1
|
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
| |
Collapse
|
2
|
Brief survey of diiron and monoiron carbonyl complexes and their potentials as CO-releasing molecules (CORMs). Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213634] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
3
|
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.
Collapse
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
| |
Collapse
|
4
|
Estrada-Montaño AS, Gries A, Oviedo-Fortino JA, Torres-Gutierrez C, Grain-Hayton A, Marcial-Hernández R, Shen L, Ryabov AD, Gaiddon C, Le Lagadec R. Dibromine Promoted Transmetalation of an Organomercurial by Fe(CO)5: Synthesis, Properties, and Cytotoxicity of Bis(2-C6H4-2′-py-κC,N)dicarbonyliron(II). Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00107] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Aldo S. Estrada-Montaño
- Instituto de Quı́mica UNAM, Circuito Exterior s/n, Ciudad Universitaria, 04510 Ciudad de México, Mexico
| | - Alexandre Gries
- Strasbourg Université, Inserm UMR_S U1113, IRFAC, 3 Avenue Molière, 67200 Strasbourg, France
| | - José A. Oviedo-Fortino
- Instituto de Quı́mica UNAM, Circuito Exterior s/n, Ciudad Universitaria, 04510 Ciudad de México, Mexico
| | - Carolina Torres-Gutierrez
- Instituto de Quı́mica UNAM, Circuito Exterior s/n, Ciudad Universitaria, 04510 Ciudad de México, Mexico
| | - Amira Grain-Hayton
- Instituto de Quı́mica UNAM, Circuito Exterior s/n, Ciudad Universitaria, 04510 Ciudad de México, Mexico
| | | | - Longzhu Shen
- University of Cambridge, CB2 3EJ Cambridge, United Kingdom
| | - Alexander D. Ryabov
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213, United States
| | - Christian Gaiddon
- Strasbourg Université, Inserm UMR_S U1113, IRFAC, 3 Avenue Molière, 67200 Strasbourg, France
| | - Ronan Le Lagadec
- Instituto de Quı́mica UNAM, Circuito Exterior s/n, Ciudad Universitaria, 04510 Ciudad de México, Mexico
| |
Collapse
|
5
|
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.
Collapse
|
6
|
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
| |
Collapse
|
7
|
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]
|
8
|
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]
|
9
|
Barik CK, Ganguly R, Li Y, Leong WK. Ruthenacyclic Carbamoyl Complexes: Highly Efficient Catalysts for Organosilane Hydrolysis. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201801012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chandan Kr Barik
- Division of Chemistry & Biological Chemistry Nanyang Technological University 21 Nanyang Link 637371 Singapore
| | - Rakesh Ganguly
- Division of Chemistry & Biological Chemistry Nanyang Technological University 21 Nanyang Link 637371 Singapore
| | - Yongxin Li
- Division of Chemistry & Biological Chemistry Nanyang Technological University 21 Nanyang Link 637371 Singapore
| | - Weng Kee Leong
- Division of Chemistry & Biological Chemistry Nanyang Technological University 21 Nanyang Link 637371 Singapore
| |
Collapse
|
10
|
Barik CK, Ganguly R, Li Y, Przybylski C, Salmain M, Leong WK. Embedding a Ruthenium-Based Structural Mimic of the [Fe]-Hydrogenase Cofactor into Papain. Inorg Chem 2018; 57:12206-12212. [PMID: 30198260 DOI: 10.1021/acs.inorgchem.8b01835] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We describe the synthesis of the ruthenacyclic carbamoyl complexes [Ru(2-NHC(O)C5H3NMe)(CO)2( o,o-Me2-C6H3S)(L)] (L = H2O or MeCN), which have a labile water or acetonitrile ligand at their sixth coordination sites. Steric bulk around the ruthenium center is essential in preventing isomerization and dimerization, and embedding within papain can be achieved via coordination of its sole free cysteine residue. The observed chemistry parallels that of the natural [Fe]-hydrogenase.
Collapse
Affiliation(s)
- Chandan Kr Barik
- Division of Chemistry & Biological Chemistry , Nanyang Technological University , 21 Nanyang Link , Singapore 637371 , Singapore
| | - Rakesh Ganguly
- Division of Chemistry & Biological Chemistry , Nanyang Technological University , 21 Nanyang Link , Singapore 637371 , Singapore
| | - Yongxin Li
- Division of Chemistry & Biological Chemistry , Nanyang Technological University , 21 Nanyang Link , Singapore 637371 , Singapore
| | - Cédric Przybylski
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (IPCM) , 4 place Jussieu , F-75005 Paris , France
| | - Michèle Salmain
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (IPCM) , 4 place Jussieu , F-75005 Paris , France
| | - Weng Kee Leong
- Division of Chemistry & Biological Chemistry , Nanyang Technological University , 21 Nanyang Link , Singapore 637371 , Singapore
| |
Collapse
|
11
|
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.
Collapse
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
| |
Collapse
|
12
|
Barik CK, Ganguly R, Li Y, Leong WK. Structural Mimics of the [Fe]-Hydrogenase: A Complete Set for Group VIII Metals. Inorg Chem 2018; 57:7113-7120. [PMID: 29799728 DOI: 10.1021/acs.inorgchem.8b00838] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A set of structural mimics of the [Fe]-hydrogenase active site comprising all the group VIII metals, viz., [M(2-NHC(O)C5H4N)(CO)2(2-S-C5H4N)], has been synthesized. They exist as a mixture of isomers in solution, and the relative stability of the isomers depends on the nature of the metal and the substituent at the 6-position of the pyridine ligand.
Collapse
Affiliation(s)
- Chandan Kr Barik
- Division of Chemistry & Biological Chemistry , Nanyang Technological University , 21 Nanyang Link , Singapore , 637371
| | - Rakesh Ganguly
- Division of Chemistry & Biological Chemistry , Nanyang Technological University , 21 Nanyang Link , Singapore , 637371
| | - Yongxin Li
- Division of Chemistry & Biological Chemistry , Nanyang Technological University , 21 Nanyang Link , Singapore , 637371
| | - Weng Kee Leong
- Division of Chemistry & Biological Chemistry , Nanyang Technological University , 21 Nanyang Link , Singapore , 637371
| |
Collapse
|
13
|
Song LC, Zhu L, Hu FQ, Wang YX. Studies on Chemical Reactivity and Electrocatalysis of Two Acylmethyl(hydroxymethyl)pyridine Ligand-Containing [Fe]-Hydrogenase Models (2-COCH2-6-HOCH2C5H3N)Fe(CO)2L (L = η1-SCOMe, η1-2-SC5H4N). Inorg Chem 2017; 56:15216-15230. [DOI: 10.1021/acs.inorgchem.7b02582] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Li-Cheng Song
- Department
of Chemistry, State Key Laboratory of Elemento-Organic Chemistry,
College of Chemistry, and ‡Collaborative Innovation Center of Chemical Science
and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Liang Zhu
- Department
of Chemistry, State Key Laboratory of Elemento-Organic Chemistry,
College of Chemistry, and ‡Collaborative Innovation Center of Chemical Science
and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Fu-Qiang Hu
- Department
of Chemistry, State Key Laboratory of Elemento-Organic Chemistry,
College of Chemistry, and ‡Collaborative Innovation Center of Chemical Science
and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| | - Yong-Xiang Wang
- Department
of Chemistry, State Key Laboratory of Elemento-Organic Chemistry,
College of Chemistry, and ‡Collaborative Innovation Center of Chemical Science
and Engineering (Tianjin), Nankai University, Tianjin 300071, China
| |
Collapse
|