1
|
Comba P, Löhr A, Pfaff F, Ray K. Redox Potentials of High‐Valent Iron‐, Cobalt‐, and Nickel‐Oxido Complexes: Evidence for Exchange Enhanced Reactivity. Isr J Chem 2020. [DOI: 10.1002/ijch.202000038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Peter Comba
- Universität Heidelberg Anorganisch-Chemisches Institut, INF 270 D-69120 Heidelberg Germany
- Universität Heidelberg Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR) D-69120 Heidelberg Germany
| | - Anna‐Maria Löhr
- Universität Heidelberg Anorganisch-Chemisches Institut, INF 270 D-69120 Heidelberg Germany
| | - Florian Pfaff
- Department of Chemistry Humboldt-Universität zu Berlin Brook-Taylor-Strasse 2 Berlin Germany 12489
| | - Kallol Ray
- Department of Chemistry Humboldt-Universität zu Berlin Brook-Taylor-Strasse 2 Berlin Germany 12489
| |
Collapse
|
2
|
Comba P, Fukuzumi S, Koke C, Martin B, Löhr AM, Straub J. A Bispidine Iron(IV)-Oxo Complex in the Entatic State. Angew Chem Int Ed Engl 2016; 55:11129-33. [PMID: 27466945 DOI: 10.1002/anie.201605099] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Revised: 06/30/2016] [Indexed: 11/10/2022]
Abstract
For a series of Fe(IV) =O complexes with tetra- and pentadentate bispidine ligands, the correlation of their redox potentials with reactivity, involving a variety of substrates for alkane hydroxylation (HAT), alkene epoxidation, and phosphine and thioether oxidation (OAT) are reported. The redox potentials span approximately 350 mV and the reaction rates over 8 orders of magnitude. From the experimental data and in comparison with published studies it emerges that electron transfer and the driving force are of major importance, and this is also supported by the DFT-based computational analysis. The striking difference of reactivity of two isomeric systems with pentadentate bispidines is found to be due to a destabilization of the S=1 ground state of one of the ferryl isomers, and this is supported by the experimentally determined redox potentials and published stability constants with a series of first-row transition metal ions with these two isomeric ligands.
Collapse
Affiliation(s)
- Peter Comba
- Universität Heidelberg, Anorganisch-Chemisches Institut und Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR), INF 270, 69120, Heidelberg, Germany.
| | - Shunichi Fukuzumi
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul, 120-750, Korea. .,Faculty of Science and Engineering, Meijo University, Nagoya, Aichi, 468-8502, Japan.
| | - Carsten Koke
- Universität Heidelberg, Anorganisch-Chemisches Institut und Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR), INF 270, 69120, Heidelberg, Germany
| | - Bodo Martin
- Universität Heidelberg, Anorganisch-Chemisches Institut und Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR), INF 270, 69120, Heidelberg, Germany
| | - Anna-Maria Löhr
- Universität Heidelberg, Anorganisch-Chemisches Institut und Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR), INF 270, 69120, Heidelberg, Germany
| | - Johannes Straub
- Universität Heidelberg, Anorganisch-Chemisches Institut und Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR), INF 270, 69120, Heidelberg, Germany
| |
Collapse
|
3
|
Comba P, Fukuzumi S, Koke C, Martin B, Löhr AM, Straub J. A Bispidine Iron(IV)-Oxo Complex in the Entatic State. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605099] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Peter Comba
- Universität Heidelberg; Anorganisch-Chemisches Institut und Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR), INF 270; 69120 Heidelberg Germany
| | - Shunichi Fukuzumi
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 120-750 Korea
- Faculty of Science and Engineering; Meijo University; Nagoya Aichi 468-8502 Japan
| | - Carsten Koke
- Universität Heidelberg; Anorganisch-Chemisches Institut und Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR), INF 270; 69120 Heidelberg Germany
| | - Bodo Martin
- Universität Heidelberg; Anorganisch-Chemisches Institut und Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR), INF 270; 69120 Heidelberg Germany
| | - Anna-Maria Löhr
- Universität Heidelberg; Anorganisch-Chemisches Institut und Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR), INF 270; 69120 Heidelberg Germany
| | - Johannes Straub
- Universität Heidelberg; Anorganisch-Chemisches Institut und Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR), INF 270; 69120 Heidelberg Germany
| |
Collapse
|
4
|
Zapata-Rivera J, Caballol R, Calzado CJ, Liakos DG, Neese F. On the reaction mechanism of the complete intermolecular O2 transfer between mononuclear nickel and manganese complexes with macrocyclic ligands. Chemistry 2014; 20:13296-304. [PMID: 25179780 DOI: 10.1002/chem.201403233] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Indexed: 11/07/2022]
Abstract
The recently described intermolecular O2 transfer between the side-on Ni-O2 complex [(12-TMC)Ni-O2](+) and the manganese complex [(14-TMC)Mn](2+), where 12-TMC and 14-TMC are 12- and 14-membered macrocyclic ligands, 12-TMC=1,4,7,10-tetramethyl-1,4,7,10-tetraazacyclododecane and 14-TMC=1,4,8,11-tetramethyl-1,4,8,11-tetraazacyclotetradecane, is studied by means of DFT methods. B3LYP calculations including long-range corrections and solvent effects are performed to elucidate the mechanism. The potential energy surfaces (PESs) compatible with different electronic states of the reactants have been analyzed. The calculations confirm a two-step reaction, with a first rate-determining bimolecular step and predict the exothermic character of the global process. The relative stability of the products and the reverse barrier are in line with the fact that no reverse reaction is experimentally observed. An intermediate with a μ-η(1):η(1)-O2 coordination and two transition states are identified on the triplet PES, slightly below the corresponding stationary points of the quintet PES, suggesting an intersystem crossing before the first transition state. The calculated activation parameters and the relative energies of the two transition sates and the products are in very good agreement with the experimental data. The calculations suggest that a superoxide anion is transferred during the reaction.
Collapse
Affiliation(s)
- Jhon Zapata-Rivera
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, Marcel⋅lí Domingo, s/n, 43007 Tarragona (Spain); Present address: Facultad de Ingeniería, Corporación Universidad de la Costa, Calle 58 # 55-66, Barranquilla (Colombia)
| | | | | | | | | |
Collapse
|
5
|
Company A, Prat I, Frisch JR, Ballesté RM, Güell M, Juhász G, Ribas X, Münck E, Luis JM, Que L, Costas M. Modeling the cis-oxo-labile binding site motif of non-heme iron oxygenases: water exchange and oxidation reactivity of a non-heme iron(IV)-oxo compound bearing a tripodal tetradentate ligand. Chemistry 2011; 17:1622-34. [PMID: 21268165 PMCID: PMC3097279 DOI: 10.1002/chem.201002297] [Citation(s) in RCA: 96] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2010] [Indexed: 11/11/2022]
Abstract
The spectroscopic and chemical characterization of a new synthetic non-heme iron(IV)-oxo species [Fe(IV)(O)((Me,H) Pytacn)(S)](2+) (2, (Me,H)Pytacn=1-(2'-pyridylmethyl)-4,7-dimethyl-1,4,7-triazacyclononane, S=CH(3)CN or H(2)O) is described. Complex 2 was prepared by reaction of [Fe(II)(CF(3)SO(3))(2)((Me,H) Pytacn)] (1) with peracetic acid. Complex 2 bears a tetradentate N(4) ligand that leaves two cis sites available for binding an oxo group and a second external ligand but, unlike the related iron(IV)-oxo species with tetradentate ligands, it is remarkably stable at room temperature (t(1/2)>2 h at 288 K). Its ability to exchange the oxygen atom of the oxo ligand with water has been analyzed in detail by means of kinetic studies, and a mechanism is proposed on the basis of DFT calculations. Hydrogen-atom abstraction from C-H bonds and oxygen-atom transfer to sulfides by 2 have also been studied. Despite its thermal stability, 2 proves to be a very powerful oxidant that is capable of breaking the strong C-H bond of cyclohexane (bond dissociation energy=99.3 kcal mol(-1)).
Collapse
Affiliation(s)
- Anna Company
- Departament de Química, Universitat de Girona, Campus Montilivi, E17071 Girona, Catalonia (Spain), Fax: +34 972 41 81 50
| | - Irene Prat
- Departament de Química, Universitat de Girona, Campus Montilivi, E17071 Girona, Catalonia (Spain), Fax: +34 972 41 81 50
| | - Jonathan R. Frisch
- Department of Chemistry and Center for Metals in Biocatalysis, University of Minnesota, Minneapolis, Minnesota 55455 (USA)
| | - Ruben Mas Ballesté
- Department of Chemistry and Center for Metals in Biocatalysis, University of Minnesota, Minneapolis, Minnesota 55455 (USA)
| | - Mireia Güell
- Institut de Química Computacional, Universitat de Girona, Campus Montilivi, E17071 Girona, Catalonia (Spain)
| | - Gergely Juhász
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213
| | - Xavi Ribas
- Departament de Química, Universitat de Girona, Campus Montilivi, E17071 Girona, Catalonia (Spain), Fax: +34 972 41 81 50
| | - Eckard Münck
- Department of Chemistry, Carnegie Mellon University, 4400 Fifth Avenue, Pittsburgh, Pennsylvania 15213
| | - Josep M. Luis
- Institut de Química Computacional, Universitat de Girona, Campus Montilivi, E17071 Girona, Catalonia (Spain)
| | - Lawrence Que
- Department of Chemistry and Center for Metals in Biocatalysis, University of Minnesota, Minneapolis, Minnesota 55455 (USA)
| | - Miquel Costas
- Departament de Química, Universitat de Girona, Campus Montilivi, E17071 Girona, Catalonia (Spain), Fax: +34 972 41 81 50
| |
Collapse
|
6
|
Schröder K, Enthaler S, Bitterlich B, Schulz T, Spannenberg A, Tse MK, Junge K, Beller M. Design of and Mechanistic Studies on a Biomimetic Iron-Imidazole Catalyst System for Epoxidation of Olefins with Hydrogen Peroxide. Chemistry 2009; 15:5471-81. [DOI: 10.1002/chem.200802731] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
7
|
Ray K, England J, Fiedler AT, Martinho M, Münck E, Que L. An inverted and more oxidizing isomer of [Fe(IV)(O)(tmc)(NCCH3)]2+. Angew Chem Int Ed Engl 2008; 47:8068-71. [PMID: 18798182 DOI: 10.1002/anie.200802219] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kallol Ray
- Department of Chemistry and Center for Metals in Biocatalysis, University of Minnesota, Minneapolis, MN 55455, USA
| | | | | | | | | | | |
Collapse
|
8
|
Ray K, England J, Fiedler A, Martinho M, Münck E, Que L. An Inverted and More Oxidizing Isomer of [FeIV(O)(tmc)(NCCH3)]2+. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200802219] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
9
|
Jeong YJ, Kang Y, Han AR, Lee YM, Kotani H, Fukuzumi S, Nam W. Hydrogen Atom Abstraction and Hydride Transfer Reactions by Iron(IV)-Oxo Porphyrins. Angew Chem Int Ed Engl 2008; 47:7321-4. [DOI: 10.1002/anie.200802346] [Citation(s) in RCA: 106] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
10
|
Jeong YJ, Kang Y, Han AR, Lee YM, Kotani H, Fukuzumi S, Nam W. Hydrogen Atom Abstraction and Hydride Transfer Reactions by Iron(IV)-Oxo Porphyrins. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200802346] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
11
|
Thallaj N, Rotthaus O, Benhamou L, Humbert N, Elhabiri M, Lachkar M, Welter R, Albrecht-Gary AM, Mandon D. Reactivity of Molecular Dioxygen towards a Series of Isostructural Dichloroiron(III) Complexes with Tripodal Tetraamine Ligands: General Access to μ-Oxodiiron(III) Complexes and Effect of α-Fluorination on the Reaction Kinetics. Chemistry 2008; 14:6742-53. [DOI: 10.1002/chem.200701967] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
12
|
de Visser S. Is the μ-Oxo-μ-Peroxodiiron Intermediate of a Ribonucleotide Reductase Biomimetic a Possible Oxidant of Epoxidation Reactions? Chemistry 2008; 14:4533-41. [DOI: 10.1002/chem.200701802] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
13
|
Dhuri S, Seo M, Lee YM, Hirao H, Wang Y, Nam W, Shaik S. Experiment and Theory Reveal the Fundamental Difference between Two-State and Single-State Reactivity Patterns in Nonheme FeIVO versus RuIVO Oxidants. Angew Chem Int Ed Engl 2008; 47:3356-9. [DOI: 10.1002/anie.200705880] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
14
|
Dhuri S, Seo M, Lee YM, Hirao H, Wang Y, Nam W, Shaik S. Experiment and Theory Reveal the Fundamental Difference between Two-State and Single-State Reactivity Patterns in Nonheme FeIVO versus RuIVO Oxidants. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200705880] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
15
|
Seo M, Kamachi T, Kouno T, Murata K, Park M, Yoshizawa K, Nam W. Experimental and Theoretical Evidence for Nonheme Iron(III) Alkylperoxo Species as Sluggish Oxidants in Oxygenation Reactions. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200604219] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
16
|
Seo MS, Kamachi T, Kouno T, Murata K, Park MJ, Yoshizawa K, Nam W. Experimental and Theoretical Evidence for Nonheme Iron(III) Alkylperoxo Species as Sluggish Oxidants in Oxygenation Reactions. Angew Chem Int Ed Engl 2007; 46:2291-4. [PMID: 17304600 DOI: 10.1002/anie.200604219] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Mi Sook Seo
- Department of Chemistry, Division of Nano Sciences and Center for Biomimetic Systems, Ewha Womans University, Seoul 120-750, Korea.
| | | | | | | | | | | | | |
Collapse
|