide, with moderately low overpotentials, ∼0.3 V. The addition of small amounts of water results in rate increases of 2-7 times. Unlike the parent complex, these complexes demonstrate dynamic structural transformations in solution. These results establish a building block from which larger peptide scaffolding can be added to allow the [Ni(P(R)(2)N(R')(2))(2)](2+) molecular catalytic core to begin to mimic the multifunctional outer-coordination sphere of enzymes.
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Affiliation(s)
- Avijita Jain
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, USA
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Tran PD, Le Goff A, Heidkamp J, Jousselme B, Guillet N, Palacin S, Dau H, Fontecave M, Artero V. Noncovalent Modification of Carbon Nanotubes with Pyrene-Functionalized Nickel Complexes: Carbon Monoxide Tolerant Catalysts for Hydrogen Evolution and Uptake. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201005427] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Tran PD, Le Goff A, Heidkamp J, Jousselme B, Guillet N, Palacin S, Dau H, Fontecave M, Artero V. Noncovalent Modification of Carbon Nanotubes with Pyrene-Functionalized Nickel Complexes: Carbon Monoxide Tolerant Catalysts for Hydrogen Evolution and Uptake. Angew Chem Int Ed Engl 2011; 50:1371-4. [DOI: 10.1002/anie.201005427] [Citation(s) in RCA: 219] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2010] [Indexed: 11/08/2022]
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Gordon JC, Kubas GJ. Perspectives on How Nature Employs the Principles of Organometallic Chemistry in Dihydrogen Activation in Hydrogenases. Organometallics 2010. [DOI: 10.1021/om100436c] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- John C. Gordon
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Gregory J. Kubas
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
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Welch KD, Dougherty WG, Kassel WS, DuBois DL, Bullock RM. Synthesis, Structures, and Reactions of Manganese Complexes Containing Diphosphine Ligands with Pendant Amines. Organometallics 2010. [DOI: 10.1021/om100668e] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kevin D. Welch
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352
| | - William G. Dougherty
- Department of Chemistry and Biochemistry, Villanova University, Villanova, Pennsylvania 19085
| | - W. Scott Kassel
- Department of Chemistry and Biochemistry, Villanova University, Villanova, Pennsylvania 19085
| | - Daniel L. DuBois
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352
| | - R. Morris Bullock
- Chemical and Materials Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352
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Liu YC, Tu LK, Yen TH, Lee GH, Yang ST, Chiang MH. Secondary Coordination Sphere Interactions within the Biomimetic Iron Azadithiolate Complexes Related to Fe-Only Hydrogenase: Dynamic Measure of Electron Density about the Fe Sites. Inorg Chem 2010; 49:6409-20. [DOI: 10.1021/ic100484a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yu-Chiao Liu
- Institute of Chemistry, Academia Sinica, Nankang, Taipei 115, Taiwan
| | - Ling-Kuang Tu
- Institute of Chemistry, Academia Sinica, Nankang, Taipei 115, Taiwan
| | - Tao-Hung Yen
- Institute of Chemistry, Academia Sinica, Nankang, Taipei 115, Taiwan
| | - Gene-Hsiang Lee
- Instrumentation Center, National Taiwan University, Taipei 106, Taiwan
| | - Shu-Ting Yang
- Institute of Chemistry, Academia Sinica, Nankang, Taipei 115, Taiwan
| | - Ming-Hsi Chiang
- Institute of Chemistry, Academia Sinica, Nankang, Taipei 115, Taiwan
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50
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Yang JY, Chen S, Dougherty WG, Kassel WS, Bullock RM, DuBois DL, Raugei S, Rousseau R, Dupuis M, DuBois MR. Hydrogen oxidation catalysis by a nickel diphosphine complex with pendant tert-butyl amines. Chem Commun (Camb) 2010; 46:8618-20. [DOI: 10.1039/c0cc03246h] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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