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Li Z, Mayer RJ, Ofial AR, Mayr H. From Carbodiimides to Carbon Dioxide: Quantification of the Electrophilic Reactivities of Heteroallenes. J Am Chem Soc 2020; 142:8383-8402. [DOI: 10.1021/jacs.0c01960] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhen Li
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 München, Germany
| | - Robert J. Mayer
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 München, Germany
| | - Armin R. Ofial
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 München, Germany
| | - Herbert Mayr
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstraße 5-13, 81377 München, Germany
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2
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von Wolff N, Villiers C, Thuéry P, Lefèvre G, Ephritikhine M, Cantat T. Reactivity and Structural Diversity in the Reaction of Guanidine 1,5,7-Triazabicyclo[4.4.0]dec-5-ene with CO2
, CS2
, and Other Heterocumulenes. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601267] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Niklas von Wolff
- NIMBE; CEA; CNRS; Université Paris-Saclay; 91191 Gif-Sur-Yvette France
| | - Claude Villiers
- NIMBE; CEA; CNRS; Université Paris-Saclay; 91191 Gif-Sur-Yvette France
| | - Pierre Thuéry
- NIMBE; CEA; CNRS; Université Paris-Saclay; 91191 Gif-Sur-Yvette France
| | - Guillaume Lefèvre
- NIMBE; CEA; CNRS; Université Paris-Saclay; 91191 Gif-Sur-Yvette France
| | | | - Thibault Cantat
- NIMBE; CEA; CNRS; Université Paris-Saclay; 91191 Gif-Sur-Yvette France
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3
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Wang Y, Wöll C. IR spectroscopic investigations of chemical and photochemical reactions on metal oxides: bridging the materials gap. Chem Soc Rev 2017; 46:1875-1932. [DOI: 10.1039/c6cs00914j] [Citation(s) in RCA: 130] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In this review, we highlight recent progress (2008–2016) in infrared reflection absorption spectroscopy (IRRAS) studies on oxide powders achieved by using different types of metal oxide single crystals as reference systems.
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Affiliation(s)
- Yuemin Wang
- Institute of Functional Interfaces
- Karlsruhe Institute of Technology
- Eggenstein-Leopoldshafen
- Germany
| | - Christof Wöll
- Institute of Functional Interfaces
- Karlsruhe Institute of Technology
- Eggenstein-Leopoldshafen
- Germany
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4
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Alaji Z, Safaei E, Wojtczak A. Development of pyridine based o-aminophenolate zinc complexes as structurally tunable catalysts for CO2 fixation into cyclic carbonates. NEW J CHEM 2017. [DOI: 10.1039/c7nj01656e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Structure–reactivity correlation in o-aminophenolate zinc catalysts provides an atom-efficient protocol for the conversion of CO2 into valuable cyclic carbonates.
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Affiliation(s)
- Z. Alaji
- Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan
- Iran
| | - E. Safaei
- Department of Chemistry
- College of Sciences
- Shiraz University
- Shiraz
- Iran
| | - A. Wojtczak
- Faculty of Chemistry
- Nicolaus Copernicus University
- 87-100 Torun
- Poland
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5
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Aresta M, Dibenedetto A, Quaranta E. State of the art and perspectives in catalytic processes for CO2 conversion into chemicals and fuels: The distinctive contribution of chemical catalysis and biotechnology. J Catal 2016. [DOI: 10.1016/j.jcat.2016.04.003] [Citation(s) in RCA: 235] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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6
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Luo M, Zhang XH, Darensbourg DJ. Poly(monothiocarbonate)s from the Alternating and Regioselective Copolymerization of Carbonyl Sulfide with Epoxides. Acc Chem Res 2016; 49:2209-2219. [PMID: 27676451 DOI: 10.1021/acs.accounts.6b00345] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Carbonyl sulfide (COS) is an air pollutant that causes acid rain, ozonosphere damage, and carbon dioxide (CO2) generation. It is a heterocumulene and structural analogue of CO2. Relevant to organic synthesis, it is a source of C═O or C═S groups and thus an ideal one-carbon (C1) building block for synthesizing sulfur-containing polymers through the similar route of CO2 copolymerization. In contrast, traditional synthesis of sulfur-containing polymers often involves the condensation of thiols with phosgene and ring-opening polymerization of cyclic thiocarbonates that are generally derived from thiols and phosgene; thus, COS/epoxide copolymerization is a "greener" route to supplement or supplant current processes for the production of sulfur-containing polymers. This Accounts highlights our efforts on the discovery of the selective formation of poly(monothiocarbonate)s from COS with epoxides via heterogeneous zinc-cobalt double metal cyanide complex (Zn-Co(III) DMCC) and homogeneous (salen)CrX complexes. The catalytic activity and selectivity of Zn-Co(III) DMCC for COS/epoxide copolymerization are similar to those for CO2/epoxide copolymerization. (salen)CrX complexes accompanied by onium salts exhibited high activity and selectivity for COS/epoxide copolymerization under mild conditions, affording copolymers with >99% monothiocarbonate units and high tail-to-head content up to 99%. By way of contrast, these catalysts often show moderate or low activity for CO2/epoxide copolymerization. Of note, a specialty of COS/epoxide copolymerization is the occurrence of an oxygen-sulfur exchange reaction (O/S ER), which may produce carbonate and dithiocarbonate units. O/S ER, which are induced by the metal-OH bond regenerated by chain transfer reactions, can be kinetically inhibited by changing the reaction conditions. We provide a thorough mechanistic understanding of the electronic/steric effect of the catalysts on the regioselectivity of COS copolymerization. The regioselectivity of the copolymerization originates from the solely nucleophilic attack of the sulfur anion to methylene of the epoxide, and thus, the chiral configuration of the monosubstituted epoxides is retained. COS-based copolymers are highly transparent sulfur-containing polymers with excellent optical properties, such as high refractive index and Abbe number. Thanks to their good solubility and many available epoxides, COS/epoxide copolymers can potentially be a new applicable optical material. Very recently, crystalline COS-based polymers with or without chiral carbons have been synthesized, which may further expand the scope of application of these new materials.
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Affiliation(s)
- Ming Luo
- MOE
Key Laboratory of Macromolecular Synthesis and Functionalization,
Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xing-Hong Zhang
- MOE
Key Laboratory of Macromolecular Synthesis and Functionalization,
Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Donald J. Darensbourg
- Department of Chemistry, Texas A&M University, College Station, Texas 77843, United States
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7
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Shanmugam R, Thamaraichelvan A, Viswanathan B. Methanol formation by catalytic hydrogenation of CO2 on a nitrogen doped zinc oxide surface: an evaluative study on the mechanistic pathway by density functional theory. RSC Adv 2015. [DOI: 10.1039/c5ra10581a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Computational evaluation of reaction pathway for simultaneous activation of CO2 and water on N doped ZnO surface revealed carbamate mediated methanol formation.
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Affiliation(s)
- Ramasamy Shanmugam
- Department of Chemistry
- Thiagarajar College
- Madurai
- India
- National Center for Catalysis Research
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8
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Beattie C, North M. Mechanistic investigation of the reaction of epoxides with heterocumulenes catalysed by a bimetallic aluminium salen complex. Chemistry 2014; 20:8182-8. [PMID: 24824615 DOI: 10.1002/chem.201400007] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2014] [Indexed: 12/22/2022]
Abstract
The bimetallic aluminium(salen) complex [(Al(salen))2O] is known to catalyse the reaction between epoxides and heterocumulenes (carbon dioxide, carbon disulfide and isocyanates) leading to five-membered ring heterocycles. Despite their apparent similarities, these three reactions have very different mechanistic features, and a kinetic study of oxazolidinone synthesis combined with previous kinetic work on cyclic carbonate and cyclic dithiocarbonate synthesis showed that all three reactions follow different rate equations. An NMR study of [Al(salen)]2O and phenylisocyanate provided evidence for an interaction between them, consistent with the rate equation data. A variable-temperature kinetics study on all three reactions showed that cyclic carbonate synthesis had a lower enthalpy of activation and a more negative entropy of activation than the other two heterocycle syntheses. The kinetic study was extended to oxazolidinone synthesis catalysed by the monometallic complex Al(salen)Cl, and this reaction was found to have a much less negative entropy of activation than any reaction catalysed by [Al(salen)]2O, a result that can be explained by the partial dissociation of an oligomeric Al(salen)Cl complex. A mechanistic rationale for all of the results is presented in terms of [Al(salen)]2O being able to function as a Lewis acid and/or a Lewis base, depending upon the susceptibility of the heterocumulene to reaction with nucleophiles.
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Affiliation(s)
- Christopher Beattie
- School of Chemistry, Newcastle University, Newcastle upon Tyne, NE1 7RU (UK)
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9
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Buchholz M, Weidler PG, Bebensee F, Nefedov A, Wöll C. Carbon dioxide adsorption on a ZnO(101̄0) substrate studied by infrared reflection absorption spectroscopy. Phys Chem Chem Phys 2014; 16:1672-8. [DOI: 10.1039/c3cp54643h] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Martínez-Prieto LM, Real C, Ávila E, Álvarez E, Palma P, Cámpora J. Reversible Reactions of Ni and Pd Hydroxo Pincer Complexes [(iPrPCP)M-OH] with CO2: Solid-State Study of the Decarboxylation of the Monomeric Bicarbonate Complexes [(iPrPCP)M-OCOOH] (M = Ni, Pd). Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300995] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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11
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Liu X, Du P, Cao R. Trinuclear zinc complexes for biologically relevant μ3-oxoanion binding and carbon dioxide fixation. Nat Commun 2013; 4:2375. [DOI: 10.1038/ncomms3375] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Accepted: 07/30/2013] [Indexed: 01/03/2023] Open
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12
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Luo M, Zhang XH, Du BY, Wang Q, Fan ZQ. Regioselective and Alternating Copolymerization of Carbonyl Sulfide with Racemic Propylene Oxide. Macromolecules 2013. [DOI: 10.1021/ma401114m] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ming Luo
- MOE Key Laboratory of Macromolecular
Synthesis and
Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xing-Hong Zhang
- MOE Key Laboratory of Macromolecular
Synthesis and
Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Bin-Yang Du
- MOE Key Laboratory of Macromolecular
Synthesis and
Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Qi Wang
- MOE Key Laboratory of Macromolecular
Synthesis and
Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Zhi-Qiang Fan
- MOE Key Laboratory of Macromolecular
Synthesis and
Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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13
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14
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Yao K, Wang Z, Wang J, Wang S. Biomimetic material—poly(N-vinylimidazole)–zinc complex for CO2 separation. Chem Commun (Camb) 2012; 48:1766-8. [DOI: 10.1039/c2cc16835a] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Selective copolymerization of carbon dioxide with propylene oxide catalyzed by a nanolamellar double metal cyanide complex catalyst at low polymerization temperatures. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.09.040] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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16
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Schmidt S, Schäper R, Schulz S, Bläser D, Wölper C. Insertion Reactions of Heterocumulenes into Zn−C Bonds: Synthesis and Structural Characterization of Multinuclear Zinc Amidate Complexes. Organometallics 2011. [DOI: 10.1021/om101107e] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sarah Schmidt
- Institute of Inorganic Chemistry, University of Duisburg-Essen, 45117 Essen, Germany
| | - Raphaela Schäper
- Institute of Inorganic Chemistry, University of Duisburg-Essen, 45117 Essen, Germany
| | - Stephan Schulz
- Institute of Inorganic Chemistry, University of Duisburg-Essen, 45117 Essen, Germany
| | - Dieter Bläser
- Institute of Inorganic Chemistry, University of Duisburg-Essen, 45117 Essen, Germany
| | - Christoph Wölper
- Institute of Inorganic Chemistry, University of Duisburg-Essen, 45117 Essen, Germany
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17
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Ibrahim MM, Amin MA, Ichikawa K. Synthesis and characterization of benzimidazole-based zinc complexes as structural carbonic anhydrase models and their applications towards CO2 hydration. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2010.10.041] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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Alzoubi B, Puchta R, van Eldik R. Ligand Exchange Processes on Solvated Zinc Cations - DFT Analysis of Hydrogen Cyanide Exchange on [Zn(HCN)6]2+. Z Anorg Allg Chem 2009. [DOI: 10.1002/zaac.200900160] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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19
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COPOLYMERIZATION OF CARBON DISULFIDE AND CYCLOHEXENE OXIDE WITH A DOUBLE-METAL CYANIDE COMPLEX CATALYST. ACTA POLYM SIN 2009. [DOI: 10.3724/sp.j.1105.2009.00546] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Knight PD, White AJP, Williams CK. Dinuclear Zinc Complexes Using Pentadentate Phenolate Ligands. Inorg Chem 2008; 47:11711-9. [DOI: 10.1021/ic8014173] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Paul D. Knight
- Department of Chemistry, Imperial College London, London, SW7 2AZ, U.K
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21
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Jahn BO, Eger WA, Anders E. Allene as the Parent Substrate in Zinc-Mediated Biomimetic Hydration Reactions of Cumulenes. J Org Chem 2008; 73:8265-78. [DOI: 10.1021/jo801358m] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Burkhard O. Jahn
- Institut of Organic and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
| | - Wilhelm A. Eger
- Institut of Organic and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
| | - Ernst Anders
- Institut of Organic and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstrasse 10, 07743 Jena, Germany
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22
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Neuhäuser C, Domide D, Mautz J, Kaifer E, Himmel HJ. Electron density controlled carbamate ligand binding mode: towards a better understanding of metalloenzyme activity. Dalton Trans 2008:1821-4. [PMID: 18369486 DOI: 10.1039/b800687n] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first structurally characterized mononuclear biscarbamate complex of Zn with eta1-coordinated carbamate ligands can be prepared by reaction between [EtZn(O2CN(iBu)2)]4 and a guanidine base. Usage of a weaker base leads to eta2-coordinated complexes.
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Affiliation(s)
- C Neuhäuser
- Anorganisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, D-69120, Heidelberg, Germany
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23
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Notni J, Schenk S, Görls H, Breitzke H, Anders E. Formation of a Unique Zinc Carbamate by CO2 Fixation: Implications for the Reactivity of Tetra-Azamacrocycle Ligated Zn(II) Complexes. Inorg Chem 2008; 47:1382-90. [DOI: 10.1021/ic701899u] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Johannes Notni
- Friedrich-Schiller-Universität Jena, Institut
für Organische Chemie and Makromolekulare Chemie, Humboldtstr.
10, D-07743 Jena, Germany,
- Laboratorium für Physikalische Chemie, ETH Zürich, Wolfgang-Pauli-Str. 10, CH-8093 Zürich, Switzerland,
- Friedrich-Schiller-Universität Jena, Institut für Anorganizche and Analytische Chemie, Lessingstr. 8, D-07743 Jena, Germany,
- Friedrich-Schiller-Universität Jena, Institut für Physikalische Chemie, and Helmholtzweg 4, D-07743 Jena, Germany
| | - Stephan Schenk
- Friedrich-Schiller-Universität Jena, Institut
für Organische Chemie and Makromolekulare Chemie, Humboldtstr.
10, D-07743 Jena, Germany,
- Laboratorium für Physikalische Chemie, ETH Zürich, Wolfgang-Pauli-Str. 10, CH-8093 Zürich, Switzerland,
- Friedrich-Schiller-Universität Jena, Institut für Anorganizche and Analytische Chemie, Lessingstr. 8, D-07743 Jena, Germany,
- Friedrich-Schiller-Universität Jena, Institut für Physikalische Chemie, and Helmholtzweg 4, D-07743 Jena, Germany
| | - Helmar Görls
- Friedrich-Schiller-Universität Jena, Institut
für Organische Chemie and Makromolekulare Chemie, Humboldtstr.
10, D-07743 Jena, Germany,
- Laboratorium für Physikalische Chemie, ETH Zürich, Wolfgang-Pauli-Str. 10, CH-8093 Zürich, Switzerland,
- Friedrich-Schiller-Universität Jena, Institut für Anorganizche and Analytische Chemie, Lessingstr. 8, D-07743 Jena, Germany,
- Friedrich-Schiller-Universität Jena, Institut für Physikalische Chemie, and Helmholtzweg 4, D-07743 Jena, Germany
| | - Hergen Breitzke
- Friedrich-Schiller-Universität Jena, Institut
für Organische Chemie and Makromolekulare Chemie, Humboldtstr.
10, D-07743 Jena, Germany,
- Laboratorium für Physikalische Chemie, ETH Zürich, Wolfgang-Pauli-Str. 10, CH-8093 Zürich, Switzerland,
- Friedrich-Schiller-Universität Jena, Institut für Anorganizche and Analytische Chemie, Lessingstr. 8, D-07743 Jena, Germany,
- Friedrich-Schiller-Universität Jena, Institut für Physikalische Chemie, and Helmholtzweg 4, D-07743 Jena, Germany
| | - Ernst Anders
- Friedrich-Schiller-Universität Jena, Institut
für Organische Chemie and Makromolekulare Chemie, Humboldtstr.
10, D-07743 Jena, Germany,
- Laboratorium für Physikalische Chemie, ETH Zürich, Wolfgang-Pauli-Str. 10, CH-8093 Zürich, Switzerland,
- Friedrich-Schiller-Universität Jena, Institut für Anorganizche and Analytische Chemie, Lessingstr. 8, D-07743 Jena, Germany,
- Friedrich-Schiller-Universität Jena, Institut für Physikalische Chemie, and Helmholtzweg 4, D-07743 Jena, Germany
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24
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Sun XK, Zhang XH, Liu F, Chen S, Du BY, Wang Q, Fan ZQ, Qi GR. Alternating copolymerization of carbon dioxide and cyclohexene oxide catalyzed by silicon dioxide/ZnCoIII double metal cyanide complex hybrid catalysts with a nanolamellar structure. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/pola.22666] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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25
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Verdejo B, Blasco S, González J, García-España E, Gaviña P, Tatay S, Doménech A, Doménech-Carbó MT, Jiménez HR, Soriano C. CO2 Fixation and Activation by CuII Complexes of 5,5″-Terpyridinophane Macrocycles. Eur J Inorg Chem 2008. [DOI: 10.1002/ejic.200700767] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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26
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Görls H, Notni J, Anders E. [(1-Azulen-yl)methane-thiol-ato-κS](1,4,8,12-tetra-azacyclo-penta-decane-κN)zinc(II) perchlorate. Acta Crystallogr Sect E Struct Rep Online 2007; 64:m203. [PMID: 21200551 PMCID: PMC2915133 DOI: 10.1107/s1600536807047514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2007] [Accepted: 09/27/2007] [Indexed: 11/10/2022]
Abstract
In the title compound, [Zn(C(11)H(26)N(4))(C(11)H(9)S)]ClO(4), the Zn(II) atom is five-coordinated by four N atoms from a neutral 1,4,8,12-tetra-azacyclo-penta-decane aza-macrocycle mol-ecule, and one S atom from an azulenylmethane-thiol-ate ligand. Only monomers are found in the crystal. The coordination geometry can be described as trigonal bipyramidal, with the thiol-ate group in an equatorial position. The Zn-N and Zn-S distances are in the usual ranges for this type of complex.
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27
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Wang Y, Kováčik R, Meyer B, Kotsis K, Stodt D, Staemmler V, Qiu H, Traeger F, Langenberg D, Muhler M, Wöll C. CO2-Aktivierung durch ZnO unter Bildung eines ungewöhnlichen dreizähnigen Oberflächencarbonats. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200700564] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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28
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Wang Y, Kovácik R, Meyer B, Kotsis K, Stodt D, Staemmler V, Qiu H, Traeger F, Langenberg D, Muhler M, Wöll C. CO2 Activation by ZnO through the Formation of an Unusual Tridentate Surface Carbonate. Angew Chem Int Ed Engl 2007; 46:5624-7. [PMID: 17579889 DOI: 10.1002/anie.200700564] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yuemin Wang
- Lehrstuhl für Physikalische Chemie I and Lehrstuhl für Technische Chemie, Ruhr-Universität Bochum, 44780 Bochum, Germany.
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Notni J, Schenk S, Protoschill-Krebs G, Kesselmeier J, Anders E. The Missing Link in COS Metabolism: A Model Study on the Reactivation of Carbonic Anhydrase from its Hydrosulfide Analogue. Chembiochem 2007; 8:530-6. [PMID: 17304603 DOI: 10.1002/cbic.200600436] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Carbonic anhydrase (CA) is known to react with carbonyl sulfide, an atmospheric trace gas, whereby H(2)S is formed. It has been shown that, in the course of this reaction, the active catalyst, the His(3)ZnOH structural motif, is converted to its hydrosulfide form: His(3)ZnOH+COS-->His(3)ZnSH+CO(2). In this study, we elucidate the mechanism of reactivation of carbonic anhydrase (CA) from its hydrosulfide analogue by using density functional calculations, a model reaction and in vivo experimental investigation. The desulfuration occurs according to the overall equation His(3)ZnSH+H(2)O right harpoon over left harpoon His(3)ZnOH+H(2)S. The initial step is a protonation equilibrium at the zinc-bound hydrosulfide. The hydrogen sulfide ligand thus formed is then replaced by a water molecule, which is subsequently deprotonated to yield the reactivated catalytic centre of CA. Such a mechanism is thought to enable a plant cell to expel H(2)S or rapidly metabolise it to cysteine via the cysteine synthase complex. The proposed mechanism of desulfuration of the hydrosulfide analogue of CA can thus be regarded as the missing link between COS consumption of plants and their sulfur metabolism.
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Affiliation(s)
- Johannes Notni
- Friedrich-Schiller-Universität Jena, Institut für Organische Chemie und Makromolekulare Chemie, Humboldtstrasse 10, 07743 Jena, Germany
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