1
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Battistella B, Lohmiller T, Cula B, Hildebrandt P, Kuhlmann U, Dau H, Mebs S, Ray K. A New Thiolate-Bound Dimanganese Cluster as a Structural and Functional Model for Class Ib Ribonucleotide Reductases. Angew Chem Int Ed Engl 2023; 62:e202217076. [PMID: 36583430 DOI: 10.1002/anie.202217076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/24/2022] [Accepted: 12/29/2022] [Indexed: 12/31/2022]
Abstract
In class Ib ribonucleotide reductases (RNRs) a dimanganese(II) cluster activates superoxide (O2 ⋅- ) rather than dioxygen (O2 ), to access a high valent MnIII -O2 -MnIV species, responsible for the oxidation of tyrosine to tyrosyl radical. In a biomimetic approach, we report the synthesis of a thiolate-bound dimanganese complex [MnII 2 (BPMT)(OAc)2 ](ClO)4 (BPMT=(2,6-bis{[bis(2-pyridylmethyl)amino]methyl}-4-methylthiophenolate) (1) and its reaction with O2 ⋅- to form a [(BPMT)MnO2 Mn]2+ complex 2. Resonance Raman investigation revealed the presence of an O-O bond in 2, while EPR analysis displayed a 16-line St =1/2 signal at g=2 typically associated with a MnIII MnIV core, as detected in class Ib RNRs. Unlike all other previously reported Mn-O2 -Mn complexes, generated by O2 ⋅- activation at Mn2 centers, 2 proved to be a capable electrophilic oxidant in aldehyde deformylation and phenol oxidation reactions, rendering it one of the best structural and functional models for class Ib RNRs.
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Affiliation(s)
- Beatrice Battistella
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Thomas Lohmiller
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany.,EPR4Energy Joint Lab, Department Spins in Energy Conversion and Quantum Information Science, Helmholtz Zentrum Berlin für Materialien und Energie GmbH, Albert-Einstein-Str. 16, 12489, Berlin, Germany
| | - Beatrice Cula
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Peter Hildebrandt
- Institut für Chemie, Fakultät II, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Uwe Kuhlmann
- Institut für Chemie, Fakultät II, Technische Universität Berlin, Straße des 17. Juni 135, 10623, Berlin, Germany
| | - Holger Dau
- Institut für Physik, Freie Universität zu Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Stefan Mebs
- Institut für Physik, Freie Universität zu Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Kallol Ray
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
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2
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Liu Y, Resch SG, Chen H, Dechert S, Demeshko S, Bill E, Ye S, Meyer F. Fully Delocalized Mixed-Valent Cu 1.5 Cu 1.5 Complex: Strong Cu-Cu interaction and Fast Electron Self-Exchange Rate Despite Large Structural Changes. Angew Chem Int Ed Engl 2023; 62:e202215840. [PMID: 36504436 DOI: 10.1002/anie.202215840] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/07/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022]
Abstract
A flexible macrocyclic ligand with two tridentate {CNC} compartments can host two Cu ions in reversibly interconvertible states, CuI CuI (1) and mixed-valent Cu1.5 Cu1.5 (2). They were characterized by XRD and multiple spectroscopic methods, including EPR, UV/Vis absorption and MCD, in combination with TD-DFT and CASSCF calculations. 2 features a short Cu⋅⋅⋅Cu distance (≈2.5 Å; compared to ≈4.0 Å in 1) and a very high delocalization energy of 13 000 cm-1 , comparable to the mixed-valent state of the biological CuA site. Electron self-exchange between 1 and 2 is rapid despite large structural reorganization, and is proposed to proceed via a sequential mechanism involving an active conformer of 1, viz. 1'; the latter has been characterized by XRD. Such electron transfer (ET) process is reminiscent of the conformationally gated ET proposed for biological systems. This redox couple is a unique pair of flexible dicopper complexes, achieving fast electron self-exchange closely related to the function of the CuA site.
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Affiliation(s)
- Yang Liu
- Institute of Inorganic Chemistry, University of Göttingen, Tammannstrasse 4, 37077, Göttingen, Germany
| | - Stefan G Resch
- Institute of Inorganic Chemistry, University of Göttingen, Tammannstrasse 4, 37077, Göttingen, Germany
| | - Haowei Chen
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China.,Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Sebastian Dechert
- Institute of Inorganic Chemistry, University of Göttingen, Tammannstrasse 4, 37077, Göttingen, Germany
| | - Serhiy Demeshko
- Institute of Inorganic Chemistry, University of Göttingen, Tammannstrasse 4, 37077, Göttingen, Germany
| | - Eckhard Bill
- Department of Inorganic Spectroscopy, Max Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, 45470, Mülheim an der Ruhr, Germany
| | - Shengfa Ye
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
| | - Franc Meyer
- Institute of Inorganic Chemistry, University of Göttingen, Tammannstrasse 4, 37077, Göttingen, Germany
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3
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Esmieu C, Orio M, Mangue J, Pécaut J, Ménage S, Torelli S. Valence Localization at a Bio-inspired Mixed-Valent {Cu2
S}2+
Motif upon Solvation in Acetonitrile: Effect on Nitrous Oxide Reductase (N2
Or) Activity. Chemistry 2017; 24:5060-5063. [DOI: 10.1002/chem.201704737] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Charlène Esmieu
- Univ. Grenoble Alpes; CEA, CNRS, BIG-LCBM, UMR5249; 38000 Grenoble France
| | - Maylis Orio
- Institut des Sciences Moléculaires de Marseille; Aix Marseille Université, CNRS, Centrale Marseille, ISM2 UMR 7313; 13097 Marseille France
| | - Jordan Mangue
- Univ. Grenoble Alpes; CEA, CNRS, BIG-LCBM, UMR5249; 38000 Grenoble France
| | - Jacques Pécaut
- Univ. Grenoble Alpes; CEA, CNRS, INAC-SyMMES; 38000 Grenoble France
| | - Stéphane Ménage
- Univ. Grenoble Alpes; CEA, CNRS, BIG-LCBM, UMR5249; 38000 Grenoble France
| | - Stéphane Torelli
- Univ. Grenoble Alpes; CEA, CNRS, BIG-LCBM, UMR5249; 38000 Grenoble France
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4
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Witte M, Gerstmann U, Neuba A, Henkel G, Schmidt WG. Density functional theory of the CuA
-like Cu2
S2
diamond core in Cu
2II(NGuaS)2
Cl2. J Comput Chem 2016; 37:1005-18. [DOI: 10.1002/jcc.24289] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 11/30/2015] [Accepted: 12/02/2015] [Indexed: 11/07/2022]
Affiliation(s)
- M. Witte
- Department of Physics, Lehrstuhl Für Theoretische Materialphysik, Universität Paderborn; Paderborn 33098 Germany
| | - U. Gerstmann
- Department of Physics, Lehrstuhl Für Theoretische Materialphysik, Universität Paderborn; Paderborn 33098 Germany
| | - A. Neuba
- Department of Chemistry, Lehrstuhl Für Anorganische Chemie, Universität Paderborn; Paderborn 33098 Germany
| | - G. Henkel
- Department of Chemistry, Lehrstuhl Für Anorganische Chemie, Universität Paderborn; Paderborn 33098 Germany
| | - W. G. Schmidt
- Department of Physics, Lehrstuhl Für Theoretische Materialphysik, Universität Paderborn; Paderborn 33098 Germany
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5
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Neuba A, Rohrmüller M, Hölscher R, Schmidt WG, Henkel G. A panel of peralkylated sulfur–guanidine type bases: Novel pro-ligands for use in biomimetic coordination chemistry. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.03.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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6
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Neuba A, Haase R, Meyer-Klaucke W, Flörke U, Henkel G. Eine reversible halogeninduzierte Kupfer(I)-Disulfid-Kupfer(II)-Thiolat-Umwandlung. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201102714] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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7
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Neuba A, Haase R, Meyer-Klaucke W, Flörke U, Henkel G. A Halide-Induced Copper(I) Disulfide/Copper(II) Thiolate Interconversion. Angew Chem Int Ed Engl 2012; 51:1714-8. [PMID: 22234962 DOI: 10.1002/anie.201102714] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2011] [Revised: 09/14/2011] [Indexed: 11/08/2022]
Affiliation(s)
- Adam Neuba
- Fakultät für Naturwissenschaften, Department Chemie, Universität Paderborn, Warburger Strasse 100, 33098 Paderborn, Germany
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8
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Konu J, Chivers T, Tuononen HM. Bond Stretching and Redox Behavior in Coinage Metal Complexes of the Dichalcogenide Dianions [(SPh2P)2CEEC(PPh2S)2]2− (E=S, Se): Diradical Character of the Dinuclear Copper(I) Complex (E=S). Chemistry 2011; 17:11844-56. [DOI: 10.1002/chem.201100891] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Indexed: 11/11/2022]
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9
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Neuba A, Flörke U, Meyer-Klaucke W, Salomone-Stagni M, Bill E, Bothe E, Höfer P, Henkel G. The trinuclear copper(I) thiolate complexes [Cu3(NGuaS)3](0/1+) and their dimeric variants [Cu6(NGuaS)6](1+/2+/3+) with biomimetic redox properties. Angew Chem Int Ed Engl 2011; 50:4503-7. [PMID: 21484972 DOI: 10.1002/anie.201008076] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2010] [Revised: 01/13/2011] [Indexed: 11/08/2022]
Affiliation(s)
- Adam Neuba
- Fakultät für Naturwissenschaften, Department Chemie, Universität Paderborn, Warburger-Strasse 100, 33098 Paderborn, Germany
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