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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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2
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Prakash J, Sheng Y, Draksharapu A, Klein JEMN, Cramer CJ, Que L. Facile Conversion of
syn
‐[Fe
IV
(O)(TMC)]
2+
into the
anti
Isomer via Meunier's Oxo–Hydroxo Tautomerism Mechanism. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201811454] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jai Prakash
- Department of Chemistry and Center for Metals in Biocatalysis University of Minnesota Minneapolis MN 55455 USA
- Current address: Department of Physical and Environmental Sciences Texas A & M University-Corpus Christi Corpus Christi TX 78412 USA
| | - Yuan Sheng
- Department of Chemistry and Center for Metals in Biocatalysis University of Minnesota Minneapolis MN 55455 USA
| | - Apparao Draksharapu
- Department of Chemistry and Center for Metals in Biocatalysis University of Minnesota Minneapolis MN 55455 USA
| | - Johannes E. M. N. Klein
- Department of Chemistry and Center for Metals in Biocatalysis University of Minnesota Minneapolis MN 55455 USA
- Molecular Inorganic Chemistry Stratingh Institute for Chemistry Faculty of Science and Engineering University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Christopher J. Cramer
- Department of Chemistry and Center for Metals in Biocatalysis University of Minnesota Minneapolis MN 55455 USA
- Chemical Theory Center and Minnesota Supercomputing Institute University of Minnesota Minneapolis MN 55455-0431 USA
| | - Lawrence Que
- Department of Chemistry and Center for Metals in Biocatalysis University of Minnesota Minneapolis MN 55455 USA
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3
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Prakash J, Sheng Y, Draksharapu A, Klein JEMN, Cramer CJ, Que L. Facile Conversion of syn-[Fe IV (O)(TMC)] 2+ into the anti Isomer via Meunier's Oxo-Hydroxo Tautomerism Mechanism. Angew Chem Int Ed Engl 2019; 58:1995-1999. [PMID: 30556289 PMCID: PMC6470793 DOI: 10.1002/anie.201811454] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 11/27/2018] [Indexed: 12/05/2022]
Abstract
The syn and anti isomers of [FeIV (O)(TMC)]2+ (TMC=tetramethylcyclam) represent the first isolated pair of synthetic non-heme oxoiron(IV) complexes with identical ligand topology, differing only in the position of the oxo unit bound to the iron center. Both isomers have previously been characterized. Reported here is that the syn isomer [FeIV (Osyn )(TMC)(NCMe)]2+ (2) converts into its anti form [FeIV (Oanti )(TMC)(NCMe)]2+ (1) in MeCN, an isomerization facilitated by water and monitored most readily by 1 H NMR and Raman spectroscopy. Indeed, when H218 O is introduced to 2, the nascent 1 becomes 18 O-labeled. These results provide compelling evidence for a mechanism involving direct binding of a water molecule trans to the oxo atom in 2 with subsequent oxo-hydroxo tautomerism for its incorporation as the oxo atom of 1. The nonplanar nature of the TMC supporting ligand makes this isomerization an irreversible transformation, unlike for their planar heme counterparts.
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Affiliation(s)
- Jai Prakash
- Department of Chemistry and Center for Metals in BiocatalysisUniversity of MinnesotaMinneapolisMN55455USA
- Current address: Department of Physical and Environmental SciencesTexas A & M University-Corpus ChristiCorpus ChristiTX78412USA
| | - Yuan Sheng
- Department of Chemistry and Center for Metals in BiocatalysisUniversity of MinnesotaMinneapolisMN55455USA
| | - Apparao Draksharapu
- Department of Chemistry and Center for Metals in BiocatalysisUniversity of MinnesotaMinneapolisMN55455USA
| | - Johannes E. M. N. Klein
- Department of Chemistry and Center for Metals in BiocatalysisUniversity of MinnesotaMinneapolisMN55455USA
- Molecular Inorganic ChemistryStratingh Institute for ChemistryFaculty of Science and Engineering University of GroningenNijenborgh 49747AGGroningenThe Netherlands
| | - Christopher J. Cramer
- Department of Chemistry and Center for Metals in BiocatalysisUniversity of MinnesotaMinneapolisMN55455USA
- Chemical Theory Center and Minnesota Supercomputing InstituteUniversity of MinnesotaMinneapolisMN55455-0431USA
| | - Lawrence Que
- Department of Chemistry and Center for Metals in BiocatalysisUniversity of MinnesotaMinneapolisMN55455USA
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4
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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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5
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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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6
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Guan X, Chan SLF, Che CM. A Highly Oxidizing and Isolable Oxoruthenium(V) Complex [RuV(N4O)(O)]2+: Electronic Structure, Redox Properties, and Oxidation Reactions Investigated by DFT Calculations. Chem Asian J 2013; 8:2046-56. [DOI: 10.1002/asia.201300458] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Indexed: 11/11/2022]
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7
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Lai W, Li C, Chen H, Shaik S. Hydrogen-abstraction reactivity patterns from A to Y: the valence bond way. Angew Chem Int Ed Engl 2012; 51:5556-78. [PMID: 22566272 DOI: 10.1002/anie.201108398] [Citation(s) in RCA: 212] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2011] [Indexed: 01/06/2023]
Abstract
"Give us insight, not numbers" was Coulson's admonition to theoretical chemists. This Review shows that the valence bond (VB)-model provides insights and some good numbers for one of the fundamental reactions in nature, the hydrogen-atom transfer (HAT). The VB model is applied to over 50 reactions from the simplest H + H(2) process, to P450 hydroxylations and H-transfers among closed-shell molecules; for each system the barriers are estimated from raw data. The model creates a bridge to the Marcus equation and shows that H-atom abstraction by a closed-shell molecule requires a higher barrier owing to the additional promotion energy needed to prepare the abstractor for H-abstraction. Under certain conditions, a closed-shell abstractor can bypass this penalty through a proton-coupled electron transfer (PCET) mechanism. The VB model links the HAT and PCET mechanisms conceptually and shows the consequences that this linking has for H-abstraction reactivity.
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Affiliation(s)
- Wenzhen Lai
- Institute of Chemistry and the Lise-Meitner-Minerva Center for Computational Quantum Chemistry, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel
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8
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Lai W, Li C, Chen H, Shaik S. Wasserstoffatomabstraktion von A bis Y: Reaktionsmuster nach der Valenzstrukturtheorie. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201108398] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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9
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Saravanan N, Palaniandavar M. Manganese(II) complexes of pyridyl-appended diazacyclo-alkanes: Effect of ligand backbone ring size on catalytic olefin oxidation. Inorganica Chim Acta 2012. [DOI: 10.1016/j.ica.2012.01.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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10
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Cong Z, Kurahashi T, Fujii H. Oxidation of chloride and subsequent chlorination of organic compounds by oxoiron(IV) porphyrin π-cation radicals. Angew Chem Int Ed Engl 2011; 50:9935-9. [PMID: 21913293 DOI: 10.1002/anie.201104461] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2011] [Indexed: 11/11/2022]
Abstract
Ironing it out: oxoiron(IV) porphyrin π-cation radical complexes serve as models for the oxidation of Cl(-) into an active chlorinating reagent that chlorinates various organic compounds. Evidence suggests that Cl(-) is oxidized to Cl(2) via Cl·. The mechanism involving either direct electron transfer or iron(III) hypochlorite formation, and then homolysis of the Cl-O bond is discussed.
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Affiliation(s)
- Zhiqi Cong
- Institute for Molecular Science, Myodaiji, Okazaki, Japan
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11
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Cong Z, Kurahashi T, Fujii H. Oxidation of Chloride and Subsequent Chlorination of Organic Compounds by Oxoiron(IV) Porphyrin π-Cation Radicals. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201104461] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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12
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Lanucara F, Crestoni ME. Biomimetic Oxidation Reactions of a Naked Manganese(V)-Oxo Porphyrin Complex. Chemistry 2011; 17:12092-100. [DOI: 10.1002/chem.201101432] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2011] [Indexed: 12/14/2022]
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13
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Umile TP, Groves JT. Catalytic generation of chlorine dioxide from chlorite using a water-soluble manganese porphyrin. Angew Chem Int Ed Engl 2010; 50:695-8. [PMID: 21226156 DOI: 10.1002/anie.201004482] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2010] [Revised: 10/22/2010] [Indexed: 11/08/2022]
Affiliation(s)
- Thomas P Umile
- Department of Chemistry, Princeton University, Princeton, NJ 08544, USA
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Umile TP, Groves JT. Catalytic Generation of Chlorine Dioxide from Chlorite Using a Water-Soluble Manganese Porphyrin. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201004482] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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15
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Sawant SC, Wu X, Cho J, Cho KB, Kim SH, Seo MS, Lee YM, Kubo M, Ogura T, Shaik S, Nam W. Water as an Oxygen Source: Synthesis, Characterization, and Reactivity Studies of a Mononuclear Nonheme Manganese(IV) Oxo Complex. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201000819] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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16
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Sawant SC, Wu X, Cho J, Cho KB, Kim SH, Seo MS, Lee YM, Kubo M, Ogura T, Shaik S, Nam W. Water as an Oxygen Source: Synthesis, Characterization, and Reactivity Studies of a Mononuclear Nonheme Manganese(IV) Oxo Complex. Angew Chem Int Ed Engl 2010; 49:8190-4. [DOI: 10.1002/anie.201000819] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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17
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Arunkumar C, Lee YM, Lee JY, Fukuzumi S, Nam W. Hydrogen-Atom Abstraction Reactions by Manganese(V)- and Manganese(IV)-Oxo Porphyrin Complexes in Aqueous Solution. Chemistry 2009; 15:11482-9. [DOI: 10.1002/chem.200901362] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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18
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Mahammed A, Gross Z. Iron and manganese corroles are potent catalysts for the decomposition of peroxynitrite. Angew Chem Int Ed Engl 2007; 45:6544-7. [PMID: 16960906 DOI: 10.1002/anie.200601399] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Atif Mahammed
- Department of Chemistry, Technion-Israel Institute of Technology, Haifa 32000, Israel
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19
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Mahammed A, Gross Z. Iron and Manganese Corroles Are Potent Catalysts for the Decomposition of Peroxynitrite. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200601399] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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20
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Song WJ, Sun YJ, Choi SK, Nam W. Mechanistic Insights into the Reversible Formation of Iodosylarene-Iron Porphyrin Complexes in the Reactions of Oxoiron(IV) Porphyrin π-Cation Radicals and Iodoarenes: Equilibrium, Epoxidizing Intermediate, and Oxygen Exchange. Chemistry 2006; 12:130-7. [PMID: 16247826 DOI: 10.1002/chem.200500128] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
We have shown previously that iodosylbenzene-iron(III) porphyrin intermediates (2) are generated in the reactions of oxoiron(IV) porphyrin pi-cation radicals (1) and iodobenzene (PhI), that 1 and 2 are at equilibrium in the presence of PhI, and that the epoxidation of olefins by 2 affords high yields of epoxide products. In the present work, we report detailed mechanistic studies on the nature of the equilibrium between 1 and 2 in the presence of iodoarenes (ArI), the determination of reactive species responsible for olefin epoxidation when two intermediates (i.e., 1 and 2) are present in a reaction solution, and the fast oxygen exchange between 1 and H(2)18O in the presence of ArI. In the first part, we have provided strong evidence that 1 and 2 are indeed at equilibrium and that the equilibrium is controlled by factors such as the electronic nature of iron porphyrins, the electron richness of ArI, and the concentration of ArI. Secondly, we have demonstrated that 1 is the sole active oxidant in olefin epoxidation when 1 and 2 are present concurrently in a reaction solution. Finally, we have shown that the presence of ArI in a reaction solution containing 1 and H(2)18O facilitates the oxygen exchange between the oxo group of 1 and H(2)18O and that the oxygen exchange is markedly influenced by factors such as ArI incubation time, the amounts of ArI and H(2)18O used, and the electronic nature of ArI. The latter results are rationalized by the formation of an undetectable amount of 2 from the reaction of 1 and ArI through equilibrium that leads to a fast oxygen exchange between 2 and H(2)18O.
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Affiliation(s)
- Woon Ju Song
- Department of Chemistry, Division of Nano Sciences and Center for Biomimetic Systems, Ewha Womans University, Seoul 120-750, Korea
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21
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Albin V, Bedioui F. First electrochemical evidence of existence of an oxomanganese(V) porphyrin intermediate in the reaction of manganese(III) porphyrin and hydrogen peroxide as a model of enzyme mimetics. Electrochem commun 2003. [DOI: 10.1016/s1388-2481(03)00004-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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22
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Nam W, Kim I, Lim MH, Choi HJ, Lee JS, Jang HG. Isolation of an oxomanganese(V) porphyrin intermediate in the reaction of a manganese(III) porphyrin complex and H2O2 in aqueous solution. Chemistry 2002; 8:2067-71. [PMID: 11981891 DOI: 10.1002/1521-3765(20020503)8:9<2067::aid-chem2067>3.0.co;2-v] [Citation(s) in RCA: 129] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The reaction of [Mn(TF(4)TMAP)](CF(3)SO(3))(5) (TF(4)TMAP=meso-tetrakis(2,3,5,6-tetrafluoro-N,N,N-trimethyl-4-aniliniumyl)porphinato dianion) with H(2)O(2) (2 equiv) at pH 10.5 and 0 degrees C yielded an oxomanganese(V) porphyrin complex 1 in aqueous solution, whereas an oxomanganese(IV) porphyrin complex 2 was generated in the reactions of tert-alkyl hydroperoxides such as tert-butyl hydroperoxide and 2-methyl-1-phenyl-2-propyl hydroperoxide. Complex 1 was capable of epoxidizing olefins and exchanging its oxygen with H(2) (18)O, whereas 2 did not epoxidize olefins. From the reactions of [Mn(TF(4)TMAP)](5+) with various oxidants in the pH range 3-11, the O-O bond cleavage of hydroperoxides was found to be sensitive to the hydroperoxide substituent and the pH of the reaction solution. Whereas the O-O bond of hydroperoxides containing an electron-donating tert-alkyl group is cleaved homolytically, an electron-withdrawing substituent such as an acyl group in m-chloroperoxybenzoic acid (m-CPBA) facilitates O-O bond heterolysis. The mechanism of the O-O bond cleavage of H(2)O(2) depends on the pH of the reaction solution: O-O bond homolysis prevails at low pH and O-O bond heterolysis becomes a predominant pathway at high pH. The effect of pH on (18)O incorporation from H(2) (18)O into oxygenated products was examined over a wide pH range, by carrying out the epoxidation of carbamazepine (CBZ) with [Mn(TF(4)TMAP)](5+) and KHSO(5) in buffered H(2) (18)O solutions. A high proportion of (18)O was incorporated into the CBZ-10,11-oxide product at all pH values but this proportion was not affected significantly by the pH of the reaction solution.
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Affiliation(s)
- Wonwoo Nam
- Department of Chemistry and Division of Molecular Life Sciences, Ewha Womans University Seoul, Korea.
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de Visser SP, Ogliaro LF, Gross Z, Shaik S. What is the difference between the manganese porphyrin and corrole analogues of cytochrome P450's compound I? Chemistry 2001; 7:4954-60. [PMID: 11763464 DOI: 10.1002/1521-3765(20011119)7:22<4954::aid-chem4954>3.0.co;2-u] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Density functional calculations on oxo-manganese complexes of corrole (1) and porphyrin (2 and 3) show a fundamental difference. The ground state of I is the singlet manganese(V) state, 1A(MnV), in which corrole is a closed shell. In contrast, 2 and 3 have high-spin manganese(IV) states, 1A1u and 3A2u respectively. This difference and the state ordering for each system are rationalized based on the competition between the intrinsic tendency of manganese to prefer high-spin electronic configurations, vis-à-vis the general tendency to prefer double occupancy in the low-lying orbitals. The outcome of this competition is determined primarily by the identity of the macrocycle, corrole versus porphyrin. Corrole with a small cavity holds the MnO moiety with a high off-plane displacement, and thereby prefers the low-spin state. On the other hand, porphyrin with the wider cavity holds the MnO moiety closer to the plane, and thereby prefers high-spin states.
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Affiliation(s)
- S P de Visser
- Department of Organic Chemistry and The Lise Meitner-Minerva Center for Computational Chemistry, The Hebrew University of Jerusalem, Israel
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