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Maia LB. Bringing Nitric Oxide to the Molybdenum World-A Personal Perspective. Molecules 2023; 28:5819. [PMID: 37570788 PMCID: PMC10420851 DOI: 10.3390/molecules28155819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 07/29/2023] [Accepted: 07/30/2023] [Indexed: 08/13/2023] Open
Abstract
Molybdenum-containing enzymes of the xanthine oxidase (XO) family are well known to catalyse oxygen atom transfer reactions, with the great majority of the characterised enzymes catalysing the insertion of an oxygen atom into the substrate. Although some family members are known to catalyse the "reverse" reaction, the capability to abstract an oxygen atom from the substrate molecule is not generally recognised for these enzymes. Hence, it was with surprise and scepticism that the "molybdenum community" noticed the reports on the mammalian XO capability to catalyse the oxygen atom abstraction of nitrite to form nitric oxide (NO). The lack of precedent for a molybdenum- (or tungsten) containing nitrite reductase on the nitrogen biogeochemical cycle contributed also to the scepticism. It took several kinetic, spectroscopic and mechanistic studies on enzymes of the XO family and also of sulfite oxidase and DMSO reductase families to finally have wide recognition of the molybdoenzymes' ability to form NO from nitrite. Herein, integrated in a collection of "personal views" edited by Professor Ralf Mendel, is an overview of my personal journey on the XO and aldehyde oxidase-catalysed nitrite reduction to NO. The main research findings and the path followed to establish XO and AO as competent nitrite reductases are reviewed. The evidence suggesting that these enzymes are probable players of the mammalian NO metabolism is also discussed.
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Affiliation(s)
- Luisa B Maia
- LAQV, REQUIMTE, Department of Chemistry, NOVA School of Science and Technology (FCT NOVA), 2829-516 Caparica, Portugal
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2
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Yang J, Struwe M, Scheidig A, Mengell J, Clement B, Kirk ML. Active Site Structures of the Escherichia coli N-Hydroxylaminopurine Resistance Molybdoenzyme YcbX. Inorg Chem 2023; 62:5315-5319. [PMID: 36971376 PMCID: PMC10544827 DOI: 10.1021/acs.inorgchem.3c00342] [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] [Indexed: 03/29/2023]
Abstract
X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine structure (EXAFS) data have been used to characterize the coordination environment for the catalytic Mo site of Escherichia coli YcbX in two different oxidation states. In the oxidized state, the Mo(VI) ion is coordinated by two terminal oxo ligands, a thiolate S atom from cysteine, and two S donors from the bidentate pyranopterin ene-1,2-dithiolate (pyranopterin dithiolene). Upon reduction, it is the more basic equatorial oxo ligand that is protonated, with a Mo-Oeq bond distance that is best described as either a short Mo4+-OH2 bond or a long Mo4+-OH bond. Mechanistic implications for substrate reduction are discussed in light of these structural details.
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Affiliation(s)
- Jing Yang
- Department of Chemistry and Chemical Biology, The University of New Mexico, MSC03 2060, 1 University of New Mexico, Albuquerque, NM 87131-0001
| | - Michel Struwe
- Zoologisches Institut – Strukturbiologie, Zentrum für Biochemie und Molekularbiologie Christian-Albrechts-Universität zu Kiel, Am Botanischen Garten 1-9, 24118 Kiel, Germany
- Pharmazeutisches Institut, Christian-Albrechts-Universität zu Kiel, Gutenbergstraße 76, 24118 Kiel, Germany
| | - Axel Scheidig
- Zoologisches Institut – Strukturbiologie, Zentrum für Biochemie und Molekularbiologie Christian-Albrechts-Universität zu Kiel, Am Botanischen Garten 1-9, 24118 Kiel, Germany
| | - Joshua Mengell
- Department of Chemistry and Chemical Biology, The University of New Mexico, MSC03 2060, 1 University of New Mexico, Albuquerque, NM 87131-0001
| | - Bernd Clement
- Pharmazeutisches Institut, Christian-Albrechts-Universität zu Kiel, Gutenbergstraße 76, 24118 Kiel, Germany
| | - Martin L. Kirk
- Department of Chemistry and Chemical Biology, The University of New Mexico, MSC03 2060, 1 University of New Mexico, Albuquerque, NM 87131-0001
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3
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Hille R, Niks D. Application of EPR and related methods to molybdenum-containing enzymes. Methods Enzymol 2022; 666:373-412. [PMID: 35465925 DOI: 10.1016/bs.mie.2022.02.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A description is provided of the contributions made to our understanding of molybdenum-containing enzymes through the application of electron paramagnetic resonance spectroscopy and related methods, by way of illustrating how these can be applied to better understand enzyme structure and function. An emphasis is placed on the use of EPR to identify both the coordination environment of the molybdenum coordination sphere as well as the structures of paramagnetic intermediates observed transiently in the course of reaction that have led to the elucidation of reaction mechanism.
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Affiliation(s)
- Russ Hille
- Department of Biochemistry, University of California, Riverside, CA, United States.
| | - Dimitri Niks
- Department of Biochemistry, University of California, Riverside, CA, United States
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4
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Enemark JH. {Moco}n, (n = 0–8): A general formalism for describing the highly covalent molybdenum cofactor of sulfite oxidase and related Mo enzymes,. J Inorg Biochem 2022; 231:111801. [DOI: 10.1016/j.jinorgbio.2022.111801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 03/05/2022] [Accepted: 03/13/2022] [Indexed: 11/29/2022]
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5
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Mohammed TP, Sankaralingam M. Reactivities of high valent manganese-oxo porphyrins in aqueous medium. Tetrahedron 2022. [DOI: 10.1016/j.tet.2021.132483] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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6
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Jentoft FC. Transition metal-catalyzed deoxydehydration: missing pieces of the puzzle. Catal Sci Technol 2022. [DOI: 10.1039/d1cy02083h] [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
Deoxydehydration (DODH) is a transformation that converts a vicinal diol into an olefin with the help of a sacrificial reductant.
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Affiliation(s)
- Friederike C. Jentoft
- Department of Chemical Engineering, University of Massachusetts Amherst, 686 North Pleasant Street, Amherst, MA 01003-9303, USA
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7
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Erickson AN, Gianino J, Markovitz SJ, Brown SN. Amphiphilicity in Oxygen Atom Transfer Reactions of Oxobis(iminoxolene)osmium Complexes. Inorg Chem 2021; 60:4004-4014. [PMID: 33657323 DOI: 10.1021/acs.inorgchem.1c00068] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Oxobis(iminoxolene)osmium(VI) compounds (Rap)2OsO (Rap = 2-(4-RC6H4N)-4,6-tBu2C6H2O) are readily deoxygenated by phosphines and phosphites to give five-coordinate (Rap)2Os(PR'3) or six-coordinate (Rap)2Os(PR'3)2. Structural data indicate that this net two-electron reduction is accompanied by apparent oxidation of the iminoxolene ligands due to their greater ability to engage in π donation to the reduced deoxy form of the osmium complex. In (Rap)2Os(PR'3)2, the HOMO is a ligand-based combination of the iminoxolene redox-active orbitals, while the LUMO is a highly covalent metal-iminoxolene π* orbital. In the trans isomer, the HOMO is required to be ligand-localized by symmetry, while in the cis isomer, the ligands adopt a conformation that minimizes metal-ligand π* interactions in the HOMO. Kinetic studies indicate that the deoxygenations involve the rate-determining attack of the phosphorus(III) reagent on the five-coordinate oxo complexes. Varying the substituents of the aryl groups on the iminoxolene ligands or on the triarylphosphines has little effect on the rate of oxygen atom transfer, with the best correlation shown between oxygen atom transfer rates and the HOMO-LUMO gap of the oxo complexes. This suggests that the osmium oxo group shows a balance between electrophilic and nucleophilic character in its oxygen atom transfer reactions with phosphorus(III) reagents.
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Affiliation(s)
- Alexander N Erickson
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556-5670, United States
| | - Jacqueline Gianino
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556-5670, United States
| | - Sean J Markovitz
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556-5670, United States
| | - Seth N Brown
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556-5670, United States
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8
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Ranis LG, Gianino J, Hoffman JM, Brown SN. Nonclassical oxygen atom transfer reactions of an eight-coordinate dioxomolybdenum( vi) complex. Inorg Chem Front 2021. [DOI: 10.1039/d1qi00308a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Eight-coordinate MoO2(DOPOQ)2 can donate two oxygen atoms to substrates such as phosphines in a four-electron nonclassical oxygen atom transfer reaction.
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Affiliation(s)
- Leila G. Ranis
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Notre Dame
- USA
| | - Jacqueline Gianino
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Notre Dame
- USA
| | - Justin M. Hoffman
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Notre Dame
- USA
| | - Seth N. Brown
- Department of Chemistry and Biochemistry
- University of Notre Dame
- Notre Dame
- USA
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9
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Ward JP, Lim PJ, Evans DJ, White JM, Young CG. Tungsten Ligand-Based Sulfur-Atom-Transfer Catalysts: Synthesis, Characterization, Sustained Anaerobic Catalysis, and Mode of Aerial Deactivation. Inorg Chem 2020; 59:16824-16828. [PMID: 33200921 DOI: 10.1021/acs.inorgchem.0c02915] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthesis, properties, X-ray structures, and catalytic sulfur-atom-transfer (SAT) reactions of W2(μ-S)(μ-S2)(dtc)2(dped)2 [1; dtc = S2CNR2-, where R = Me, Et, iBu, and Bn; dped = S2C2Ph22-] and W2(μ-S)2(dtc)2(dped)2 (2) are reported. These complexes represent the oxidized (1) and reduced (2) forms of anaerobic SAT catalysts operating through the bidirectional, ligand-based half-reaction (μ-S)(μ-S2) ↔ (μ-S)2 + S0. The catalysts are deactivated in air through the formation of catalytically inactive oxo complexes, (dtc)WO(μ-S)(μ-dped)W(dtc)(dped) (3), prompting us to recommend that group 6 SAT activity be assessed under strictly anaerobic conditions.
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Affiliation(s)
- James P Ward
- School of Chemistry, University of Melbourne, Victoria, 3010, Australia
| | - Patrick J Lim
- Department of Chemistry, University of San Carlos, Cebu City, Philippines
| | - David J Evans
- School of Chemistry, University of Melbourne, Victoria, 3010, Australia
| | - Jonathan M White
- School of Chemistry, University of Melbourne, Victoria, 3010, Australia.,Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Charles G Young
- Department of Chemistry and Physics, La Trobe Institute of Molecular Sciences, La Trobe University, Melbourne, Victoria 3086, Australia
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10
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Petel BE, Matson EM. Physicochemical Factors That Influence the Deoxygenation of Oxyanions in Atomically Precise, Oxygen-Deficient Vanadium Oxide Assemblies. Inorg Chem 2020; 60:6855-6864. [DOI: 10.1021/acs.inorgchem.0c02052] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Brittney E. Petel
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Ellen M. Matson
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
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11
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Petel BE, Matson EM. Oxygen-atom vacancy formation and reactivity in polyoxovanadate clusters. Chem Commun (Camb) 2020; 56:13477-13490. [DOI: 10.1039/d0cc05920j] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Overview of recent work detailing oxygen-deficient polyoxovanadate clusters as models for reducible metal oxides: toward gaining a fundamental understanding the consequences of vacancy formation on metal oxide surfaces during catalysis.
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12
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Hartmann NJ, Wu G, Hayton TW. Synthesis and reactivity of a nickel(ii) thioperoxide complex: demonstration of sulfide-mediated N 2O reduction. Chem Sci 2018; 9:6580-6588. [PMID: 30310590 PMCID: PMC6115681 DOI: 10.1039/c8sc02536c] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Accepted: 06/26/2018] [Indexed: 11/21/2022] Open
Abstract
The “masked” terminal nickel sulfide [K(18-crown-6)][LtBuNiII(S)] mediates the reduction of N2O by CO, via the thioperoxide complex [K(18-crown-6)][LtBuNiII(η2-SO)].
The thiohyponitrite ([SNNO]2–) complex, [K(18-crown-6)][LtBuNiII(κ2-SNNO)] (LtBu = {(2,6-iPr2C6H3)NC(tBu)}2CH), extrudes N2 under mild heating to yield [K(18-crown-6)][LtBuNiII(η2-SO)] (1), along with minor products [K(18-crown-6)][LtBuNiII(η2-OSSO)] (2) and [K(18-crown-6)][LtBuNiII(η2-S2)] (3). Subsequent reaction of 1 with carbon monoxide (CO) results in the formation of [K(18-crown-6)][LtBuNiII(η2-SCO)] (4), [K(18-crown-6)][LtBuNiII(S,O:κ2-SCO2)] (5), [K(18-crown-6)][LtBuNiII(κ2-CO3)] (6), carbonyl sulfide (COS) (7), and [K(18-crown-6)][LtBuNiII(S2CO)] (8). To rationalize the formation of these products we propose that 1 first reacts with CO to form [K(18-crown-6)][LtBuNiII(S)] (I) and CO2, via O-atom abstraction. Subsequently, complex I reacts with CO or CO2 to form 4 and 5, respectively. Similarly, the formation of complex 6 and COS can be rationalized by the reaction of 1 with CO2 to form a putative Ni(ii) monothiopercarbonate, [K(18-crown-6)][LtBuNiII(κ2-SOCO2)] (11). The Ni(ii) monothiopercarbonate subsequently transfers a S-atom to CO to form COS and [K(18-crown-6)][LtBuNiII(κ2-CO3)] (6). Finally, the formation of 8 can be rationalized by the reaction of COS with I. Critically, the observation of complexes 4 and 5 in the reaction mixture reveals the stepwise conversion of [K(18-crown-6)][LtBuNiII(κ2-SNNO)] to 1 and then I, which represents the formal reduction of N2O by CO.
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Affiliation(s)
- Nathaniel J Hartmann
- Department of Chemistry and Biochemistry , University of California , Santa Barbara , California , 93106 USA .
| | - Guang Wu
- Department of Chemistry and Biochemistry , University of California , Santa Barbara , California , 93106 USA .
| | - Trevor W Hayton
- Department of Chemistry and Biochemistry , University of California , Santa Barbara , California , 93106 USA .
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13
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Qian HX, Liao RZ. QM/MM Study of Tungsten-Dependent Benzoyl-Coenzyme A Reductase: Rationalization of Regioselectivity and Predication of W vs Mo Selectivity. Inorg Chem 2018; 57:10667-10678. [DOI: 10.1021/acs.inorgchem.8b01328] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hui-Xia Qian
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Rong-Zhen Liao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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14
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Cook BJ, Pink M, Pal K, Caulton KG. Electron and Oxygen Atom Transfer Chemistry of Co(II) in a Proton Responsive, Redox Active Ligand Environment. Inorg Chem 2018; 57:6176-6185. [DOI: 10.1021/acs.inorgchem.8b00816] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Brian J. Cook
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Maren Pink
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Kuntal Pal
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
| | - Kenneth G. Caulton
- Department of Chemistry, Indiana University, Bloomington, Indiana 47405, United States
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15
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Affiliation(s)
- David M. Stanbury
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
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16
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Stubbs AW, Braglia L, Borfecchia E, Meyer RJ, Román- Leshkov Y, Lamberti C, Dincă M. Selective Catalytic Olefin Epoxidation with MnII-Exchanged MOF-5. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02946] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Amanda W. Stubbs
- Department
of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts
Avenue, Cambridge, Massachusetts 02139, United States
| | - Luca Braglia
- Department
of Chemistry, NIS and CrisDi Interdepartmental Centers, INSTM Reference
Center, University of Turin, Via P Giuria 7, I-10125 Turin, Italy
- International
research center “Smart Materials”, Southern Federal University, 5 Zorge Street, Rostov-on-Don 344090, Russia
| | - Elisa Borfecchia
- Department
of Chemistry, NIS and CrisDi Interdepartmental Centers, INSTM Reference
Center, University of Turin, Via P Giuria 7, I-10125 Turin, Italy
| | - Randall J. Meyer
- Corporate
Strategic Research, ExxonMobil Research and Engineering, 1545 Route 22, Annandale, New Jersey 08801, United States
| | - Yuriy Román- Leshkov
- Department
of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts
Avenue, Cambridge, Massachusetts 02139, United States
| | - Carlo Lamberti
- Department
of Chemistry, NIS and CrisDi Interdepartmental Centers, INSTM Reference
Center, University of Turin, Via P Giuria 7, I-10125 Turin, Italy
- International
research center “Smart Materials”, Southern Federal University, 5 Zorge Street, Rostov-on-Don 344090, Russia
| | - Mircea Dincă
- Department
of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts
Avenue, Cambridge, Massachusetts 02139, United States
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Gunsalus NJ, Koppaka A, Park SH, Bischof SM, Hashiguchi BG, Periana RA. Homogeneous Functionalization of Methane. Chem Rev 2017; 117:8521-8573. [PMID: 28459540 DOI: 10.1021/acs.chemrev.6b00739] [Citation(s) in RCA: 244] [Impact Index Per Article: 34.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
One of the remaining "grand challenges" in chemistry is the development of a next generation, less expensive, cleaner process that can allow the vast reserves of methane from natural gas to augment or replace oil as the source of fuels and chemicals. Homogeneous (gas/liquid) systems that convert methane to functionalized products with emphasis on reports after 1995 are reviewed. Gas/solid, bioinorganic, biological, and reaction systems that do not specifically involve methane functionalization are excluded. The various reports are grouped under the main element involved in the direct reactions with methane. Central to the review is classification of the various reports into 12 categories based on both practical considerations and the mechanisms of the elementary reactions with methane. Practical considerations are based on whether or not the system reported can directly or indirectly utilize O2 as the only net coreactant based only on thermodynamic potentials. Mechanistic classifications are based on whether the elementary reactions with methane proceed by chain or nonchain reactions and with stoichiometric reagents or catalytic species. The nonchain reactions are further classified as CH activation (CHA) or CH oxidation (CHO). The bases for these various classifications are defined. In particular, CHA reactions are defined as elementary reactions with methane that result in a discrete methyl intermediate where the formal oxidation state (FOS) on the carbon remains unchanged at -IV relative to that in methane. In contrast, CHO reactions are defined as elementary reactions with methane where the carbon atom of the product is oxidized and has a FOS less negative than -IV. This review reveals that the bulk of the work in the field is relatively evenly distributed across most of the various areas classified. However, a few areas are only marginally examined, or not examined at all. This review also shows that, while significant scientific progress has been made, greater advances, particularly in developing systems that can utilize O2, will be required to develop a practical process that can replace the current energy and capital intensive natural gas conversion process. We believe that this classification scheme will provide the reader with a rapid way to identify systems of interest while providing a deeper appreciation and understanding, both practical and fundamental, of the extensive literature on methane functionalization. The hope is that this could accelerate progress toward meeting this "grand challenge."
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Affiliation(s)
- Niles Jensen Gunsalus
- The Scripps Energy & Materials Center, The Scripps Research Institute , Jupiter, Florida 33458, United States
| | - Anjaneyulu Koppaka
- The Scripps Energy & Materials Center, The Scripps Research Institute , Jupiter, Florida 33458, United States
| | - Sae Hume Park
- The Scripps Energy & Materials Center, The Scripps Research Institute , Jupiter, Florida 33458, United States
| | - Steven M Bischof
- The Scripps Energy & Materials Center, The Scripps Research Institute , Jupiter, Florida 33458, United States
| | - Brian G Hashiguchi
- The Scripps Energy & Materials Center, The Scripps Research Institute , Jupiter, Florida 33458, United States
| | - Roy A Periana
- The Scripps Energy & Materials Center, The Scripps Research Institute , Jupiter, Florida 33458, United States
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18
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Maia LB, Moura I, Moura JJ. Molybdenum and tungsten-containing formate dehydrogenases: Aiming to inspire a catalyst for carbon dioxide utilization. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.07.010] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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19
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Maia LB, Moura I, Moura JJ. EPR Spectroscopy on Mononuclear Molybdenum-Containing Enzymes. FUTURE DIRECTIONS IN METALLOPROTEIN AND METALLOENZYME RESEARCH 2017. [DOI: 10.1007/978-3-319-59100-1_4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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20
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Morello GR, Cundari TR. Density Functional Study of Oxygen Insertion into Niobium–Phosphorus Bonds: Novel Mechanism for Liberating P3– Synthons. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00679] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Glenn R. Morello
- Centre
for Theoretical and Computational Chemistry (CTCC) and Department
of Chemistry, University of Tromsø, N-9037 Tromsø, Norway
| | - Thomas R. Cundari
- Department
of Chemistry, Center for Advanced Scientific Computing and Modeling
(CASCaM), University of North Texas, P.O. Box 305070, Denton, Texas 76203-5070, United States
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Ducrot AB, Coulson BA, Perutz RN, Duhme-Klair AK. Light-Induced Activation of a Molybdenum Oxotransferase Model within a Ru(II)-Mo(VI) Dyad. Inorg Chem 2016; 55:12583-12594. [PMID: 27690401 DOI: 10.1021/acs.inorgchem.6b01485] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Nature uses molybdenum-containing enzymes to catalyze oxygen atom transfer (OAT) from water to organic substrates. In these enzymes, the two electrons that are released during the reaction are rapidly removed, one at a time, by spatially separated electron transfer units. Inspired by this design, a Ru(II)-Mo(VI) dyad was synthesized and characterized, with the aim of accelerating the rate-determining step in the cis-dioxo molybdenum-catalyzed OAT cycle, the transfer of an oxo ligand to triphenyl phosphine, via a photo-oxidation process. The dyad consists of a photoactive bis(bipyridyl)-phenanthroline ruthenium moiety that is covalently linked to a bioinspired cis-dioxo molybdenum thiosemicarbazone complex. The quantum yield and luminescence lifetimes of the dyad [Ru(bpy)2(L2)MoO2(solv)]2+ were determined. The major component of the luminescence decay in MeCN solution (τ = 1149 ± 2 ns, 67%) corresponds closely to the lifetime of excited [Ru(bpy)2(phen-NH2)]2+, while the minor component (τ = 320 ± 1 ns, 31%) matches that of [Ru(bpy)2(H2-L2)]2+. In addition, the (spectro)electrochemical properties of the system were investigated. Catalytic tests showed that the dyad-catalyzed OAT from dimethyl sulfoxide to triphenyl phosphine proceeds significantly faster upon irradiation with visible light than in the dark. Methylviologen acts as a mediator in the photoredox cycle, but it is regenerated and hence only required in stoichiometric amounts with respect to the catalyst rather than sacrificial amounts. It is proposed that oxidative quenching of the photoexcited Ru unit, followed by intramolecular electron transfer, leads to the production of a reactive one-electron oxidized catalyst, which is not accessible by electrochemical methods. A significant, but less pronounced, rate enhancement was observed when an analogous bimolecular system was tested, indicating that intramolecular electron transfer between the photosensitizer and the catalytic center is more efficient than intermolecular electron transfer between the separate components.
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Affiliation(s)
- Aurélien B Ducrot
- Department of Chemistry, University of York , Heslington, York YO10 5DD, United Kingdom
| | - Ben A Coulson
- Department of Chemistry, University of York , Heslington, York YO10 5DD, United Kingdom
| | - Robin N Perutz
- Department of Chemistry, University of York , Heslington, York YO10 5DD, United Kingdom
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22
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Polezhaev AV, Maciulis NA, Chen CH, Pink M, Lord RL, Caulton KG. Tetrazine Assists Reduction of Water by Phosphines: Application in the Mitsunobu Reaction. Chemistry 2016; 22:13985-13998. [PMID: 27535201 DOI: 10.1002/chem.201600913] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Indexed: 11/06/2022]
Abstract
Reaction of 3,6-disubstituted-1,2,4,5-tetrazines with water and PEt3 forms the corresponding 1,4-dihydrotetrazine and OPEt3 . Thus PEt3 , as a stoichiometric reductant, reduces water, and the resulting two reducing equivalents serve to doubly hydrogenate the tetrazine. A variety of possible initial interactions between electron-deficient tetrazine and electron-rich PR3 , including a charge transfer complex, were evaluated by density functional calculations which revealed that the energy of all these make them spectroscopically undetectable at equilibrium, but one of these is nevertheless suggested as the intermediate in the observed redox reaction. The relationship of this to the Mitsunobu reaction, which absorbs the components of water evolved in the conversion of alcohol and carboxylic acid to ester, with desirable inversion at the alcohol carbon, is discussed. This enables a modified Mitsunobu reaction, with tetrazine replacing EtO2 CN=NCO2 Et (DEAD), which has the advantage that dihydrotetrazine can be recycled to tetrazine by oxidation with O2 , something impossible with the hydrogenated DEAD. For this tetrazine version, a betaine-like intermediate is undetectable, but its protonated form is characterized, including by X-ray structure and NMR spectroscopy.
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Affiliation(s)
- Alexander V Polezhaev
- Department of Chemistry, Indiana University Bloomington, 47405, Bloomington, IN, USA
| | - Nicholas A Maciulis
- Department of Chemistry, Indiana University Bloomington, 47405, Bloomington, IN, USA
| | - Chun-Hsing Chen
- Department of Chemistry, Indiana University Bloomington, 47405, Bloomington, IN, USA
| | - Maren Pink
- Department of Chemistry, Indiana University Bloomington, 47405, Bloomington, IN, USA
| | - Richard L Lord
- Department of Chemistry, Grand Valley State University, 49401, Allendale, MI, USA
| | - Kenneth G Caulton
- Department of Chemistry, Indiana University Bloomington, 47405, Bloomington, IN, USA.
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23
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Lee E, Bae DY, Park S, Oliver AG, Kim Y, Yandulov DV. A Palladium(II) Peroxido Complex Supported by the Smallest Steric N‐Heterocyclic Carbene,
I
Me = 1,3‐Dimethylimidazole‐2‐ylidene, and Its Reactivity by Oxygen‐Atom Transfer. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201601019] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Eunsung Lee
- Department of Chemistry Stanford University 94305‐5080 Stanford CA USA
- Center for Self‐assembly and Complexity (CSC) Institute for Basic Science (IBS) 790‐784 Pohang Republic of Korea
- Department of Chemistry and Division of Advanced Materials Science Pohang University of Science and Technology 790‐784 Pohang Republic of Korea
| | - Dae Young Bae
- Center for Self‐assembly and Complexity (CSC) Institute for Basic Science (IBS) 790‐784 Pohang Republic of Korea
- Department of Chemistry and Division of Advanced Materials Science Pohang University of Science and Technology 790‐784 Pohang Republic of Korea
| | - Sungho Park
- Center for Self‐assembly and Complexity (CSC) Institute for Basic Science (IBS) 790‐784 Pohang Republic of Korea
| | - Allen G. Oliver
- Department of Chemistry and Biochemistry University of Notre Dame 46556 Notre Dame IN USA
| | - Yonghwi Kim
- Center for Self‐assembly and Complexity (CSC) Institute for Basic Science (IBS) 790‐784 Pohang Republic of Korea
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24
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Wood C, Browne C, Wood DM, Nitschke JR. Fuel-Controlled Reassembly of Metal-Organic Architectures. ACS CENTRAL SCIENCE 2015; 1:504-509. [PMID: 26779566 PMCID: PMC4694623 DOI: 10.1021/acscentsci.5b00279] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Indexed: 05/21/2023]
Abstract
Many examples exist of biological self-assembled structures that restructure in response to external stimuli, then return to their previous state over a defined time scale, but most synthetic investigations so far have focused on systems that switch between states representing energetic minima upon stimulus application. Here we report an approach in which triphenylphosphine is used as a chemical fuel to maintain CuI-based self-assembled metallosupramolecular architectures for defined periods of time. This method was used to exert control over the threading and dethreading of the ring of a pseudorotaxane's axle, as well as to direct the uptake and release of a guest from a metal-organic host. Management of the amount of fuel and catalyst added allowed for time-dependent regulation of product concentration.
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25
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Stauber JM, Bloch ED, Vogiatzis KD, Zheng SL, Hadt RG, Hayes D, Chen LX, Gagliardi L, Nocera DG, Cummins CC. Pushing Single-Oxygen-Atom-Bridged Bimetallic Systems to the Right: A Cryptand-Encapsulated Co–O–Co Unit. J Am Chem Soc 2015; 137:15354-7. [DOI: 10.1021/jacs.5b09827] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Julia M. Stauber
- Department
of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Eric D. Bloch
- Department
of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department
of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Konstantinos D. Vogiatzis
- Department
of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Shao-Liang Zheng
- Department
of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Ryan G. Hadt
- Chemical
Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Dugan Hayes
- Chemical
Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Lin X. Chen
- Chemical
Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Laura Gagliardi
- Department
of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Daniel G. Nocera
- Department
of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Christopher C. Cummins
- Department
of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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26
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Farràs P, Di Giovanni C, Clifford JN, Palomares E, Llobet A. H2 generation and sulfide to sulfoxide oxidation with H2O and sunlight with a model photoelectrosynthesis cell. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.10.007] [Citation(s) in RCA: 16] [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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27
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Pastor A, Montilla F, Galindo A. Oxido- versus imido-transfer reactions in oxido–imido molybdenum(VI) complexes: A combined experimental and theoretical study. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.02.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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28
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Li J, Ryde U. Comparison of the Active-Site Design of Molybdenum Oxo-Transfer Enzymes by Quantum Mechanical Calculations. Inorg Chem 2014; 53:11913-24. [DOI: 10.1021/ic5010837] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jilai Li
- Department of Theoretical Chemistry, Chemical
Centre, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden
- State Key Laboratory of Theoretical and
Computational Chemistry, Institute of Theoretical Chemistry, Jilin University, Changchun 130023, People’s Republic of China
| | - Ulf Ryde
- Department of Theoretical Chemistry, Chemical
Centre, Lund University, P.O. Box 124, SE-221 00 Lund, Sweden
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29
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Garrett EC, Figg TM, Cundari TR. Impact of d-Orbital Occupation on Metal–Carbon Bond Functionalization. Inorg Chem 2014; 53:7789-98. [DOI: 10.1021/ic5015048] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- E. Chauncey Garrett
- Center for Catalytic Hydrocarbon Functionalization, Department of
Chemistry, and Center for Advanced Scientific Computing and Modeling
(CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017, United States
| | - Travis M. Figg
- Center for Catalytic Hydrocarbon Functionalization, Department of
Chemistry, and Center for Advanced Scientific Computing and Modeling
(CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017, United States
| | - Thomas R. Cundari
- Center for Catalytic Hydrocarbon Functionalization, Department of
Chemistry, and Center for Advanced Scientific Computing and Modeling
(CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017, United States
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30
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Ha Y, Tenderholt AL, Holm RH, Hedman B, Hodgson KO, Solomon EI. Sulfur K-edge X-ray absorption spectroscopy and density functional theory calculations on monooxo Mo(IV) and bisoxo Mo(VI) bis-dithiolenes: insights into the mechanism of oxo transfer in sulfite oxidase and its relation to the mechanism of DMSO reductase. J Am Chem Soc 2014; 136:9094-105. [PMID: 24884723 PMCID: PMC4073832 DOI: 10.1021/ja503316p] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Indexed: 12/25/2022]
Abstract
Sulfur K-edge X-ray absorption spectroscopy (XAS) and density functional theory (DFT) calculations have been used to determine the electronic structures of two complexes [Mo(IV)O(bdt)2](2-) and [Mo(VI)O2(bdt)2](2-) (bdt = benzene-1,2-dithiolate(2-)) that relate to the reduced and oxidized forms of sulfite oxidase (SO). These are compared with those of previously studied dimethyl sulfoxide reductase (DMSOr) models. DFT calculations supported by the data are extended to evaluate the reaction coordinate for oxo transfer to a phosphite ester substrate. Three possible transition states are found with the one at lowest energy, stabilized by a P-S interaction, in good agreement with experimental kinetics data. Comparison of both oxo transfer reactions shows that in DMSOr, where the oxo is transferred from the substrate to the metal ion, the oxo transfer induces electron transfer, while in SO, where the oxo transfer is from the metal site to the substrate, the electron transfer initiates oxo transfer. This difference in reactivity is related to the difference in frontier molecular orbitals (FMO) of the metal-oxo and substrate-oxo bonds. Finally, these experimentally related calculations are extended to oxo transfer by sulfite oxidase. The presence of only one dithiolene at the enzyme active site selectively activates the equatorial oxo for transfer, and allows facile structural reorganization during turnover.
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Affiliation(s)
- Yang Ha
- Department
of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Adam L. Tenderholt
- Department
of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Richard H. Holm
- Department
of Chemistry and Chemical Biology, Harvard
University, Cambridge, Massachusetts 02138, United States
| | - Britt Hedman
- Stanford
Synchrotron Radiation Lightsource, SLAC, Stanford University, Menlo Park, California 94025, United States
| | - Keith O. Hodgson
- Department
of Chemistry, Stanford University, Stanford, California 94305, United States
- Stanford
Synchrotron Radiation Lightsource, SLAC, Stanford University, Menlo Park, California 94025, United States
| | - Edward I. Solomon
- Department
of Chemistry, Stanford University, Stanford, California 94305, United States
- Stanford
Synchrotron Radiation Lightsource, SLAC, Stanford University, Menlo Park, California 94025, United States
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31
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Affiliation(s)
- Russ Hille
- Department of Biochemistry, University of California, Riverside, Riverside, California 92521, United States
| | - James Hall
- Department of Biochemistry, University of California, Riverside, Riverside, California 92521, United States
| | - Partha Basu
- Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, Pennsylvania 15282, United States
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32
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33
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Pardue DB, Mei J, Cundari TR, Gunnoe TB. Density Functional Theory Study of Oxygen-Atom Insertion into Metal–Methyl Bonds of Iron(II), Ruthenium(II), and Osmium(II) Complexes: Study of Metal-Mediated C–O Bond Formation. Inorg Chem 2014; 53:2968-75. [DOI: 10.1021/ic402759w] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Daniel B. Pardue
- Department
of Chemistry, Center for Advanced Scientific Computing and Modeling
(CASCaM), University of North Texas, Denton, Texas 76203, United States
| | - Jiajun Mei
- Department
of Chemistry, University of Virginia, McCormick Road,
P.O. Box 400319, Charlottesville, Virginia 22904-4319, United States
| | - Thomas R. Cundari
- Department
of Chemistry, Center for Advanced Scientific Computing and Modeling
(CASCaM), University of North Texas, Denton, Texas 76203, United States
| | - T. Brent Gunnoe
- Department
of Chemistry, University of Virginia, McCormick Road,
P.O. Box 400319, Charlottesville, Virginia 22904-4319, United States
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34
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Webb JR, Figg TM, Otten BM, Cundari TR, Gunnoe TB, Sabat M. Pt
II
and Rh
III
Hydrocarbyl Complexes Bearing Coordinated Oxygen Atom Delivery Reagents. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300434] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Joanna R. Webb
- Center for Catalytic Hydrocarbon Functionalization, Department of Chemistry, University of Virginia, McCormick Road, P. O. Box 400319, Charlottesville, VA 22904‐4319, USA, http://chem.virginia.edu/faculty‐research/faculty/t‐brent‐gunnoe/
| | - Travis M. Figg
- Department of Chemistry and Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, TX 76203‐5017, USA, http://chemistry.unt.edu/~cundari/group.html
| | - Brooke M. Otten
- Department of Chemistry and Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, TX 76203‐5017, USA, http://chemistry.unt.edu/~cundari/group.html
| | - Thomas R. Cundari
- Department of Chemistry and Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, TX 76203‐5017, USA, http://chemistry.unt.edu/~cundari/group.html
| | - T. Brent Gunnoe
- Center for Catalytic Hydrocarbon Functionalization, Department of Chemistry, University of Virginia, McCormick Road, P. O. Box 400319, Charlottesville, VA 22904‐4319, USA, http://chem.virginia.edu/faculty‐research/faculty/t‐brent‐gunnoe/
| | - Michal Sabat
- Nanoscale Materials Characterization Facility, Department of Materials Science and Engineering University of Virginia, Charlottesville, VA 22904, USA
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35
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Wang X, Peter S, Ullrich R, Hofrichter M, Groves JT. Driving Force for Oxygen‐Atom Transfer by Heme‐Thiolate Enzymes. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302137] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Xiaoshi Wang
- Department of Chemistry, Princeton University, Princeton, NJ 08544 (USA)
| | - Sebastian Peter
- Department of Bio‐ and Environmental Sciences, International Graduate School of Zittau, 02763 Zittau (Germany)
| | - René Ullrich
- Department of Bio‐ and Environmental Sciences, International Graduate School of Zittau, 02763 Zittau (Germany)
| | - Martin Hofrichter
- Department of Bio‐ and Environmental Sciences, International Graduate School of Zittau, 02763 Zittau (Germany)
| | - John T. Groves
- Department of Chemistry, Princeton University, Princeton, NJ 08544 (USA)
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36
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Wang X, Peter S, Ullrich R, Hofrichter M, Groves JT. Driving force for oxygen-atom transfer by heme-thiolate enzymes. Angew Chem Int Ed Engl 2013; 52:9238-41. [PMID: 23825007 DOI: 10.1002/anie.201302137] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 04/18/2013] [Indexed: 11/06/2022]
Affiliation(s)
- Xiaoshi Wang
- Department of Chemistry, Princeton University, Princeton, NJ 08544, USA
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37
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Liu P, Nicholas KM. Mechanism of Sulfite-Driven, MeReO3-Catalyzed Deoxydehydration of Glycols. Organometallics 2013. [DOI: 10.1021/om301251z] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Peng Liu
- Departments
of Chemistry and Biochemistry, University of California at Los Angeles, Los Angeles, California,
United States
| | - Kenneth M. Nicholas
- Departments of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma
73019, United States
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38
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Why is the molybdenum-substituted tungsten-dependent formaldehyde ferredoxin oxidoreductase not active? A quantum chemical study. J Biol Inorg Chem 2013; 18:175-181. [PMID: 23183892 DOI: 10.1007/s00775-012-0961-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2012] [Accepted: 11/13/2012] [Indexed: 01/12/2023]
Abstract
Formaldehyde ferredoxin oxidoreductase is a tungsten-dependent enzyme that catalyzes the oxidative degradation of formaldehyde to formic acid. The molybdenum ion can be incorporated into the active site to displace the tungsten ion, but is without activity. Density functional calculations have been employed to understand the incapacitation of the enzyme caused by molybdenum substitution. The calculations show that the enzyme with molybdenum (Mo-FOR) has higher redox potential than that with tungsten, which makes the formation of the Mo(VI)=O complex endothermic by 14 kcal/mol. Following our previously suggested mechanism for this enzyme, the formaldehyde substrate oxidation was also investigated for Mo-FOR using the same quantum-mechanics-only model, except for the displacement of tungsten by molybdenum. The calculations demonstrate that formaldehyde oxidation occurs via a sequential two-step mechanism. Similarly to the tungsten-catalyzed reaction, the Mo(VI)=O species performs the nucleophilic attack on the formaldehyde carbon, followed by proton transfer in concert with two-electron reduction of the metal center. The first step is rate-limiting, with a total barrier of 28.2 kcal/mol. The higher barrier is mainly due to the large energy penalty for the formation of the Mo(VI)=O species.
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39
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Funaioli T, Marchetti F, Pampaloni G, Zacchini S. Ligand-interchange reactions between M(iv) (M = Ti, V) oxide bis-acetylacetonates and halides of high-valent group 4 and 5 metals. A synthetic and electrochemical study. Dalton Trans 2013; 42:14168-77. [DOI: 10.1039/c3dt51378e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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40
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Pouy MJ, Milczek EM, Figg TM, Otten BM, Prince BM, Gunnoe TB, Cundari TR, Groves JT. Flavin-Catalyzed Insertion of Oxygen into Rhenium–Methyl Bonds. J Am Chem Soc 2012; 134:12920-3. [DOI: 10.1021/ja3054139] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Mark J. Pouy
- Department of Chemistry, University of Virginia, 409 McCormick Road, Charlottesville,
Virginia 22904, United States
| | - Erika M. Milczek
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544,
United States
| | - Travis M. Figg
- Center for
Advanced Scientific
Computing and Modeling (CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017,
United States
| | - Brooke M. Otten
- Center for
Advanced Scientific
Computing and Modeling (CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017,
United States
| | - Bruce M. Prince
- Center for
Advanced Scientific
Computing and Modeling (CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017,
United States
| | - T. Brent Gunnoe
- Department of Chemistry, University of Virginia, 409 McCormick Road, Charlottesville,
Virginia 22904, United States
| | - Thomas R. Cundari
- Center for
Advanced Scientific
Computing and Modeling (CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017,
United States
| | - John T. Groves
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544,
United States
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41
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Figg TM, Cundari TR. Mechanistic Study of Oxy Insertion into Nickel–Carbon Bonds with Nitrous Oxide. Organometallics 2012. [DOI: 10.1021/om300270x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Travis M. Figg
- Center for Catalytic Hydrocarbon
Functionalization, Department of
Chemistry, and Center
for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, 1155 Union Circle, #305070,
Denton, Texas 76203-5017, United States
| | - Thomas R. Cundari
- Center for Catalytic Hydrocarbon
Functionalization, Department of
Chemistry, and Center
for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, 1155 Union Circle, #305070,
Denton, Texas 76203-5017, United States
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42
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O’Halloran KP, Zhao C, Ando NS, Schultz AJ, Koetzle TF, Piccoli PMB, Hedman B, Hodgson KO, Bobyr E, Kirk ML, Knottenbelt S, Depperman EC, Stein B, Anderson TM, Cao R, Geletii YV, Hardcastle KI, Musaev DG, Neiwert WA, Fang X, Morokuma K, Wu S, Kögerler P, Hill CL. Revisiting the Polyoxometalate-Based Late-Transition-Metal-Oxo Complexes: The “Oxo Wall” Stands. Inorg Chem 2012; 51:7025-31. [DOI: 10.1021/ic2008914] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kevin P. O’Halloran
- Department of Chemistry, Emory
University, Atlanta, Georgia 30322, United States
| | - Chongchao Zhao
- Department of Chemistry, Emory
University, Atlanta, Georgia 30322, United States
| | - Nicole S. Ando
- Department of Chemistry, Emory
University, Atlanta, Georgia 30322, United States
| | - Arthur J. Schultz
- Intense Pulsed Neutron Source,
Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Thomas F. Koetzle
- Intense Pulsed Neutron Source,
Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Paula M. B. Piccoli
- Intense Pulsed Neutron Source,
Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - Britt Hedman
- Department of Chemistry and Stanford
Synchrotron Radiation Lightsource, SLAC, Stanford University, Stanford,
California 94305, United Statess
| | - Keith O. Hodgson
- Department of Chemistry and Stanford
Synchrotron Radiation Lightsource, SLAC, Stanford University, Stanford,
California 94305, United Statess
| | - Elena Bobyr
- Department of Chemistry and Stanford
Synchrotron Radiation Lightsource, SLAC, Stanford University, Stanford,
California 94305, United Statess
| | - Martin L. Kirk
- Department of Chemistry and
Chemical Biology, The University of New Mexico, Albuquerque, New Mexico
87131-0001, United States
| | - Sushilla Knottenbelt
- Department of Chemistry and
Chemical Biology, The University of New Mexico, Albuquerque, New Mexico
87131-0001, United States
| | - Ezra C. Depperman
- Department of Chemistry and
Chemical Biology, The University of New Mexico, Albuquerque, New Mexico
87131-0001, United States
| | - Benjamin Stein
- Department of Chemistry and
Chemical Biology, The University of New Mexico, Albuquerque, New Mexico
87131-0001, United States
| | - Travis M. Anderson
- Department of Chemistry, Emory
University, Atlanta, Georgia 30322, United States
| | - Rui Cao
- Department of Chemistry, Emory
University, Atlanta, Georgia 30322, United States
| | - Yurii V. Geletii
- Department of Chemistry, Emory
University, Atlanta, Georgia 30322, United States
| | | | - Djamaladdin G. Musaev
- Cherry L. Emerson Center for
Scientific Computation, Emory University, Atlanta, Georgia 30322,
United States
| | - Wade A. Neiwert
- Department of Chemistry, Emory
University, Atlanta, Georgia 30322, United States
| | - Xikui Fang
- Department of Chemistry, Emory
University, Atlanta, Georgia 30322, United States
| | - Keiji Morokuma
- Department of Chemistry, Emory
University, Atlanta, Georgia 30322, United States
- Cherry L. Emerson Center for
Scientific Computation, Emory University, Atlanta, Georgia 30322,
United States
| | - Shaoxiong Wu
- Department of Chemistry, Emory
University, Atlanta, Georgia 30322, United States
| | - Paul Kögerler
- Ames Laboratory, Iowa State University,
Ames, Iowa 50011, United States
| | - Craig L. Hill
- Department of Chemistry, Emory
University, Atlanta, Georgia 30322, United States
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43
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Tenderholt AL, Hodgson KO, Hedman B, Holm RH, Solomon EI. Substrate and metal control of barrier heights for oxo transfer to Mo and W bis-dithiolene sites. Inorg Chem 2012; 51:3436-42. [PMID: 22372518 DOI: 10.1021/ic2020397] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Reaction coordinates for oxo transfer from the substrates Me(3)NO, Me(2)SO, and Me(3)PO to the biologically relevant Mo(IV) bis-dithiolene complex [Mo(OMe)(mdt)(2)](-) where mdt = 1,2-dimethyl-ethene-1,2-dithiolate(2-), and from Me(2)SO to the analogous W(IV) complex, have been calculated using density functional theory. In each case, the reaction first proceeds through a transition state (TS1) to an intermediate with substrate weakly bound, followed by a second transition state (TS2) around which breaking of the substrate X-O bond begins. By analyzing the energetic contributions to each barrier, it is shown that the nature of the substrate and metal determines which transition state controls the rate-determining step of the reaction.
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Affiliation(s)
- Adam L Tenderholt
- Department of Chemistry, Stanford University, Stanford, California 94305, USA
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44
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Kopec JA, Shekar S, Brown SN. Molybdenum(VI) Complexes of a 2,2′-Biphenyl-bridged Bis(amidophenoxide): Competition between Metal–Ligand and Metal–Amidophenoxide π Bonding. Inorg Chem 2012; 51:1239-50. [DOI: 10.1021/ic201736h] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Jason A. Kopec
- Department of Chemistry and Biochemistry, 251 Nieuwland
Science Hall, University of Notre Dame,
Notre Dame, Indiana 46556-5670, United States
| | - Sukesh Shekar
- Department of Chemistry and Biochemistry, 251 Nieuwland
Science Hall, University of Notre Dame,
Notre Dame, Indiana 46556-5670, United States
| | - Seth N. Brown
- Department of Chemistry and Biochemistry, 251 Nieuwland
Science Hall, University of Notre Dame,
Notre Dame, Indiana 46556-5670, United States
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45
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Umile TP, Wang D, Groves JT. Dissection of the Mechanism of Manganese Porphyrin-Catalyzed Chlorine Dioxide Generation. Inorg Chem 2011; 50:10353-62. [DOI: 10.1021/ic201430v] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Thomas P. Umile
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Dong Wang
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - John T. Groves
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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46
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Scepaniak JJ, Margarit CG, Harvey JN, Smith JM. Nitrogen Atom Transfer from Iron(IV) Nitrido Complexes: A Dual-Nature Transition State for Atom Transfer. Inorg Chem 2011; 50:9508-17. [DOI: 10.1021/ic201190c] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jeremiah J. Scepaniak
- Department of Chemistry and Biochemistry, New Mexico State University, MSC 3C, Las Cruces New Mexico 88003, United States
| | - Charles G. Margarit
- Department of Chemistry and Biochemistry, New Mexico State University, MSC 3C, Las Cruces New Mexico 88003, United States
| | - Jeremy N. Harvey
- Centre for Computational Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom
| | - Jeremy M. Smith
- Department of Chemistry and Biochemistry, New Mexico State University, MSC 3C, Las Cruces New Mexico 88003, United States
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47
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Cai X, Majumdar S, Fortman GC, Frutos LM, Temprado M, Clough CR, Cummins CC, Germain ME, Palluccio T, Rybak-Akimova EV, Captain B, Hoff CD. Thermodynamic, Kinetic, and Mechanistic Study of Oxygen Atom Transfer from Mesityl Nitrile Oxide to Phosphines and to a Terminal Metal Phosphido Complex. Inorg Chem 2011; 50:9620-30. [DOI: 10.1021/ic2013599] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaochen Cai
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables Florida 33021, United States
| | - Subhojit Majumdar
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables Florida 33021, United States
| | - George C. Fortman
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables Florida 33021, United States
| | - Luis Manuel Frutos
- Department of Physical Chemistry, Universidad de Alcalá, Ctra. Madrid-Barcelona Km. 33,600, Madrid, 28871, Spain
| | - Manuel Temprado
- Department of Physical Chemistry, Universidad de Alcalá, Ctra. Madrid-Barcelona Km. 33,600, Madrid, 28871, Spain
| | - Christopher R. Clough
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Christopher C. Cummins
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Meaghan E. Germain
- Department of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts 02155, United States
| | - Taryn Palluccio
- Department of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts 02155, United States
| | - Elena V. Rybak-Akimova
- Department of Chemistry, Tufts University, 62 Talbot Avenue, Medford, Massachusetts 02155, United States
| | - Burjor Captain
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables Florida 33021, United States
| | - Carl D. Hoff
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables Florida 33021, United States
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48
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O’Reilly ME, Del Castillo TJ, Falkowski JM, Ramachandran V, Pati M, Correia MC, Abboud KA, Dalal NS, Richardson DE, Veige AS. Autocatalytic O2 Cleavage by an OCO3– Trianionic Pincer CrIII Complex: Isolation and Characterization of the Autocatalytic Intermediate [CrIV]2(μ-O) Dimer. J Am Chem Soc 2011; 133:13661-73. [DOI: 10.1021/ja2050474] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Matthew E. O’Reilly
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Trevor J. Del Castillo
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Joseph M. Falkowski
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Vasanth Ramachandran
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Mekhala Pati
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Marie C. Correia
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Khalil A. Abboud
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Naresh S. Dalal
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - David E. Richardson
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Adam S. Veige
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
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49
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Lippert CA, Hardcastle KI, Soper JD. Harnessing Redox-Active Ligands for Low-Barrier Radical Addition at Oxorhenium Complexes. Inorg Chem 2011; 50:9864-78. [DOI: 10.1021/ic200923q] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Cameron A. Lippert
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - Kenneth I. Hardcastle
- X-ray Crystallography Center, Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States
| | - Jake D. Soper
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
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50
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Holm RH, Solomon EI, Majumdar A, Tenderholt A. Comparative molecular chemistry of molybdenum and tungsten and its relation to hydroxylase and oxotransferase enzymes. Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2010.10.017] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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