1
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Wilson DWN, Thompson BC, Collauto A, Hooper RX, Knapp CE, Roessler MM, Musgrave RA. Mixed Valence {Ni 2+Ni 1+} Clusters as Models of Acetyl Coenzyme A Synthase Intermediates. J Am Chem Soc 2024; 146:21034-21043. [PMID: 39023163 PMCID: PMC11295191 DOI: 10.1021/jacs.4c06241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Revised: 06/12/2024] [Accepted: 06/13/2024] [Indexed: 07/20/2024]
Abstract
Acetyl coenzyme A synthase (ACS) catalyzes the formation and deconstruction of the key biological metabolite, acetyl coenzyme A (acetyl-CoA). The active site of ACS features a {NiNi} cluster bridged to a [Fe4S4]n+ cubane known as the A-cluster. The mechanism by which the A-cluster functions is debated, with few model complexes able to replicate the oxidation states, coordination features, or reactivity proposed in the catalytic cycle. In this work, we isolate the first bimetallic models of two hypothesized intermediates on the paramagnetic pathway of the ACS function. The heteroligated {Ni2+Ni1+} cluster, [K(12-crown-4)2][1], effectively replicates the coordination number and oxidation state of the proposed "Ared" state of the A-cluster. Addition of carbon monoxide to [1]- allows for isolation of a dinuclear {Ni2+Ni1+(CO)} complex, [K(12-crown-2)n][2] (n = 1-2), which bears similarity to the "ANiFeC" enzyme intermediate. Structural and electronic properties of each cluster are elucidated by X-ray diffraction, nuclear magnetic resonance, cyclic voltammetry, and UV/vis and electron paramagnetic resonance spectroscopies, which are supplemented by density functional theory (DFT) calculations. Calculations indicate that the pseudo-T-shaped geometry of the three-coordinate nickel in [1]- is more stable than the Y-conformation by 22 kcal mol-1, and that binding of CO to Ni1+ is barrierless and exergonic by 6 kcal mol-1. UV/vis absorption spectroscopy on [2]- in conjunction with time-dependent DFT calculations indicates that the square-planar nickel site is involved in electron transfer to the CO π*-orbital. Further, we demonstrate that [2]- promotes thioester synthesis in a reaction analogous to the production of acetyl coenzyme A by ACS.
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Affiliation(s)
- Daniel W. N. Wilson
- Department
of Chemistry, King’s College London, 7 Trinity Street, London SE1 1DB, U.K.
- Department
of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
| | - Benedict C. Thompson
- Department
of Chemistry, King’s College London, 7 Trinity Street, London SE1 1DB, U.K.
| | - Alberto Collauto
- Department
of Chemistry and Centre for Pulse EPR Spectroscopy, Imperial College London, 82 Wood Lane, London W12
0BZ, U.K.
| | - Reagan X. Hooper
- Stanford
PULSE Institute, SLAC National Accelerator
Laboratory, Menlo Park, California 94025, United States
| | - Caroline E. Knapp
- Department
of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ, U.K.
| | - Maxie M. Roessler
- Department
of Chemistry and Centre for Pulse EPR Spectroscopy, Imperial College London, 82 Wood Lane, London W12
0BZ, U.K.
| | - Rebecca A. Musgrave
- Department
of Chemistry, King’s College London, 7 Trinity Street, London SE1 1DB, U.K.
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2
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Park S, Seo MS, Kim M, Lee KM, Graham PM, Lee Y. Reactivity of low-valent nickel carbonyl species supported by acridane based PNP ligands towards iodoalkanes. Dalton Trans 2024; 53:10120-10125. [PMID: 38817194 DOI: 10.1039/d4dt01022a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
Nickel monocarbonyl species with Ni(I) and Ni(0) have been synthesized and fully characterized by employing an acriPNP-Ph pincer ligand having a -C(Ph)2- bridge moiety to tether two aromatic rings. To see the effect of the bridge moiety, these complexes were structurally compared with the previously studied nickel complexes supported by PNP and acriPNP-Me ligands and methylation of the nickel carbonyl species was particularly investigated. Since a Ni(I)-CO species is known to be one of the key intermediates during the C-C coupling reaction to give an acetyl species, according to the paramagnetic mechanism of acetyl coenzyme A synthase (ACS), their reactivity toward MeI has been examined. Methylation of a nickel(I)-CO species reveals enhanced C-C coupling when both acriPNP-Me and acriPNP-Ph ligands were used. According to spin density analysis calculated by density functional theory, all Ni(I)-CO species reveal similar spin density at nickel and the carbon atom of CO. X-ray crystallographic data suggest that the corresponding selectivity may be related to the steric influence. For both (acriPNP-Ph)Ni-CO (2) and (acriPNP-Me)Ni-CO (2'), the nickel(I) site is sterically well protected, leading to selective interaction with a methyl radical to give a nickel acyl product. Steric influence was marginally observed when an anionic {(acriPNP-R)Ni-CO}- (R = Me or Ph) species reacted with MeI. The corresponding C-C coupled product was also observed from the methylation of nickel(0)-CO species.
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Affiliation(s)
- Sanha Park
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea.
| | - Mi Sook Seo
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea.
| | - Mingi Kim
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Kang Mun Lee
- Department of Chemistry, Kangwon National University, Chuncheon 24341, Republic of Korea
| | - Peter M Graham
- Department of Chemistry, Saint Joseph's University, 5600 City Avenue, Philadelphia, PA 19131, USA
| | - Yunho Lee
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea.
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3
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Thioester synthesis by a designed nickel enzyme models prebiotic energy conversion. Proc Natl Acad Sci U S A 2022; 119:e2123022119. [PMID: 35858422 PMCID: PMC9335327 DOI: 10.1073/pnas.2123022119] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
The formation of carbon-carbon bonds from prebiotic precursors such as carbon dioxide represents the foundation of all primordial life processes. In extant organisms, this reaction is carried out by the carbon monoxide dehydrogenase (CODH)/acetyl coenzyme A synthase (ACS) enzyme, which performs the cornerstone reaction in the ancient Wood-Ljungdahl metabolic pathway to synthesize the key biological metabolite, acetyl-CoA. Despite its significance, a fundamental understanding of this transformation is lacking, hampering efforts to harness analogous chemistry. To address these knowledge gaps, we have designed an artificial metalloenzyme within the azurin protein scaffold as a structural, functional, and mechanistic model of ACS. We demonstrate the intermediacy of the NiI species and requirement for ordered substrate binding in the bioorganometallic carbon-carbon bond-forming reaction from the one-carbon ACS substrates. The electronic and geometric structures of the nickel-acetyl intermediate have been characterized using time-resolved optical, electron paramagnetic resonance, and X-ray absorption spectroscopy in conjunction with quantum chemical calculations. Moreover, we demonstrate that the nickel-acetyl species is chemically competent for selective acyl transfer upon thiol addition to biosynthesize an activated thioester. Drawing an analogy to the native enzyme, a mechanism for thioester generation by this ACS model has been proposed. The fundamental insight into the enzymatic process provided by this rudimentary ACS model has implications for the evolution of primitive ACS-like proteins. Ultimately, these findings offer strategies for development of highly active catalysts for sustainable generation of liquid fuels from one-carbon substrates, with potential for broad applications across diverse fields ranging from energy storage to environmental remediation.
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4
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Kitadai N, Nakamura R, Yamamoto M, Okada S, Takahagi W, Nakano Y, Takahashi Y, Takai K, Oono Y. Thioester synthesis through geoelectrochemical CO 2 fixation on Ni sulfides. Commun Chem 2021; 4:37. [PMID: 36697522 PMCID: PMC9814748 DOI: 10.1038/s42004-021-00475-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 02/18/2021] [Indexed: 01/31/2023] Open
Abstract
A prevailing scenario of the origin of life postulates thioesters as key intermediates in protometabolism, but there is no experimental support for the prebiotic CO2 fixation routes to thioesters. Here we demonstrate that, under a simulated geoelectrochemical condition in primordial ocean hydrothermal systems (-0.6 to -1.0 V versus the standard hydrogen electrode), nickel sulfide (NiS) gradually reduces to Ni0, while accumulating surface-bound carbon monoxide (CO) due to CO2 electroreduction. The resultant partially reduced NiS realizes thioester (S-methyl thioacetate) formation from CO and methanethiol even at room temperature and neutral pH with the yield up to 35% based on CO. This thioester formation is not inhibited, or even improved, by 50:50 coprecipitation of NiS with FeS or CoS (the maximum yields; 27 or 56%, respectively). Such a simple thioester synthesis likely occurred in Hadean deep-sea vent environments, setting a stage for the autotrophic origin of life.
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Affiliation(s)
- Norio Kitadai
- grid.410588.00000 0001 2191 0132Super-cutting-edge Grand and Advanced Research (SUGAR) Program, Institute for Extra-cutting-edge Science and Technology Avant-garde Research (X-star), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan ,grid.32197.3e0000 0001 2179 2105Earth-Life Science Institute, Tokyo Institute of Technology, Meguroku, Tokyo Japan
| | - Ryuhei Nakamura
- grid.32197.3e0000 0001 2179 2105Earth-Life Science Institute, Tokyo Institute of Technology, Meguroku, Tokyo Japan ,grid.7597.c0000000094465255Biofunctional Catalyst Research Team, RIKEN Center for Sustainable Resource Science, Wako, Saitama Japan
| | - Masahiro Yamamoto
- grid.410588.00000 0001 2191 0132Super-cutting-edge Grand and Advanced Research (SUGAR) Program, Institute for Extra-cutting-edge Science and Technology Avant-garde Research (X-star), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan
| | - Satoshi Okada
- grid.410588.00000 0001 2191 0132Super-cutting-edge Grand and Advanced Research (SUGAR) Program, Institute for Extra-cutting-edge Science and Technology Avant-garde Research (X-star), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan
| | - Wataru Takahagi
- grid.410588.00000 0001 2191 0132Super-cutting-edge Grand and Advanced Research (SUGAR) Program, Institute for Extra-cutting-edge Science and Technology Avant-garde Research (X-star), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan ,grid.26999.3d0000 0001 2151 536XDepartment of Chemistry, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo Japan
| | - Yuko Nakano
- grid.32197.3e0000 0001 2179 2105Earth-Life Science Institute, Tokyo Institute of Technology, Meguroku, Tokyo Japan
| | - Yoshio Takahashi
- grid.26999.3d0000 0001 2151 536XDepartment of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo Japan
| | - Ken Takai
- grid.410588.00000 0001 2191 0132Super-cutting-edge Grand and Advanced Research (SUGAR) Program, Institute for Extra-cutting-edge Science and Technology Avant-garde Research (X-star), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan
| | - Yoshi Oono
- grid.35403.310000 0004 1936 9991Department of Physics, University of Illinois at Urbana-Champaign, Urbana, IL USA
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5
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Zimmermann P, Hoof S, Braun-Cula B, Herwig C, Limberg C. A Biomimetic Nickel Complex with a Reduced CO2
Ligand Generated by Formate Deprotonation and Its Behaviour towards CO2. Angew Chem Int Ed Engl 2018; 57:7230-7233. [DOI: 10.1002/anie.201802655] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Indexed: 01/28/2023]
Affiliation(s)
- Philipp Zimmermann
- Humboldt-Universität zu Berlin; Institut für Chemie; Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Santina Hoof
- Humboldt-Universität zu Berlin; Institut für Chemie; Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Beatrice Braun-Cula
- Humboldt-Universität zu Berlin; Institut für Chemie; Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Christian Herwig
- Humboldt-Universität zu Berlin; Institut für Chemie; Brook-Taylor-Straße 2 12489 Berlin Germany
| | - Christian Limberg
- Humboldt-Universität zu Berlin; Institut für Chemie; Brook-Taylor-Straße 2 12489 Berlin Germany
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6
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Zimmermann P, Hoof S, Braun-Cula B, Herwig C, Limberg C. Ein biomimetischer Nickelkomplex mit einem reduzierten, durch Formiatdeprotonierung erzeugten CO2
-Liganden und sein Verhalten gegenüber CO2. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802655] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Philipp Zimmermann
- Humboldt-Universität zu Berlin; Institut für Chemie; Brook-Taylor-Straße 2 12489 Berlin Deutschland
| | - Santina Hoof
- Humboldt-Universität zu Berlin; Institut für Chemie; Brook-Taylor-Straße 2 12489 Berlin Deutschland
| | - Beatrice Braun-Cula
- Humboldt-Universität zu Berlin; Institut für Chemie; Brook-Taylor-Straße 2 12489 Berlin Deutschland
| | - Christian Herwig
- Humboldt-Universität zu Berlin; Institut für Chemie; Brook-Taylor-Straße 2 12489 Berlin Deutschland
| | - Christian Limberg
- Humboldt-Universität zu Berlin; Institut für Chemie; Brook-Taylor-Straße 2 12489 Berlin Deutschland
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7
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Zhang A, Raje S, Liu J, Li X, Angamuthu R, Tung CH, Wang W. Nickel-Mediated Stepwise Transformation of CO to Acetaldehyde and Ethanol. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00472] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ailing Zhang
- School
of Chemistry and Chemical Engineering, Shandong University, 27 South Shanda Road, Jinan 250100, China
| | - Sakthi Raje
- Laboratory
of Inorganic Synthesis and Bioinspired Catalysis (LISBIC), Department
of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Jianguo Liu
- School
of Chemistry and Chemical Engineering, Shandong University, 27 South Shanda Road, Jinan 250100, China
| | - Xiaoyan Li
- School
of Chemistry and Chemical Engineering, Shandong University, 27 South Shanda Road, Jinan 250100, China
| | - Raja Angamuthu
- Laboratory
of Inorganic Synthesis and Bioinspired Catalysis (LISBIC), Department
of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Chen-Ho Tung
- School
of Chemistry and Chemical Engineering, Shandong University, 27 South Shanda Road, Jinan 250100, China
| | - Wenguang Wang
- School
of Chemistry and Chemical Engineering, Shandong University, 27 South Shanda Road, Jinan 250100, China
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8
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Manesis AC, O'Connor MJ, Schneider CR, Shafaat HS. Multielectron Chemistry within a Model Nickel Metalloprotein: Mechanistic Implications for Acetyl-CoA Synthase. J Am Chem Soc 2017; 139:10328-10338. [PMID: 28675928 DOI: 10.1021/jacs.7b03892] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The acetyl coenzyme A synthase (ACS) enzyme plays a central role in the metabolism of anaerobic bacteria and archaea, catalyzing the reversible synthesis of acetyl-CoA from CO and a methyl group through a series of nickel-based organometallic intermediates. Owing to the extreme complexity of the native enzyme systems, the mechanism by which this catalysis occurs remains poorly understood. In this work, we have developed a protein-based model for the NiP center of acetyl coenzyme A synthase using a nickel-substituted azurin protein (NiAz). NiAz is the first model nickel protein system capable of accessing three (NiI/NiII/NiIII) distinct oxidation states within a physiological potential range in aqueous solution, a critical feature for achieving organometallic ACS activity, and binds CO and -CH3 groups with biologically relevant affinity. Characterization of the NiI-CO species through spectroscopic and computational techniques reveals fundamentally similar features between the model NiAz system and the native ACS enzyme, highlighting the potential for related reactivity in this model protein. This work provides insight into the enzymatic process, with implications toward engineering biological catalysts for organometallic processes.
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Affiliation(s)
- Anastasia C Manesis
- The Ohio State University , 100 West 18th Avenue, Newman & Wolfrom Laboratory of Chemistry, Columbus, Ohio 43210, United States
| | - Matthew J O'Connor
- The Ohio State University , 100 West 18th Avenue, Newman & Wolfrom Laboratory of Chemistry, Columbus, Ohio 43210, United States
| | - Camille R Schneider
- The Ohio State University , 100 West 18th Avenue, Newman & Wolfrom Laboratory of Chemistry, Columbus, Ohio 43210, United States
| | - Hannah S Shafaat
- The Ohio State University , 100 West 18th Avenue, Newman & Wolfrom Laboratory of Chemistry, Columbus, Ohio 43210, United States
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9
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Holze P, Corona T, Frank N, Braun-Cula B, Herwig C, Company A, Limberg C. Activation of Dioxygen at a Lewis Acidic Nickel(II) Complex: Characterization of a Metastable Organoperoxide Complex. Angew Chem Int Ed Engl 2017; 56:2307-2311. [PMID: 28111896 DOI: 10.1002/anie.201609526] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 10/31/2016] [Indexed: 11/05/2022]
Abstract
In metal-mediated O2 activation, nickel(II) compounds hardly play a role, but recently it has been shown that enzymes can use nickel(II) for O2 activation. Now a low-coordinate Lewis acidic nickel(II) complex has been synthesized that reacts with O2 to give a nickel(II) organoperoxide, as proposed for the enzymatic system. Its formation was studied further by UV/Vis absorption spectroscopy, leading to the observation of a short-lived intermediate that proved to be reactive in both oxygen atom transfer and hydrogen abstraction reactions, while the peroxide efficiently transfers O atoms. Both for the enzyme and for the functional model, the key to O2 activation is proposed to represent a concomitant electron shift from the substrate/co-ligand.
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Affiliation(s)
- Patrick Holze
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Teresa Corona
- Grup de Química Bioinspirada, Supramolecular i Catàlisi (QBIS-CAT), Institut de Química Computacional i Catàlisi (IQCC), Departament de Química, Universitat de Girona, 17003, Girona, Catalonia, Spain
| | - Nicolas Frank
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Beatrice Braun-Cula
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Christian Herwig
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Anna Company
- Grup de Química Bioinspirada, Supramolecular i Catàlisi (QBIS-CAT), Institut de Química Computacional i Catàlisi (IQCC), Departament de Química, Universitat de Girona, 17003, Girona, Catalonia, Spain
| | - Christian Limberg
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
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10
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Zimmermann P, Limberg C. Activation of Small Molecules at Nickel(I) Moieties. J Am Chem Soc 2017; 139:4233-4242. [DOI: 10.1021/jacs.6b12434] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Philipp Zimmermann
- 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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11
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Holze P, Corona T, Frank N, Braun-Cula B, Herwig C, Company A, Limberg C. Activation of Dioxygen at a Lewis Acidic Nickel(II) Complex: Characterization of a Metastable Organoperoxide Complex. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201609526] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Patrick Holze
- Humboldt-Universität zu Berlin; Institut für Chemie; Brook-Taylor-Strasse 2 12489 Berlin Germany
| | - Teresa Corona
- Grup de Química Bioinspirada; Supramolecular i Catàlisi (QBIS-CAT); Institut de Química Computacional i Catàlisi (IQCC); Departament de Química; Universitat de Girona; 17003 Girona Catalonia Spain
| | - Nicolas Frank
- Humboldt-Universität zu Berlin; Institut für Chemie; Brook-Taylor-Strasse 2 12489 Berlin Germany
| | - Beatrice Braun-Cula
- Humboldt-Universität zu Berlin; Institut für Chemie; Brook-Taylor-Strasse 2 12489 Berlin Germany
| | - Christian Herwig
- Humboldt-Universität zu Berlin; Institut für Chemie; Brook-Taylor-Strasse 2 12489 Berlin Germany
| | - Anna Company
- Grup de Química Bioinspirada; Supramolecular i Catàlisi (QBIS-CAT); Institut de Química Computacional i Catàlisi (IQCC); Departament de Química; Universitat de Girona; 17003 Girona Catalonia Spain
| | - Christian Limberg
- Humboldt-Universität zu Berlin; Institut für Chemie; Brook-Taylor-Strasse 2 12489 Berlin Germany
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12
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Lin CY, Power PP. Complexes of Ni(i): a “rare” oxidation state of growing importance. Chem Soc Rev 2017; 46:5347-5399. [DOI: 10.1039/c7cs00216e] [Citation(s) in RCA: 125] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The synthesis and diverse structures, reactivity (small molecule activation and catalysis) and magnetic properties of Ni(i) complexes are summarized.
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Affiliation(s)
- Chun-Yi Lin
- Department of Chemistry
- University of California
- Davis
- USA
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13
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Oh S, Kim S, Lee D, Gwak J, Lee Y. Alkoxide Migration at a Nickel(II) Center Induced by a π-Acidic Ligand: Migratory Insertion versus Metal–Ligand Cooperation. Inorg Chem 2016; 55:12863-12871. [DOI: 10.1021/acs.inorgchem.6b02226] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Seohee Oh
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Seji Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Dayoung Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Jinseong Gwak
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Yunho Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
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14
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Warner DS, Limberg C, Oldenburg FJ, Braun B. Reaction of a polydentate cysteine-based ligand and its nickel(ii) complex with electrophilic and nucleophilic methyl-transfer reagents - from S-methylation to acetyl coenzyme A synthase reactivity. Dalton Trans 2015; 44:18378-85. [PMID: 26390049 DOI: 10.1039/c5dt02828k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The L-cysteine derived N2S2 ligand precursor H2L and its nickel(ii) complex L2Ni2 were investigated with respect to their behaviour in contact with electrophilic and nucleophilic methylation reagents (H2L = (N,N'-dimethyl-(2R,5R)-bis-(sulfanylmethyl)-piperazine). Treatment of deprotonated L(2-) with MeI led to the selective methylation of the thiolate groups thus generating a novel potential ligand, Me2L, which is neutral and contains two thioether donors. The coordinating properties of Me2L were demonstrated by the synthesis of a first nickel(ii) complex: reaction with NiBr2 led to a mononuclear complex 2 where all donor atoms coordinate to the nickel ion, which completes its octahedral coordination sphere by the two bromide ligands. If, however, the complex [LNi]2 (1) is treated with MeI only one thiolate function per ligand moiety is methylated, while the other one remains a thiolate. This leads to [MeLNi](+) complex metal fragments, which trimerize including a μ3-bridging iodide ion to give the compound 3 that was tested with regards to ACS reactivity. While it behaved inert towards CO, attempts to replace the bridging iodide ligand by methyl units in reactions with nucleophilic methylation reagents led to a product, which could not be identified but reacted with CO. Work-up showed that this protocol had converted the thiolate function of MeL(-) into a thioester function, which corresponds to an ACS-like reactivity.
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Affiliation(s)
- D S Warner
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-St. 2, 12489 Berlin, Germany.
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15
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Liu XF. Condensation reactions of the mononuclear nickel(II) complexes [RN(PPh 2 ) 2 ]NiCl 2 with 1,2-ethanedithiol or 1,3-propanedithiol. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.05.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Poulten RC, López I, Llobet A, Mahon MF, Whittlesey MK. Stereoelectronic Effects in C–H Bond Oxidation Reactions of Ni(I) N-Heterocyclic Carbene Complexes. Inorg Chem 2014; 53:7160-9. [DOI: 10.1021/ic500213h] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Rebecca C. Poulten
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2
7AY, U.K
| | - Isidoro López
- Institute of Chemical Research of Catalonia (ICIQ), Avinguda Paisos Catalans 16, E-43007 Tarragona, Spain
| | - Antoni Llobet
- Institute of Chemical Research of Catalonia (ICIQ), Avinguda Paisos Catalans 16, E-43007 Tarragona, Spain
| | - Mary F. Mahon
- Department
of Chemistry, University of Bath, Claverton Down, Bath BA2
7AY, U.K
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17
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Meier G, Steck V, Braun B, Eißler A, Herrmann R, Ahrens M, Laubenstein R, Braun T. Synthesis and Structures of Fluorinated (β‐Diketiminato)rhodium Complexes: Si–H Activation of Silanes at a Carbonyl Complex. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402087] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Gregor Meier
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
| | - Viktoria Steck
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
| | - Beatrice Braun
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
| | - Anna Eißler
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
| | - Roy Herrmann
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
| | - Mike Ahrens
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
| | - Reik Laubenstein
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
| | - Thomas Braun
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
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Can M, Armstrong F, Ragsdale SW. Structure, function, and mechanism of the nickel metalloenzymes, CO dehydrogenase, and acetyl-CoA synthase. Chem Rev 2014; 114:4149-74. [PMID: 24521136 PMCID: PMC4002135 DOI: 10.1021/cr400461p] [Citation(s) in RCA: 373] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Indexed: 12/19/2022]
Affiliation(s)
- Mehmet Can
- Department
of Biological Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Fraser
A. Armstrong
- Inorganic
Chemistry Laboratory, University of Oxford Oxford, OX1 3QR, United Kingdom
| | - Stephen W. Ragsdale
- Department
of Biological Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
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19
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Holze P, Horn B, Limberg C, Matlachowski C, Mebs S. Aktivierung von Schwefelhexafluorid an hoch reduzierten niedrig koordinierten Nickel-Distickstoff-Komplexen. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201308270] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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20
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Holze P, Horn B, Limberg C, Matlachowski C, Mebs S. The activation of sulfur hexafluoride at highly reduced low-coordinate nickel dinitrogen complexes. Angew Chem Int Ed Engl 2014; 53:2750-3. [PMID: 24481669 DOI: 10.1002/anie.201308270] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Indexed: 11/07/2022]
Abstract
The greenhouse gas sulfur hexafluoride is the common standard example in the literature of a very inert inorganic small molecule that is even stable against O2 in an electric discharge. However, a reduced β-diketiminate nickel species proved to be capable of converting SF6 into sulfide and fluoride compounds at ambient standard conditions. The fluoride product complex features an unprecedented [NiF](+) unit, where the Ni atom is only three-coordinate, while the sulfide product exhibits a rare almost linear [Ni(μ-S)Ni](2+) moiety. The reaction was monitored applying (1)H NMR, IR and EPR spectroscopic techniques resulting in the identification of an intermediate nickel complex that gave insight into the mechanism of the eight-electron reduction of SF6.
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Affiliation(s)
- Patrick Holze
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Strasse 2, 12489 Berlin (Germany) http://www.chemie.hu-berlin.de/aglimberg/
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21
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Yoo C, Oh S, Kim J, Lee Y. Transmethylation of a four-coordinate nickel(i) monocarbonyl species with methyl iodide. Chem Sci 2014. [DOI: 10.1039/c4sc01089b] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The reaction of a nickel(i) carbonyl species with CH3I revealed the formation of (PNP)NiCOCH3 which differs from its zerovalent congener.
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Affiliation(s)
- Changho Yoo
- Department of Chemistry
- Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon 305-701, Republic of Korea
| | - Seohee Oh
- Department of Chemistry
- Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon 305-701, Republic of Korea
| | - Jin Kim
- Department of Chemistry
- Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon 305-701, Republic of Korea
| | - Yunho Lee
- Department of Chemistry
- Korea Advanced Institute of Science and Technology (KAIST)
- Daejeon 305-701, Republic of Korea
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