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Schaupp S, Arriaza-Gallardo FJ, Paczia N, Ataka K, Shima S. Acyl and CO Ligands in the [Fe]-Hydrogenase Cofactor Scramble upon Photolysis. Angew Chem Int Ed Engl 2024; 63:e202316478. [PMID: 38100251 DOI: 10.1002/anie.202316478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/15/2023] [Accepted: 12/15/2023] [Indexed: 12/17/2023]
Abstract
[Fe]-hydrogenase harbors the iron-guanylylpyridinol (FeGP) cofactor, in which the Fe(II) complex contains acyl-carbon, pyridinol-nitrogen, cysteine-thiolate and two CO as ligands. Irradiation with UV-A/blue light decomposes the FeGP cofactor to a 6-carboxymethyl-4-guanylyl-2-pyridone (GP) and other components. Previous in vitro biosynthesis experiments indicated that the acyl- and CO-ligands in the FeGP cofactor can scramble, but whether scrambling occurred during biosynthesis or photolysis was unclear. Here, we demonstrate that the [18 O1 -carboxy]-group of GP is incorporated into the FeGP cofactor by in vitro biosynthesis. MS/MS analysis of the 18 O-labeled FeGP cofactor revealed that the produced [18 O1 ]-acyl group is not exchanged with a CO ligand of the cofactor, indicating that the acyl and CO ligands are scrambled during photolysis rather than biosynthesis, which ruled out any biosynthesis mechanisms allowing acyl/CO ligands scrambling. Time-resolved infrared spectroscopy indicated that an acyl-Fe(CO)3 intermediate is formed during photolysis, in which scrambling of the CO and acyl ligands can occur. This finding also suggests that the light-excited FeGP cofactor has a higher affinity for external CO. These results contribute to our understanding of the biosynthesis and photosensitive properties of this unique H2 -activating natural complex.
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Affiliation(s)
- Sebastian Schaupp
- Max Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Straße 10, 35043, Marburg, Germany
| | | | - Nicole Paczia
- Max Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Straße 10, 35043, Marburg, Germany
| | - Kenichi Ataka
- Department of Physics, Freie Universität Berlin, Arnimallee 14, 14195 Berlin (Germany)
| | - Seigo Shima
- Max Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Straße 10, 35043, Marburg, Germany
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2
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Wang C, Lai Z, Huang G, Pan H. Current State of [Fe]‐Hydrogenase and Its Biomimetic Models. Chemistry 2022; 28:e202201499. [DOI: 10.1002/chem.202201499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Chao Wang
- Chemistry and Biomedicine Innovation Center (ChemBIC) State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical Engineering Nanjing University 163 Xianlin Avenue 210023 Nanjing P. R. China
| | - Zhenli Lai
- Key Laboratory of Development and Application of Rural Renewable Energy Biogas Institute of Ministry of Agriculture and Rural Affairs Section 4–13, Renmin South Road 610041 Chengdu P. R. China
| | - Gangfeng Huang
- Key Laboratory of Development and Application of Rural Renewable Energy Biogas Institute of Ministry of Agriculture and Rural Affairs Section 4–13, Renmin South Road 610041 Chengdu P. R. China
| | - Hui‐Jie Pan
- Chemistry and Biomedicine Innovation Center (ChemBIC) State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical Engineering Nanjing University 163 Xianlin Avenue 210023 Nanjing P. R. China
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3
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Schaupp S, Arriaza-Gallardo FJ, Pan HJ, Kahnt J, Angelidou G, Paczia N, Costa K, Hu X, Shima S. In Vitro Biosynthesis of the [Fe]-Hydrogenase Cofactor Verifies the Proposed Biosynthetic Precursors. Angew Chem Int Ed Engl 2022; 61:e202200994. [PMID: 35286742 PMCID: PMC9314073 DOI: 10.1002/anie.202200994] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Indexed: 02/06/2023]
Abstract
In the FeGP cofactor of [Fe]‐hydrogenase, low‐spin FeII is in complex with two CO ligands and a pyridinol derivative; the latter ligates the iron with a 6‐acylmethyl substituent and the pyridinol nitrogen. A guanylylpyridinol derivative, 6‐carboxymethyl‐3,5‐dimethyl‐4‐guanylyl‐2‐pyridinol (3), is produced by the decomposition of the FeGP cofactor under irradiation with UV‐A/blue light and is also postulated to be a precursor of FeGP cofactor biosynthesis. HcgC and HcgB catalyze consecutive biosynthesis steps leading to 3. Here, we report an in vitro biosynthesis assay of the FeGP cofactor using the cell extract of the ΔhcgBΔhcgC strain of Methanococcus maripaludis, which does not biosynthesize 3. We chemically synthesized pyridinol precursors 1 and 2, and detected the production of the FeGP cofactor from 1, 2 and 3. These results indicated that 1, 2 and 3 are the precursors of the FeGP cofactor, and the carboxy group of 3 is converted to the acyl ligand.
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Affiliation(s)
- Sebastian Schaupp
- Max Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Straße 10, 35043, Marburg, Germany
| | | | - Hui-Jie Pan
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL) ISIC-LSCI, BCH 3305, 1015, Lausanne, Switzerland
| | - Jörg Kahnt
- Max Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Straße 10, 35043, Marburg, Germany
| | - Georgia Angelidou
- Max Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Straße 10, 35043, Marburg, Germany
| | - Nicole Paczia
- Max Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Straße 10, 35043, Marburg, Germany
| | - Kyle Costa
- Department of Plant and Microbial Biology, University of Minnesota, Twin Cities, St. Paul, MN, USA
| | - Xile Hu
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL) ISIC-LSCI, BCH 3305, 1015, Lausanne, Switzerland
| | - Seigo Shima
- Max Planck Institute for Terrestrial Microbiology, Karl-von-Frisch-Straße 10, 35043, Marburg, Germany
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4
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Schaupp S, Arriaza‐Gallardo FJ, Pan H, Kahnt J, Angelidou G, Paczia N, Costa K, Hu X, Shima S. In Vitro Biosynthesis of the [Fe]‐Hydrogenase Cofactor Verifies the Proposed Biosynthetic Precursors. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sebastian Schaupp
- Max Planck Institute for Terrestrial Microbiology Karl-von-Frisch-Straße 10 35043 Marburg Germany
| | | | - Hui‐jie Pan
- Laboratory of Inorganic Synthesis and Catalysis Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne (EPFL) ISIC-LSCI, BCH 3305 1015 Lausanne Switzerland
| | - Jörg Kahnt
- Max Planck Institute for Terrestrial Microbiology Karl-von-Frisch-Straße 10 35043 Marburg Germany
| | - Georgia Angelidou
- Max Planck Institute for Terrestrial Microbiology Karl-von-Frisch-Straße 10 35043 Marburg Germany
| | - Nicole Paczia
- Max Planck Institute for Terrestrial Microbiology Karl-von-Frisch-Straße 10 35043 Marburg Germany
| | - Kyle Costa
- Department of Plant and Microbial Biology University of Minnesota Twin Cities St. Paul, MN USA
| | - Xile Hu
- Laboratory of Inorganic Synthesis and Catalysis Institute of Chemical Sciences and Engineering Ecole Polytechnique Fédérale de Lausanne (EPFL) ISIC-LSCI, BCH 3305 1015 Lausanne Switzerland
| | - Seigo Shima
- Max Planck Institute for Terrestrial Microbiology Karl-von-Frisch-Straße 10 35043 Marburg Germany
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5
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Song LC, Zhang ZQ, Liu BB, Wang YP, Chen S. Biomimetic models of [Fe]-hydrogenase featuring a 2-acylphenylthiomethyl-6-R-pyridine (R = H or OMe) ligand. Chem Commun (Camb) 2022; 58:12168-12171. [DOI: 10.1039/d2cc04523k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new flexible pyridine ligand (FPL)-based method is developed, by which two novel biomimetic models of [Fe]-H2ase are prepared and their enzyme-like H2/D2 activation functions are studied.
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Affiliation(s)
- Li-Cheng Song
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
| | - Zhen-Qing Zhang
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
| | - Bei-Bei Liu
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
| | - Yin-Peng Wang
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
| | - Shuai Chen
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, China
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Crystal Structures of [Fe]-Hydrogenase from Methanolacinia paynteri Suggest a Path of the FeGP-Cofactor Incorporation Process. INORGANICS 2020. [DOI: 10.3390/inorganics8090050] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
[Fe]-hydrogenase (Hmd) catalyzes the reversible heterolytic cleavage of H2, and hydride transfer to methenyl-tetrahydromethanopterin (methenyl-H4MPT+). The iron-guanylylpyridinol (FeGP) cofactor, the prosthetic group of Hmd, can be extracted from the holoenzyme and inserted back into the protein. Here, we report the crystal structure of an asymmetric homodimer of Hmd from Methanolacinia paynteri (pHmd), which was composed of one monomer in the open conformation with the FeGP cofactor (holo-form) and a second monomer in the closed conformation without the cofactor (apo-form). In addition, we report the symmetric pHmd-homodimer structure in complex with guanosine monophosphate (GMP) or guanylylpyridinol (GP), in which each ligand was bound to the protein, where the GMP moiety of the FeGP-cofactor is bound in the holo-form. Binding of GMP and GP modified the local protein structure but did not induce the open conformation. The amino-group of the Lys150 appears to interact with the 2-hydroxy group of pyridinol ring in the pHmd–GP complex, which is not the case in the structure of the pHmd–FeGP complex. Lys150Ala mutation decreased the reconstitution rate of the active enzyme with the FeGP cofactor at the physiological pH. These results suggest that Lys150 might be involved in the FeGP-cofactor incorporation into the Hmd protein in vivo.
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Kerns SA, Rose MJ. Scaffold-Based Functional Models of [Fe]-Hydrogenase (Hmd): Building the Bridge between Biological Structure and Molecular Function. Acc Chem Res 2020; 53:1637-1647. [PMID: 32786339 DOI: 10.1021/acs.accounts.0c00315] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The well-known dinuclear [FeFe] and [NiFe] hydrogenase enzymes are redox-based proton reduction and H2 oxidation catalysts. In comparison, the structural and functional aspects of the mononuclear nonredox hydrogenase, known as [Fe]-hydrogenase or Hmd, have been less explored because of the relatively recent crystallographic elucidation of the enzyme active site. Additionally, the synthetic challenges posed by the highly substituted and asymmetric coordination environment of the iron guanylylpyridinol (FeGP) cofactor have hampered functional biomimetic modeling studies to a large extent. The active site contains an octahedral low-spin Fe(II) center with the following coordination motifs: a bidentate acyl-pyridone moiety (C,N) and cysteinyl-S in a facial arrangement; two cis carbonyl ligands; and a H2O/H2 binding site. In [Fe]-hydrogenase, heterolytic H2 activation putatively by the pendant pyridone/pyridonate-O base serving as a proton acceptor. Following H2 cleavage, an intermediate Fe-H species is thought to stereoselectively transfer a hydride to the substrate methenyl-H4MPT+, thus forming methylene-H4MPT. In the past decade, chemists, inspired by the elegant organometallic chemistry inherent to the FeGP cofactor, have synthesized a number of faithful structural models. However, functional systems are still relatively limited and often rely on abiological ligands or metal centers that obfuscate a direct correlation to nature's design.Our group has developed a bioinspired suite of synthetic analogues of Hmd to better understand the effects of structure on the stability and functionality of the Hmd active site, with a special emphasis on using a scaffold-based ligand design. This systematic approach has contributed to a deeper understanding of the unique ligand array of [Fe]-hydrogenase in nature and has ultimately resulted in the first functional synthetic models without the aid of abiological ligands. This Account reviews the reactivity of the functional anthracene-scaffolded synthetic models developed by our group in the context of current mechanistic understanding drawn from both protein crystallography and computational studies. Furthermore, we introduce a novel thermodynamic framework to place the reactivity of our model systems in context and provide an outlook on the future study of [Fe]-hydrogenase synthetic models through both a structural and functional lens.
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Affiliation(s)
- Spencer A. Kerns
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Michael J. Rose
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
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Song L, Liu B, Xu K. Synthetic and Structural Studies on a New Type of [Fe]‐Hydrogenase Mimics Each Containing One Hantzsch Ester Moiety. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000523] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Li‐Cheng Song
- Department of Chemistry State Key Laboratory of Elemento‐Organic Chemistry Nankai University 300071 Tianjin China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) 300072 Tianjin China
| | - Bei‐Bei Liu
- Department of Chemistry State Key Laboratory of Elemento‐Organic Chemistry Nankai University 300071 Tianjin China
| | - Kai‐Kai Xu
- Department of Chemistry State Key Laboratory of Elemento‐Organic Chemistry Nankai University 300071 Tianjin China
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Pan HJ, Hu X. Biomimetic Hydrogenation Catalyzed by a Manganese Model of [Fe]-Hydrogenase. Angew Chem Int Ed Engl 2020; 59:4942-4946. [PMID: 31820844 DOI: 10.1002/anie.201914377] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Indexed: 12/16/2022]
Abstract
[Fe]-hydrogenase is an efficient biological hydrogenation catalyst. Despite intense research, Fe complexes mimicking the active site of [Fe]-hydrogenase have not achieved turnovers in hydrogenation reactions. Herein, we describe the design and development of a manganese(I) mimic of [Fe]-hydrogenase. This complex exhibits the highest activity and broadest scope in catalytic hydrogenation among known mimics. Thanks to its biomimetic nature, the complex exhibits unique activity in the hydrogenation of compounds analogous to methenyl-H4 MPT+ , the natural substrate of [Fe]-hydrogenase. This activity enables asymmetric relay hydrogenation of benzoxazinones and benzoxazines, involving the hydrogenation of a chiral hydride transfer agent using our catalyst coupled to Lewis acid-catalyzed hydride transfer from this agent to the substrates.
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Affiliation(s)
- Hui-Jie Pan
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), ISIC-LSCI, BCH 3305, Lausanne, 1015, Switzerland
| | - Xile Hu
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), ISIC-LSCI, BCH 3305, Lausanne, 1015, Switzerland
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10
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Methanogenesis involves direct hydride transfer from H2 to an organic substrate. Nat Rev Chem 2020; 4:213-221. [PMID: 37128042 DOI: 10.1038/s41570-020-0167-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/27/2020] [Indexed: 01/02/2023]
Abstract
Certain anaerobic microorganisms evolved a mechanism to use H2 as a reductant in their energy metabolisms. For these purposes, the microorganisms developed H2-activating enzymes, which are aspirational catalysts in a sustainable hydrogen economy. In the case of the hydrogenotrophic pathway performed by methanogenic archaea, 8e- are extracted from 4H2 and used as reducing equivalents to convert CO2 into CH4. Under standard cultivation conditions, these archaea express [NiFe]-hydrogenases, which are Ni-dependent and Fe-dependent enzymes and heterolytically cleave H2 into 2H+ and 2e-, the latter being supplied into the central metabolism. Under Ni-limiting conditions, F420-reducing [NiFe]-hydrogenases are downregulated and their functions are predominantly taken over by an upregulated [Fe]-hydrogenase. Unique in biology, this Fe-dependent hydrogenase cleaves H2 and directly transfers H- to an imidazolium-containing substrate. [Fe]-hydrogenase activates H2 at an Fe cofactor ligated by two CO molecules, an acyl group, a pyridinol N atom and a cysteine thiolate as the central constituent. This Fe centre has inspired chemists to not only design synthetic mimics to catalytically cleave H2 in solution but also for incorporation into apo-[Fe]-hydrogenase to give semi-synthetic proteins. This Perspective describes the enzymes involved in hydrogenotrophic methanogenesis, with a focus on those performing the reduction steps. Of these, we describe [Fe]-hydrogenases in detail and cover recent progress in their synthetic modelling.
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Xie ZL, Chai W, Kerns SA, Henkelman GA, Rose MJ. Bioinspired CNP Iron(II) Pincers Relevant to [Fe]-Hydrogenase (Hmd): Effect of Dicarbonyl versus Monocarbonyl Motifs in H 2 Activation and Transfer Hydrogenation. Inorg Chem 2020; 59:2548-2561. [DOI: 10.1021/acs.inorgchem.9b03476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhu-Lin Xie
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Wenrui Chai
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Spencer A. Kerns
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Graeme A. Henkelman
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Michael J. Rose
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
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12
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Pan H, Hu X. Biomimetic Hydrogenation Catalyzed by a Manganese Model of [Fe]‐Hydrogenase. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914377] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Hui‐Jie Pan
- Laboratory of Inorganic Synthesis and CatalysisInstitute of Chemical Sciences and EngineeringÉcole Polytechnique Fédérale de Lausanne (EPFL), ISIC-LSCI BCH 3305 Lausanne 1015 Switzerland
| | - Xile Hu
- Laboratory of Inorganic Synthesis and CatalysisInstitute of Chemical Sciences and EngineeringÉcole Polytechnique Fédérale de Lausanne (EPFL), ISIC-LSCI BCH 3305 Lausanne 1015 Switzerland
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13
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Zhang HT, Zhang MT. The Application of Pincer Ligand in Catalytic Water Splitting. TOP ORGANOMETAL CHEM 2020. [DOI: 10.1007/3418_2020_71] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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14
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Song LC, Zhu L, Liu BB. A Biomimetic Model for the Active Site of [Fe]-H 2ase Featuring a 2-Methoxy-3,5-dimethyl-4-phosphato-6-acylmethylpyridine Ligand. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00635] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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, College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, People’s Republic of China
| | - Liang Zhu
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
| | - Bei-Bei Liu
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
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Cho YI, Durgaprasad G, Rose MJ. CNS and CNP Iron(II) Mono-Iron Hydrogenase (Hmd) Mimics: Role of Deprotonated Methylene(acyl) and the trans-Acyl Site in H 2 Heterolysis. Inorg Chem 2019; 58:12689-12699. [PMID: 31497945 DOI: 10.1021/acs.inorgchem.9b01530] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report syntheses and H2 activation involving model complexes of mono-iron hydrogenase (Hmd) derived from acyl-containing pincer ligand precursors bearing thioether (CNSPre) or phosphine (CNPPre) donor sets. Both complexes feature pseudo-octahedral iron(II) dicarbonyl units. While the CNS pincer adopts the expected mer-CNS (pincer) geometry, the CNP ligand unexpectedly adopts the fac-CNP coordination geometry. Both complexes exhibit surprisingly acidic methylene C-H bond (reversibly de/protonated by a bulky phenolate), which affords a putative dearomatized pyridinate-bound intermediate. Such base treatment of Fe-CNS also results in deligation of the thioether sulfur donor, generating an open coordination site trans from the acyl unit. In contrast, Fe-CNP maintains a CO ligand trans from the acyl site both in the parent and dearomatized complexes (the -PPh2 donor is cis to acyl). The dearomatized mer-Fe-CNS was competent for H2 activation (5 atm D2(g) plus phenolate as base), which is attributed to both the basic site on the ligand framework and the open coordination site trans to the acyl donor. In contrast, the dearomatized fac-Fe-CNP was not competent for H2 activation, which is ascribed to the blocked coordination site trans from acyl (occupied by CO ligand). These results highlight the importance of both (i) the open coordination site trans to the organometallic acyl donor and (ii) a pendant base in the enzyme active site.
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Affiliation(s)
- Yae In Cho
- Department of Chemistry , The University of Texas at Austin , Austin , Texas 78712 , United States
| | - Gummadi Durgaprasad
- Department of Chemistry , The University of Texas at Austin , Austin , Texas 78712 , United States
| | - Michael J Rose
- Department of Chemistry , The University of Texas at Austin , Austin , Texas 78712 , United States
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16
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17
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Barik CK, Ganguly R, Li Y, Leong WK. Very strong trans effect in ruthenacyclic carbamoyl complexes leads to ligand redistribution in phosphine derivatives. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.02.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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18
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Li JP, Luo SP, Zhan SZ, Shi YC. Synthesis, characterization and electrocatalytic H2 production of phosphine-substituted CpFe complexes. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.06.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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19
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Rong B, Zhong W, Gu E, Long L, Song L, Liu X. Probing the electron transfer mechanism of the half-sandwich iron(II)-carbonyl complexes and their catalysis on proton reduction. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.06.144] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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20
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Xie ZL, Pennington DL, Boucher DG, Lo J, Rose MJ. Effects of Thiolate Ligation in Monoiron Hydrogenase (Hmd): Stability of the {Fe(CO) 2} 2+ Core with NNS Ligands. Inorg Chem 2018; 57:10028-10039. [PMID: 30070112 DOI: 10.1021/acs.inorgchem.8b01185] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this work, we report the effects of NNS-thiolate ligands and nuclearity (monomer, dimer) on the stability of iron complexes related to the active site of monoiron hydrogenase (Hmd). A thermally stable iron(II) dicarbonyl motif is the core feature of the active site, but the coordination features that lead to this property have not been independently evaluated for their contributions to the {Fe(CO)2}2+ stability. As such, non-bulky and bulky benzothiazoline ligands (thiolate precursors) were synthesized and their iron(II) complexes characterized. The use of non-bulky thiolate ligands and low-temperature crystallizations result in isolation of the dimeric species [(NNS)2Fe2(CO)2(I)2] (1), [(NPhNS)2Fe2(CO)2(I)2] (2), and [(MeNNS)2Fe2(CO)2(I)2] (3), which exhibit dimerization via thiolato (μ2-S)2 bridges. In one particular case (unsubstituted NNS ligand), the pathway of decarbonylation and oxidation from 1 was crystallographically elucidated, via isolation of the half-bis-ligated monocarbonyl dimer [(NNS)3Fe2(CO)]I (4) and the fully decarbonylated and oxidized mononuclear [(NNS)2Fe]I (5). The transformations of dicarbonyl complexes (1, 2, and 3) to monocarbonyl complexes (4, 6, and 7) were monitored by UV/vis, demonstrating that 1 and 3 exhibit longer t1/2 (80 and 75 min, respectively) than 2 (30 min), which is attributed to distortion of the ligand backbone. Density functional theory calculations of isolated complexes and putative intermediates were used to corroborate the experimentally observed IR spectra. Finally, dimerization was prevented using a bulky ligand featuring a 2,6-dimethylphenyl substituent, which affords mononuclear iron dicarbonyl complex, [(NPhNSDMPh)Fe(CO)2Br] (8), identified by IR and NMR spectroscopies. The dicarbonyl complex decomposes to the decarbonylated [(NPhNSDMPh)2Fe] (9) within minutes at room temperature. Overall, the work herein demonstrates that the thiolate moiety does not impart thermal stability to the {Fe(CO)2}2+ unit formed in the active site, further indicating the importance of the organometallic Fe-C(acyl) bond in the enzyme.
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Affiliation(s)
- Zhu-Lin Xie
- Department of Chemistry , The University of Texas at Austin , Austin , Texas 78712 , United States
| | - Doran L Pennington
- Department of Chemistry , The University of Texas at Austin , Austin , Texas 78712 , United States
| | - Dylan G Boucher
- Department of Chemistry , The University of Texas at Austin , Austin , Texas 78712 , United States
| | - James Lo
- Department of Chemistry , The University of Texas at Austin , Austin , Texas 78712 , United States
| | - Michael J Rose
- Department of Chemistry , The University of Texas at Austin , Austin , Texas 78712 , United States
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21
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Esmieu C, Raleiras P, Berggren G. From protein engineering to artificial enzymes - biological and biomimetic approaches towards sustainable hydrogen production. SUSTAINABLE ENERGY & FUELS 2018; 2:724-750. [PMID: 31497651 PMCID: PMC6695573 DOI: 10.1039/c7se00582b] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 01/31/2018] [Indexed: 06/09/2023]
Abstract
Hydrogen gas is used extensively in industry today and is often put forward as a suitable energy carrier due its high energy density. Currently, the main source of molecular hydrogen is fossil fuels via steam reforming. Consequently, novel production methods are required to improve the sustainability of hydrogen gas for industrial processes, as well as paving the way for its implementation as a future solar fuel. Nature has already developed an elaborate hydrogen economy, where the production and consumption of hydrogen gas is catalysed by hydrogenase enzymes. In this review we summarize efforts on engineering and optimizing these enzymes for biological hydrogen gas production, with an emphasis on their inorganic cofactors. Moreover, we will describe how our understanding of these enzymes has been applied for the preparation of bio-inspired/-mimetic systems for efficient and sustainable hydrogen production.
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Affiliation(s)
- C Esmieu
- Department of Chemistry , Ångström Laboratory , Uppsala University , Box 523 , SE-75120 Uppsala , Sweden .
| | - P Raleiras
- Department of Chemistry , Ångström Laboratory , Uppsala University , Box 523 , SE-75120 Uppsala , Sweden .
| | - G Berggren
- Department of Chemistry , Ångström Laboratory , Uppsala University , Box 523 , SE-75120 Uppsala , Sweden .
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22
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Kerns SA, Magtaan AC, Vong PR, Rose MJ. Functional Hydride Transfer by a Thiolate-Containing Model of Mono-Iron Hydrogenase featuring an Anthracene Scaffold. Angew Chem Int Ed Engl 2018; 57:2855-2858. [DOI: 10.1002/anie.201712948] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Spencer A. Kerns
- Department of Chemistry; The University of Texas at Austin; Austin TX 78712 USA
| | | | - Pisey R. Vong
- Department of Chemistry; The University of Texas at Austin; Austin TX 78712 USA
| | - Michael J. Rose
- Department of Chemistry; The University of Texas at Austin; Austin TX 78712 USA
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23
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Kerns SA, Magtaan AC, Vong PR, Rose MJ. Functional Hydride Transfer by a Thiolate-Containing Model of Mono-Iron Hydrogenase featuring an Anthracene Scaffold. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712948] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Spencer A. Kerns
- Department of Chemistry; The University of Texas at Austin; Austin TX 78712 USA
| | | | - Pisey R. Vong
- Department of Chemistry; The University of Texas at Austin; Austin TX 78712 USA
| | - Michael J. Rose
- Department of Chemistry; The University of Texas at Austin; Austin TX 78712 USA
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24
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Yan X, Ge H, Yang X. Unexpected concerted two-proton transfer for amination of formic acid to formamide catalysed by Mn bipyridinol complexes. Catal Sci Technol 2018. [DOI: 10.1039/c8cy01424h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
DFT calculations reveal a concerted two-proton transfer mechanism for the activation of diethylamine and formic acid, as well as the formation of formamide and water catalysed by Mn bipyridinol complexes.
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Affiliation(s)
- Xiuli Yan
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Hongyu Ge
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
| | - Xinzheng Yang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species
- CAS Research/Education Center for Excellence in Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
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25
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Feichtner KS, Gessner VH. Cooperative bond activation reactions with carbene complexes. Chem Commun (Camb) 2018; 54:6540-6553. [DOI: 10.1039/c8cc02198h] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review highlights the recent advances in the application of carbene complexes in bond activation reactions via metal–ligand cooperation.
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Affiliation(s)
- Kai-Stephan Feichtner
- Inorganic Chemistry II
- Faculty of Chemistry and Biochemistry
- Ruhr University Bochum
- 44801 Bochum
- Germany
| | - Viktoria H. Gessner
- Inorganic Chemistry II
- Faculty of Chemistry and Biochemistry
- Ruhr University Bochum
- 44801 Bochum
- Germany
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26
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Tang H, Hall MB. Biomimetics of [NiFe]-Hydrogenase: Nickel- or Iron-Centered Proton Reduction Catalysis? J Am Chem Soc 2017; 139:18065-18070. [DOI: 10.1021/jacs.7b10425] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Hao Tang
- Department of Chemistry, Texas A&M University, College Station, Texas 77845, United States
| | - Michael B. Hall
- Department of Chemistry, Texas A&M University, College Station, Texas 77845, United States
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27
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Rigid scaffolds for the design of molecular catalysts and biomimetic active sites: A case study of anthracene-based ligands for modeling mono-iron hydrogenase (Hmd). Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.09.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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28
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Shi J, Shang S, Hu B, Chen D. Ruthenium NNN complexes with a 2‐hydroxypyridylmethylene fragment for transfer hydrogenation of ketones. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.4100] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jing Shi
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and StorageSchool of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China
| | - Shu Shang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and StorageSchool of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China
| | - Bowen Hu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and StorageSchool of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China
| | - Dafa Chen
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and StorageSchool of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China
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29
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Feichtner KS, Scherpf T, Gessner VH. Cooperative Bond Activation Reactions with Ruthenium Carbene Complex PhSO2(Ph2PNSiMe3)C═Ru(p-cymene): Ru═C and N–Si Bond Reactivity. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00254] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Kai-Stephan Feichtner
- Lehrstuhl für Anorganische Chemie II, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Thorsten Scherpf
- Lehrstuhl für Anorganische Chemie II, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Viktoria H. Gessner
- Lehrstuhl für Anorganische Chemie II, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
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30
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Seo J, Manes TA, Rose MJ. Structural and functional synthetic model of mono-iron hydrogenase featuring an anthracene scaffold. Nat Chem 2017; 9:552-557. [DOI: 10.1038/nchem.2707] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 11/25/2016] [Indexed: 12/15/2022]
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31
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Xie ZL, Durgaprasad G, Ali AK, Rose MJ. Substitution reactions of iron(ii) carbamoyl-thioether complexes related to mono-iron hydrogenase. Dalton Trans 2017; 46:10814-10829. [DOI: 10.1039/c7dt01696d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A C,N,S pincer complex has been synthesized for structural modeling of the organometallic active site of mono-[Fe] hydrogenase (HMD).
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Affiliation(s)
- Zhu-Lin Xie
- Department of Chemistry
- The University of Texas at Austin
- Austin
- USA
| | | | - Azim K. Ali
- Department of Chemistry
- The University of Texas at Austin
- Austin
- USA
| | - Michael J. Rose
- Department of Chemistry
- The University of Texas at Austin
- Austin
- USA
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32
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Bai L, Fujishiro T, Huang G, Koch J, Takabayashi A, Yokono M, Tanaka A, Xu T, Hu X, Ermler U, Shima S. Towards artificial methanogenesis: biosynthesis of the [Fe]-hydrogenase cofactor and characterization of the semi-synthetic hydrogenase. Faraday Discuss 2017; 198:37-58. [DOI: 10.1039/c6fd00209a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The greenhouse gas and energy carrier methane is produced on Earth mainly by methanogenic archaea. In the hydrogenotrophic methanogenic pathway the reduction of one CO2 to one methane molecule requires four molecules of H2 containing eight electrons. Four of the electrons from two H2 are supplied for reduction of an electron carrier F420, which is catalyzed by F420-reducing [NiFe]-hydrogenase under nickel-sufficient conditions. The same reaction is catalysed under nickel-limiting conditions by [Fe]-hydrogenase coupled with a reaction catalyzed by F420-dependent methylene tetrahydromethanopterin dehydrogenase. [Fe]-hydrogenase contains an iron-guanylylpyridinol (FeGP) cofactor for H2 activation at the active site. FeII of FeGP is coordinated to a pyridinol-nitrogen, an acyl-carbon, two CO and a cysteine-thiolate. We report here on comparative genomic analyses of biosynthetic genes of the FeGP cofactor, which are primarily located in a hmd-co-occurring (hcg) gene cluster. One of the gene products is HcgB which transfers the guanosine monophosphate (GMP) moiety from guanosine triphosphate (GTP) to a pyridinol precursor. Crystal structure analysis of HcgB from Methanococcus maripaludis and its complex with 6-carboxymethyl-3,5-dimethyl-4-hydroxy-2-pyridinol confirmed the physiological guanylyltransferase reaction. Furthermore, we tested the properties of semi-synthetic [Fe]-hydrogenases using the [Fe]-hydrogenase apoenzyme from several methanogenic archaea and a mimic of the FeGP cofactor. On the basis of the enzymatic reactions involved in the methanogenic pathway, we came up with an idea how the methanogenic pathway could be simplified to develop an artificial methanogenesis system.
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Affiliation(s)
- Liping Bai
- Max-Planck-Institut für terrestrische Mikrobiologie
- 35043 Marburg
- Germany
| | - Takashi Fujishiro
- Max-Planck-Institut für terrestrische Mikrobiologie
- 35043 Marburg
- Germany
| | - Gangfeng Huang
- Max-Planck-Institut für terrestrische Mikrobiologie
- 35043 Marburg
- Germany
| | - Jürgen Koch
- Max-Planck-Institut für terrestrische Mikrobiologie
- 35043 Marburg
- Germany
| | - Atsushi Takabayashi
- The Institute of Low Temperature Science
- Hokkaido University
- Sapporo 060-0819
- Japan
| | - Makio Yokono
- The Institute of Low Temperature Science
- Hokkaido University
- Sapporo 060-0819
- Japan
| | - Ayumi Tanaka
- The Institute of Low Temperature Science
- Hokkaido University
- Sapporo 060-0819
- Japan
| | - Tao Xu
- Institute of Chemical Science and Engineering
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Xile Hu
- Institute of Chemical Science and Engineering
- Ecole Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Ulrich Ermler
- Max-Planck-Institut für Biophysik
- 60438 Frankfurt/Main
- Germany
| | - Seigo Shima
- Max-Planck-Institut für terrestrische Mikrobiologie
- 35043 Marburg
- Germany
- PRESTO
- Japan, Science and Technology Agency (JST)
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33
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Ge H, Jing Y, Yang X. Computational Design of Cobalt Catalysts for Hydrogenation of Carbon Dioxide and Dehydrogenation of Formic Acid. Inorg Chem 2016; 55:12179-12184. [DOI: 10.1021/acs.inorgchem.6b01723] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hongyu Ge
- Beijing National Laboratory for Molecular Sciences, State
Key Laboratory for Structural Chemistry of Unstable and Stable Species,
Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Yuanyuan Jing
- Beijing National Laboratory for Molecular Sciences, State
Key Laboratory for Structural Chemistry of Unstable and Stable Species,
Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Xinzheng Yang
- Beijing National Laboratory for Molecular Sciences, State
Key Laboratory for Structural Chemistry of Unstable and Stable Species,
Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
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34
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Hu B, Chen X, Gong D, Cui W, Yang X, Chen D. Reversible CO Dissociation of Tricarbonyl Iodide [Fe]-Hydrogenase Models Ligating Acylmethylpyridyl Ligands. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00524] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bowen Hu
- MIIT
Key Laboratory of Critical Materials Technology for New Energy Conversion
and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, People’s Republic of China
| | - Xiangyang Chen
- Beijing
National Laboratory for Molecular Sciences, State Key Laboratory for
Structural Chemistry of Unstable and Stable Species, Institute of
Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing, People’s Republic of China
| | - Dawei Gong
- MIIT
Key Laboratory of Critical Materials Technology for New Energy Conversion
and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, People’s Republic of China
| | - Wen Cui
- MIIT
Key Laboratory of Critical Materials Technology for New Energy Conversion
and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, People’s Republic of China
| | - Xinzheng Yang
- Beijing
National Laboratory for Molecular Sciences, State Key Laboratory for
Structural Chemistry of Unstable and Stable Species, Institute of
Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
| | - Dafa Chen
- MIIT
Key Laboratory of Critical Materials Technology for New Energy Conversion
and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang 150001, People’s Republic of China
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35
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Schilter D, Camara JM, Huynh MT, Hammes-Schiffer S, Rauchfuss TB. Hydrogenase Enzymes and Their Synthetic Models: The Role of Metal Hydrides. Chem Rev 2016; 116:8693-749. [PMID: 27353631 PMCID: PMC5026416 DOI: 10.1021/acs.chemrev.6b00180] [Citation(s) in RCA: 397] [Impact Index Per Article: 49.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hydrogenase enzymes efficiently process H2 and protons at organometallic FeFe, NiFe, or Fe active sites. Synthetic modeling of the many H2ase states has provided insight into H2ase structure and mechanism, as well as afforded catalysts for the H2 energy vector. Particularly important are hydride-bearing states, with synthetic hydride analogues now known for each hydrogenase class. These hydrides are typically prepared by protonation of low-valent cores. Examples of FeFe and NiFe hydrides derived from H2 have also been prepared. Such chemistry is more developed than mimicry of the redox-inactive monoFe enzyme, although functional models of the latter are now emerging. Advances in physical and theoretical characterization of H2ase enzymes and synthetic models have proven key to the study of hydrides in particular, and will guide modeling efforts toward more robust and active species optimized for practical applications.
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Affiliation(s)
- David Schilter
- Center for Multidimensional Carbon Materials, Institute for Basic Science (IBS), Ulsan 44919, Republic of Korea
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - James M. Camara
- Department of Chemistry, Yeshiva University, 500 West 185th Street, New York, New York 10033, United States
| | - Mioy T. Huynh
- Department of Chemistry, University of Illinois at Urbana–Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Sharon Hammes-Schiffer
- Department of Chemistry, University of Illinois at Urbana–Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Thomas B. Rauchfuss
- Department of Chemistry, University of Illinois at Urbana–Champaign, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
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36
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Xu T, Yin CJM, Wodrich MD, Mazza S, Schultz KM, Scopelliti R, Hu X. A Functional Model of [Fe]-Hydrogenase. J Am Chem Soc 2016; 138:3270-3. [PMID: 26926708 DOI: 10.1021/jacs.5b12095] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[Fe]-Hydrogenase catalyzes the hydrogenation of a biological substrate via the heterolytic splitting of molecular hydrogen. While many synthetic models of [Fe]-hydrogenase have been prepared, none yet are capable of activating H2 on their own. Here, we report the first Fe-based functional mimic of the active site of [Fe]-hydrogenase, which was developed based on a mechanistic understanding. The activity of this iron model complex is enabled by its unique ligand environment, consisting of biomimetic pyridinylacyl and carbonyl ligands, as well as a bioinspired diphosphine ligand with a pendant amine moiety. The model complex activates H2 and mediates hydrogenation of an aldehyde.
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Affiliation(s)
- Tao Xu
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering and ‡Laboratory for Computational Molecular Design, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Lausanne CH-1015, Switzerland
| | - Chih-Juo Madeline Yin
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering and ‡Laboratory for Computational Molecular Design, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Lausanne CH-1015, Switzerland
| | - Matthew D Wodrich
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering and ‡Laboratory for Computational Molecular Design, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Lausanne CH-1015, Switzerland
| | - Simona Mazza
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering and ‡Laboratory for Computational Molecular Design, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Lausanne CH-1015, Switzerland
| | - Katherine M Schultz
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering and ‡Laboratory for Computational Molecular Design, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Lausanne CH-1015, Switzerland
| | - Rosario Scopelliti
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering and ‡Laboratory for Computational Molecular Design, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Lausanne CH-1015, Switzerland
| | - Xile Hu
- Laboratory of Inorganic Synthesis and Catalysis, Institute of Chemical Sciences and Engineering and ‡Laboratory for Computational Molecular Design, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL) , Lausanne CH-1015, Switzerland
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37
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Song LC, Xu KK, Han XF, Zhang JW. Synthetic and Structural Studies of 2-Acylmethyl-6-R-Difunctionalized Pyridine Ligand-Containing Iron Complexes Related to [Fe]-Hydrogenase. Inorg Chem 2016; 55:1258-69. [PMID: 26756374 DOI: 10.1021/acs.inorgchem.5b02490] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
As active site models of [Fe]-hydrogenase, tridentate 2-acylmethyl-6-methoxymethoxy-difunctionalized pyridine-containing complexes η(3)-(2-COCH2-6-MeOCH2OC5H3N)Fe(CO)2(L1) (4, L1 = I; 5, SCN; 6, PhCS2) were prepared via the following multistep reactions: (i) etherification of 2-MeO2C-6-HOC5H3N with ClCH2OMe to give 2-MeO2C-6-MeOCH2OC5H3N (1), (ii) reduction of 1 with NaBH4 to give 2-HOCH2-6-MeOCH2OC5H3N (2), (iii) esterification of 2 with 4-toluenesulfonyl chloride to give 2-TsOCH2-6-MeOCH2OC5H3N (3), (iv) nucleophilic substitution of 3 with Na2Fe(CO)4 followed by treatment of the resulting Fe(0) intermediate Na[(2-CH2-6-MeOCH2OC5H3N)Fe(CO)4] (M1) with I2 to give complex 4, and (v) condensation of 4 with KSCN and PhCS2K to give complexes 5 and 6, respectively. In contrast to the preparation of complexes 4-6, bidentate 2-acylmethyl-6-methoxymethoxy-difunctionalized pyridine-containing model complexes η(2)-(2-COCH2-6-MeOCH2OC5H3N)Fe(CO)2(I)(L2) (7, L2 = PPh3; 8, Cy-C6H11NC) and η(2)-(2-COCH2-6-MeOCH2OC5H3N)Fe(CO)2(L3) (9, L3 = 2-SC5H4N; 10, 8-SC9H6N) were prepared by ligand exchange reactions of 4 with PPh3, Cy-C6H11NC, 2-KSC5H4N, and 8-KSC9H6N, respectively. Particularly interesting is that the tridentate 2,6-bis(acylmethyl)pyridine- and 2-acylmethyl-6-arylthiomethylpyridine-containing model complexes η(3)-[2,6-(COCH2)2C5H3N]Fe(CO)2(L4) (11, L4 = PPh3; 12, CO) and η(3)-2-(COCH2-6-ArSCH2C5H3N)Fe(CO)2(ArS) (13, ArS = PhS; 14, 2-S-5-MeC4H2O) were obtained, unexpectedly, when 2,6-(TsOCH2)2C5H3N reacted with Na2Fe(CO)4 followed by treatment of the resulting mixture with ligands PPh3 and CO or disulfides (PhS)2 and (2-S-5-MeC4H2O)2. Reactions of ligand precursors 3 and 2,6-(TsOCH2)2C5H3N with Na2Fe(CO)4 were monitored by in situ IR spectroscopy, and the possible pathways for producing complexes 4 and 11-14 via intermediates Na[(2-CH2-6-MeOCH2OC5H3N)Fe(CO)4] (M1), Na[(2-CH2-6-TsOCH2C5H3N)Fe(CO)4] (M2), and (2-COCH2-6-CH2C5H3N)Fe(CO)3 (M3) are suggested. New compounds 1-14 were characterized by elemental analysis, spectroscopy, and, for some of them, X-ray crystallography.
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Affiliation(s)
- Li-Cheng Song
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, ‡Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University , Tianjin 300071, China
| | - Kai-Kai Xu
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, ‡Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University , Tianjin 300071, China
| | - Xiao-Feng Han
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, ‡Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University , Tianjin 300071, China
| | - Ji-Wei Zhang
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, ‡Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University , Tianjin 300071, China
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38
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Weismann J, Waterman R, Gessner VH. Metal-Ligand Cooperativity in a Methandiide-Derived Iridium Carbene Complex. Chemistry 2016; 22:3846-55. [DOI: 10.1002/chem.201503936] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Julia Weismann
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Rory Waterman
- Department of Chemistry; University of Vermont; Burlington Vermont 05405 USA
| | - Viktoria H. Gessner
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
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39
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Jiang S, Zhang T, Zhang X, Zhang G, Hai L, Li B. Synthesis, structural characterization, and chemical properties of pentacoordinate model complexes for the active site of [Fe]-hydrogenase. RSC Adv 2016. [DOI: 10.1039/c6ra18628a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Four pentacoordinate iron dicarbonyl with bulky NHC ligands were synthesised as model of [Fe]-hydrogenase active site, which exhibited different protonation reactivity due to the variable electronic and steric effects of introduced ligands.
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Affiliation(s)
- Shuang Jiang
- School of Chemical Engineering and Technology
- Tianjin Key Laboratory of Applied Catalysis Science and Technology
- Tianjin University
- Tianjin 300354
- China
| | - Tianyong Zhang
- School of Chemical Engineering and Technology
- Tianjin Key Laboratory of Applied Catalysis Science and Technology
- Tianjin University
- Tianjin 300354
- China
| | - Xia Zhang
- School of Chemical Engineering and Technology
- Tianjin Key Laboratory of Applied Catalysis Science and Technology
- Tianjin University
- Tianjin 300354
- China
| | - Guanghui Zhang
- School of Chemical Engineering and Technology
- Tianjin Key Laboratory of Applied Catalysis Science and Technology
- Tianjin University
- Tianjin 300354
- China
| | - Li Hai
- School of Chemical Engineering and Technology
- Tianjin Key Laboratory of Applied Catalysis Science and Technology
- Tianjin University
- Tianjin 300354
- China
| | - Bin Li
- School of Chemical Engineering and Technology
- Tianjin Key Laboratory of Applied Catalysis Science and Technology
- Tianjin University
- Tianjin 300354
- China
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40
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Song LC, Lu Y, Cao M, Yang XY. Reactions of dinuclear Ni 2complexes [Ni(RN PyS 4)] 2(RN PyS 4= 2,6-bis(2-mercaptophenylthiomethyl)-4-R-pyridine) with Fe(CO) 3(BDA) (BDA = benzylidene acetone) leading to heterodinuclear NiFe and mononuclear Fe complexes related to the active sites of [NiFe]- and [Fe]-hydrogenases. RSC Adv 2016. [DOI: 10.1039/c6ra07488j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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41
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Shima S, Chen D, Xu T, Wodrich MD, Fujishiro T, Schultz KM, Kahnt J, Ataka K, Hu X. Reconstitution of [Fe]-hydrogenase using model complexes. Nat Chem 2015; 7:995-1002. [DOI: 10.1038/nchem.2382] [Citation(s) in RCA: 77] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Accepted: 09/23/2015] [Indexed: 11/09/2022]
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42
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43
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Durgaprasad G, Xie ZL, Rose MJ. Iron Hydride Detection and Intramolecular Hydride Transfer in a Synthetic Model of Mono-Iron Hydrogenase with a CNS Chelate. Inorg Chem 2015; 55:386-9. [DOI: 10.1021/acs.inorgchem.5b01733] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Gummadi Durgaprasad
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Zhu-Lin Xie
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Michael J. Rose
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
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44
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Jiang S, Zhang T, Zhang X, Zhang G, Li B. Nitrogen heterocyclic carbene containing pentacoordinate iron dicarbonyl as a [Fe]-hydrogenase active site model. Dalton Trans 2015; 44:16708-12. [PMID: 26369379 DOI: 10.1039/c5dt02065d] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel pentacoordinate mono iron dicarbonyl complex bearing a nitrogen heterocyclic carbene ligand was reported as a model of a [Fe]-hydrogenase active site, which exhibits interesting proton coupled CO binding reactivity, electro-catalytic proton reduction and catalytic transfer hydrogenation reactivity.
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Affiliation(s)
- Shuang Jiang
- School of Chemical Engineering and Technology, Tianjin Key Laboratory of Applied Catalysis Science and Technology, Tianjin University, Tianjin 300072, China.
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45
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Song LC, Cao M, Wang YX. Novel reactions of homodinuclear Ni2 complexes [Ni(RNPyS4)]2 with Fe3(CO)12 to give heterotrinuclear NiFe2 and mononuclear Fe complexes relevant to [NiFe]- and [Fe]-hydrogenases. Dalton Trans 2015; 44:6797-808. [PMID: 25747808 DOI: 10.1039/c5dt00067j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The homodinuclear complexes [Ni(RNPyS4)]2 (; RNPyS4 = 2,6-bis(2-mercaptophenylthiomethyl)-4-R-pyridine; R = H, MeO, Cl, Br, i-Pr) were found to be prepared by reactions of the in situ generated Li2[Ni(1,2-S2C6H4)2] with 2,6-bis[(tosyloxy)methyl]pyridine and its substituted derivatives 2,6-bis[(tosyloxy)methyl]-4-R-pyridine. Further reactions of with Fe3(CO)12 gave both heterotrinuclear complexes NiFe2(RNPyS4)(CO)5 () and mononuclear complexes Fe(RNPyS4)(CO) (), unexpectedly. Interestingly, complexes and could be regarded as models for the active sites of [NiFe]- and [Fe]-hydrogenases, respectively. All the prepared complexes were characterized by elemental analysis, spectroscopy, and particularly for some of them, by X-ray crystallography. In addition, the electrochemical properties of and as well as the electrocatalytic H2 production catalyzed by and were investigated by CV techniques.
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Affiliation(s)
- Li-Cheng Song
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071, China.
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46
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Murray KA, Wodrich MD, Hu X, Corminboeuf C. Toward functional type III [Fe]-hydrogenase biomimics for H2 activation: insights from computation. Chemistry 2015; 21:3987-96. [PMID: 25649221 DOI: 10.1002/chem.201405619] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Indexed: 11/06/2022]
Abstract
The chemistry of [Fe]-hydrogenase has attracted significant interest due to its ability to activate molecular hydrogen. The intriguing properties of this enzyme have prompted the synthesis of numerous small molecule mimics aimed at activating H2. Despite considerable effort, a majority of these compounds remain nonfunctional for hydrogenation reactions. By using a recently synthesized model as an entry point, seven biomimetic complexes have been examined through DFT computations to probe the influence of ligand environment on the ability of a mimic to bind and split H2. One mimic, featuring a bidentate diphosphine group incorporating an internal nitrogen base, was found to have particularly attractive energetics, prompting a study of the role played by the proton/hydride acceptor necessary to complete the catalytic cycle. Computations revealed an experimentally accessible energetic pathway involving a benzaldehyde proton/hydride acceptor and the most promising catalyst.
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Affiliation(s)
- Kevin A Murray
- Laboratory for Computational Molecular Design, Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne (Switzerland)
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47
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Yang X. Bio-inspired computational design of iron catalysts for the hydrogenation of carbon dioxide. Chem Commun (Camb) 2015; 51:13098-101. [DOI: 10.1039/c5cc03372a] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A computationally designed aliphatic PNP iron complex as a mimic of the active center of [Fe]-hydrogenase for the hydrogenation of CO2.
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Affiliation(s)
- Xinzheng Yang
- Beijing National Laboratory for Molecular Sciences
- State Key Laboratory for Structural Chemistry of Unstable and Stable Species
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
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48
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Kalz KF, Brinkmeier A, Dechert S, Mata RA, Meyer F. Functional Model for the [Fe] Hydrogenase Inspired by the Frustrated Lewis Pair Concept. J Am Chem Soc 2014; 136:16626-34. [DOI: 10.1021/ja509186d] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Kai F. Kalz
- Institute
of Inorganic Chemistry, Georg-August-University Göttingen, Tammannstrasse
4, D-37077 Göttingen, Germany
| | - Alexander Brinkmeier
- Institute
of Inorganic Chemistry, Georg-August-University Göttingen, Tammannstrasse
4, D-37077 Göttingen, Germany
| | - Sebastian Dechert
- Institute
of Inorganic Chemistry, Georg-August-University Göttingen, Tammannstrasse
4, D-37077 Göttingen, Germany
| | - Ricardo A. Mata
- Institute
of Physical Chemistry, Georg-August-University Göttingen, Tammannstrasse
6, D-37077 Göttingen, Germany
| | - Franc Meyer
- Institute
of Inorganic Chemistry, Georg-August-University Göttingen, Tammannstrasse
4, D-37077 Göttingen, Germany
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49
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Song LC, Hu FQ, Zhao GY, Zhang JW, Zhang WW. Several New [Fe]Hydrogenase Model Complexes with a Single Fe Center Ligated to an Acylmethyl(hydroxymethyl)pyridine or Acylmethyl(hydroxy)pyridine Ligand. Organometallics 2014. [DOI: 10.1021/om5009296] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [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, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Fu-Qiang Hu
- Department
of Chemistry,
State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Gao-Yu Zhao
- Department
of Chemistry,
State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Ji-Wei Zhang
- Department
of Chemistry,
State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Wei-Wei Zhang
- Department
of Chemistry,
State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
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50
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Seo J, Ali AK, Rose MJ. Novel Ligand Architectures for Metalloenzyme Modeling: Anthracene-Based Ligands for Synthetic Modeling of Mono-[Fe] Hydrogenase. COMMENT INORG CHEM 2014. [DOI: 10.1080/02603594.2014.961062] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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