1
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Chowdhury SN, Biswas S, Das S, Biswas AN. Kinetic and mechanistic investigations of dioxygen reduction by a molecular Cu(II) catalyst bearing a pentadentate amidate ligand. Dalton Trans 2023; 52:11581-11590. [PMID: 37548356 DOI: 10.1039/d3dt02194g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
A pentadentate Cu(II) complex, [CuII(dpaq)](ClO4) (1), featuring a redox active ligand, H-dpaq (H-dpaq = 2-[bis(pyridine-2-ylmethyl)]amino-N-quinolin-8-yl-acetamidate), catalyses four-electron reduction of dioxygen by decamethylferrocene (Fc*) in the presence of trifluoroacetic acid (CF3COOH) in acetone at 298 K. No catalytic oxygen reduction was observed in the presence of stronger Brønsted acids than CF3COOH, such as perchloric acid (HClO4) or trifluoromethanesulphonic acid (HOTf). In contrast, facile catalytic reduction of O2 occurs by Fc* with 1 and HClO4 or HOTf in dimethylformamide (DMF). The use of CF3COOH as the proton source in DMF results in the suppression of O2 reduction under otherwise identical reaction conditions. While the O2 reduction reactions in DMF are linearly dependent on the pKa of Brønsted acids, the acid dependence on catalytic O2-reduction reactivity by 1 in acetone showed complete reversal. Cyclic voltammetry studies using p-chloranil as the probe substrates in the presence of acids in the solvents reveal that the strengths of the protonic acids increase significantly in acetone compared to that in DMF. The amidate-N in [CuII(dpaq)](ClO4) (1) undergoes protonation in the presence of HClO4 or HOTf in DMF to form [CuII(H-dpaq)]2+ (1-H+), but not in the presence of CF3COOH. Enhanced acid strength of CF3COOH in acetone, however, effectively protonates 1 and triggers O2 reduction. Protonation of 1 with HClO4 or HOTf in acetone results in the change of its coordination environment, and this protonated species does not trigger O2 reduction. Detailed kinetic studies indicate that 1-H+ undergoes reduction by two-electrons and the reduced species binds O2 to form a Cu(II)-superoxo intermediate. This is followed by a rate-determining proton-coupled electron-transfer (PCET) reduction to generate the Cu(II)-hydroperoxo intermediate. While catalytic O2 reduction in acetone occurs predominantly via a 4e-/4H+ pathway, product selectivity (H2O vs. H2O2) in DMF depends upon the concentration of the reductant (Fc*). While dioxygen reduction to H2O2 is favoured at low [Fc*], mechanistic studies suggest that O2 reduction with high [Fc*] proceeds via a [2e- + 2e-] mechanism, where the released H2O2 during catalysis is further reduced to water.
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Affiliation(s)
- Srijan Narayan Chowdhury
- Department of Chemistry, National Institute of Technology Sikkim, Ravangla, South Sikkim 737139, India.
| | - Sachidulal Biswas
- Department of Chemistry, National Institute of Technology Sikkim, Ravangla, South Sikkim 737139, India.
| | - Saikat Das
- Department of Chemistry, National Institute of Technology Sikkim, Ravangla, South Sikkim 737139, India.
| | - Achintesh N Biswas
- Department of Chemistry, National Institute of Technology Sikkim, Ravangla, South Sikkim 737139, India.
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2
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Bhunia S, Ghatak A, Dey A. Second Sphere Effects on Oxygen Reduction and Peroxide Activation by Mononuclear Iron Porphyrins and Related Systems. Chem Rev 2022; 122:12370-12426. [PMID: 35404575 DOI: 10.1021/acs.chemrev.1c01021] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Activation and reduction of O2 and H2O2 by synthetic and biosynthetic iron porphyrin models have proved to be a versatile platform for evaluating second-sphere effects deemed important in naturally occurring heme active sites. Advances in synthetic techniques have made it possible to install different functional groups around the porphyrin ligand, recreating artificial analogues of the proximal and distal sites encountered in the heme proteins. Using judicious choices of these substituents, several of the elegant second-sphere effects that are proposed to be important in the reactivity of key heme proteins have been evaluated under controlled environments, adding fundamental insight into the roles played by these weak interactions in nature. This review presents a detailed description of these efforts and how these have not only demystified these second-sphere effects but also how the knowledge obtained resulted in functional mimics of these heme enzymes.
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Affiliation(s)
- Sarmistha Bhunia
- School of Chemical Science, Indian Association for the Cultivation of Science, 2A Raja SC Mullick Road, Kolkata 700032, India
| | - Arnab Ghatak
- School of Chemical Science, Indian Association for the Cultivation of Science, 2A Raja SC Mullick Road, Kolkata 700032, India
| | - Abhishek Dey
- School of Chemical Science, Indian Association for the Cultivation of Science, 2A Raja SC Mullick Road, Kolkata 700032, India
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3
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Schlagintweit JF, Altmann PJ, Böth AD, Hofmann BJ, Jandl C, Kaußler C, Nguyen L, Reich RM, Pöthig A, Kühn FE. Activation of Molecular Oxygen by a Cobalt(II) Tetra-NHC Complex*. Chemistry 2021; 27:1311-1315. [PMID: 33125815 PMCID: PMC7898330 DOI: 10.1002/chem.202004758] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Indexed: 11/24/2022]
Abstract
The first dicobalt(III) μ2 -peroxo N-heterocyclic carbene (NHC) complex is reported. It can be quantitatively generated from a cobalt(II) compound bearing a 16-membered macrocyclic tetra-NHC ligand via facile activation of dioxygen from air at ambient conditions. The reaction proceeds via an end-on superoxo intermediate as demonstrated by EPR studies and DFT. The peroxo moiety can be cleaved upon addition of acetic acid, yielding the corresponding CoIII acetate complex going along with H2 O2 formation. In contrast, both CoII and CoIII complexes are also studied as catalysts to utilize air for olefin and alkane oxidation reactions; however, not resulting in product formation. The observations are rationalized by DFT-calculations, suggesting a nucleophilic nature of the dicobalt(III) μ2 -peroxo complex. All isolated compounds are characterized by NMR, ESI-MS, elemental analysis, EPR and SC-XRD.
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Affiliation(s)
- Jonas F. Schlagintweit
- Molecular CatalysisCatalysis Research Center and Department of ChemistryTechnische Universität MünchenLichtenbergstraße 485747Garching bei MünchenGermany
| | - Philipp J. Altmann
- Molecular CatalysisCatalysis Research Center and Department of ChemistryTechnische Universität MünchenLichtenbergstraße 485747Garching bei MünchenGermany
- Single Crystal XRD Laboratory of the Catalysis Research CenterTechnische Universität MünchenErnst-Otto-Fischer-Str. 185747Garching bei MünchenGermany
| | - Alexander D. Böth
- Molecular CatalysisCatalysis Research Center and Department of ChemistryTechnische Universität MünchenLichtenbergstraße 485747Garching bei MünchenGermany
| | - Benjamin J. Hofmann
- Molecular CatalysisCatalysis Research Center and Department of ChemistryTechnische Universität MünchenLichtenbergstraße 485747Garching bei MünchenGermany
| | - Christian Jandl
- Single Crystal XRD Laboratory of the Catalysis Research CenterTechnische Universität MünchenErnst-Otto-Fischer-Str. 185747Garching bei MünchenGermany
| | - Clemens Kaußler
- Molecular CatalysisCatalysis Research Center and Department of ChemistryTechnische Universität MünchenLichtenbergstraße 485747Garching bei MünchenGermany
| | - Linda Nguyen
- Molecular CatalysisCatalysis Research Center and Department of ChemistryTechnische Universität MünchenLichtenbergstraße 485747Garching bei MünchenGermany
- Ausbildungszentrum der Technischen Universität MünchenTechnische Universität MünchenLichtenbergstraße 485747Garching bei MünchenGermany
| | - Robert M. Reich
- Molecular CatalysisCatalysis Research Center and Department of ChemistryTechnische Universität MünchenLichtenbergstraße 485747Garching bei MünchenGermany
| | - Alexander Pöthig
- Single Crystal XRD Laboratory of the Catalysis Research CenterTechnische Universität MünchenErnst-Otto-Fischer-Str. 185747Garching bei MünchenGermany
| | - Fritz E. Kühn
- Molecular CatalysisCatalysis Research Center and Department of ChemistryTechnische Universität MünchenLichtenbergstraße 485747Garching bei MünchenGermany
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4
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Lu X, Lee YM, Sankaralingam M, Fukuzumi S, Nam W. Catalytic Four-Electron Reduction of Dioxygen by Ferrocene Derivatives with a Nonheme Iron(III) TAML Complex. Inorg Chem 2020; 59:18010-18017. [PMID: 33300784 DOI: 10.1021/acs.inorgchem.0c02400] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A mononuclear nonheme iron(III) complex with a tetraamido macrocyclic ligand (TAML), [(TAML)FeIII]- (1), is a selective precatalyst for four-electron reduction of dioxygen by ferrocene derivatives in the presence of acetic acid (CH3COOH) in acetone. This is the first work to show that a nonheme iron(III) complex catalyzes the four-electron reduction of O2 by one-electron reductants. An iron(V)-oxo complex, [(TAML)FeV(O)]- (2), was produced by oxygenation of 1 with O2 via the formation of triacetone triperoxide (TATP), acting as an autocatalyst that shortened the induction time for the generation of 2. Decamethylferrocene (Me10Fc) and octamethylferrocene (Me8Fc) reduced 2 to 1 by two electrons in the presence of CH3COOH to produce decamethylferrocenium cation (Me10Fc+) and octamethylferrocenium cation (Me8Fc+), respectively. Then, 1 was oxygenated by O2 to regenerate 2 via the formation of TATP. In the cases of ferrocene (Fc), bromoferrocene (BrFc) and 1,1'-dibromoferrocene (Br2Fc), initial electron transfer from ferrocene derivatives to 2 occurred; however, neither a second proton-coupled electron transfer from ferrocene derivatives to 2 nor a catalytic four-electron reduction of O2 occurred.
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Affiliation(s)
- Xiaoyan Lu
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Yong-Min Lee
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | | | - Shunichi Fukuzumi
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea.,Faculty of Science and Engineering, Meijo University, Nagoya, Aichi 468-8502, Japan
| | - Wonwoo Nam
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
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5
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Liu Y, Zhou G, Zhang Z, Lei H, Yao Z, Li J, Lin J, Cao R. Significantly improved electrocatalytic oxygen reduction by an asymmetrical Pacman dinuclear cobalt(ii) porphyrin-porphyrin dyad. Chem Sci 2019; 11:87-96. [PMID: 32110360 PMCID: PMC7012046 DOI: 10.1039/c9sc05041h] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 11/03/2019] [Indexed: 11/21/2022] Open
Abstract
Asymmetrical Pacman dinuclear Co bisporphyrin shows significantly improved activity and selectivity for catalytic reduction of O2 to water in comparison with corresponding mononuclear Co porphyrins and symmetrical dinuclear Co bisporphyrins.
Pacman dinuclear CoII triphenylporphyrin-tri(pentafluorophenyl)porphyrin 1 and dinuclear CoII bis-tri(pentafluorophenyl)porphyrin 2, anchored at the two meso-positions of a benzene linker, are synthesized and examined as electrocatalysts for the oxygen reduction reaction (ORR). Both dinuclear Co bisporphyrins are more efficient and selective than corresponding mononuclear CoII tetra(pentafluorophenyl)porphyrin 3 and CoII tetraphenylporphyrin 4 for the four-electron electrocatalytic reduction of O2 to water. Significantly, although the ORR selectivities of the two dinuclear Co bisporphyrins are similar to each other, 1 outperforms 2, in terms of larger catalytic ORR currents and lower overpotentials. Electrochemical studies showed different redox behaviors of the two Co sites of 1: the CoIII/CoII reduction of the Co-TPP (TPP = triphenylporphyrin) site is well-behind that of the Co-TPFP (TPFP = tri(pentafluorophenyl)porphyrin) site by 440 mV. This difference indicated their different roles in the ORR: CoII-TPFP is likely the O2 binding and reduction site, while CoIII-TPP, which is generated by the oxidation of CoII-TPP on electrodes, may function as a Lewis acid to assist the O2 binding and activation. The positively charged CoIII-TPP will have through-space charge interactions with the negatively charged O2-adduct unit, which will reduce the activation energy barrier for the ORR. This effect of Co-TPP closely resembles that of the CuB site of metalloenzyme cytochrome c oxidase (CcO), which catalyzes the biological reduction of O2. This work represents a rare example of asymmetrical dinuclear metal catalysts, which can catalyze the 4e reduction of O2 with high selectivity and significantly improved activity.
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Affiliation(s)
- Yanju Liu
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China . .,Department of Chemistry , Renmin University of China , Beijing 100872 , China
| | - Guojun Zhou
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China .
| | - Zongyao Zhang
- Department of Chemistry , Renmin University of China , Beijing 100872 , China
| | - Haitao Lei
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China .
| | - Zhen Yao
- College of Materials Science and Optoelectronic Technology , University of Chinese Academy of Science , Beijing 101408 , China
| | - Jianfeng Li
- College of Materials Science and Optoelectronic Technology , University of Chinese Academy of Science , Beijing 101408 , China
| | - Jun Lin
- Department of Chemistry , Renmin University of China , Beijing 100872 , China
| | - Rui Cao
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China .
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Kamyabi MA, Soleymani‐Bonoti F, Alirezaei F, Bikas R, Noshiranzadeh N, Emami M, Krawczyk MS, Lis T. Electrocatalytic properties of a dinuclear cobalt(III) coordination compound in molecular oxygen reduction reaction. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5214] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mohammad Ali Kamyabi
- Department of Chemistry, Faculty of ScienceUniversity of Zanjan 45371‐38791 Zanjan Iran
| | | | - Fariba Alirezaei
- Department of Chemistry, Faculty of ScienceUniversity of Zanjan 45371‐38791 Zanjan Iran
| | - Rahman Bikas
- Department of Chemistry, Faculty of ScienceImam Khomeini International University 34148‐96818 Qazvin Iran
| | - Nader Noshiranzadeh
- Department of Chemistry, Faculty of ScienceUniversity of Zanjan 45371‐38791 Zanjan Iran
| | - Marzieh Emami
- Department of Chemistry, Faculty of ScienceUniversity of Zanjan 45371‐38791 Zanjan Iran
| | - Marta S. Krawczyk
- Department of Analytical Chemistry, Faculty of PharmacyWroclaw Medical University Borowska 211A 50‐556 Wroclaw Poland
| | - Tadeusz Lis
- Faculty of ChemistryUniversity of Wroclaw Joliot‐Curie 14 50‐383 Wroclaw Poland
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7
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Meng J, Lei H, Li X, Qi J, Zhang W, Cao R. Attaching Cobalt Corroles onto Carbon Nanotubes: Verification of Four-Electron Oxygen Reduction by Mononuclear Cobalt Complexes with Significantly Improved Efficiency. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00213] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jia Meng
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Haitao Lei
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Xialiang Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Jing Qi
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Wei Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Rui Cao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
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8
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Fukuzumi S, Lee YM, Nam W. Structure and reactivity of the first-row d-block metal-superoxo complexes. Dalton Trans 2019; 48:9469-9489. [DOI: 10.1039/c9dt01402k] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This review discusses the structure and reactivity of metal-superoxo complexes covering all ten first-row d-block metals from Sc to Zn.
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Affiliation(s)
- Shunichi Fukuzumi
- Department of Chemistry and Nano Science
- Ewha Womans University
- Seoul 03760
- Korea
- Graduate School of Science and Technology
| | - Yong-Min Lee
- Department of Chemistry and Nano Science
- Ewha Womans University
- Seoul 03760
- Korea
- Research Institute for Basic Sciences
| | - Wonwoo Nam
- Department of Chemistry and Nano Science
- Ewha Womans University
- Seoul 03760
- Korea
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
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9
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Salehzadeh S, Maleki F. Where and How Does an Organic Molecule Having a C-X Bond Release X - Anion Like an Inorganic Compound? A Theoretical Study. J Phys Chem A 2018; 122:7598-7613. [PMID: 30200765 DOI: 10.1021/acs.jpca.8b07238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this research, at first, a comparative DFT study on hydride or fluoride release from a number of known orthoamides, their fluorine derivative having a central C-F bond and some simple organic compounds, is reported. The obtained data show that orthoamides release hydride or fluoride anions much easier than do other known organic compounds studied here. Interestingly, three simulated orthoamides having a central C-F bond, spontaneously and like an inorganic compound, release fluoride anion upon dissolving in polar solvents. The calculations confirmed that hyperconjugation interactions in the initial orthoamides facilitate the anion release from these compounds. However, the data clearly show that the proper overlap of an empty p orbital of the central carbon atom with adjacent lone-pair orbitals of nitrogen atoms ( lpN → lp*C or, in other words, the pπ-pπ interaction) in the resulting carbocations is a more important factor that must be taken into consideration when designing the hydride, fluoride, or other anion releasing agents. In addition, for the first time, a mechanism of hydride and fluoride removal from the orthoamides either through their reaction with BH3 and BF3 molecules, respectively, or upon their protonation is provided. To continue and for generalization of results to other groups attached to the central carbon atom of orthoamides, the reactions of H+ with orthoamides having the CH3, OH, CN, NH2, or C5H5 substituents were studied. The results showed that in all cases and in both gas and solution phases the above substituents easily leave the carbon atom as an anion and bond to H+. Thus, we have to conclude that upon the reaction of orthoamides with usual Lewis acids, many types of substituents on their central carbon atom can leave these compounds as anions.
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Affiliation(s)
- Sadegh Salehzadeh
- Department of Chemistry , Bu-Ali Sina University , Hamedan 65174 , Iran
| | - Farahnaz Maleki
- Department of Chemistry , Bu-Ali Sina University , Hamedan 65174 , Iran
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10
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Gini A, Uygur M, Rigotti T, Alemán J, García Mancheño O. Novel Oxidative Ugi Reaction for the Synthesis of Highly Active, Visible-Light, Imide-Acridinium Organophotocatalysts. Chemistry 2018; 24:12509-12514. [DOI: 10.1002/chem.201802830] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Indexed: 12/28/2022]
Affiliation(s)
- Andrea Gini
- Institute for Organic Chemistry; University of Regensburg; 93053 Regensburg Germany
| | - Mustafa Uygur
- Organic Chemistry Institute; University of Münster; 48149 Münster Germany
| | - Thomas Rigotti
- Organic Chemistry Department; Módulo 1; Universidad Autónoma de Madrid; 28049 Madrid Spain
| | - José Alemán
- Organic Chemistry Department; Módulo 1; Universidad Autónoma de Madrid; 28049 Madrid Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem); Universidad Autónoma de Madrid; 28049 Madrid Spain
| | - Olga García Mancheño
- Organic Chemistry Institute; University of Münster; 48149 Münster Germany
- Institute for Organic Chemistry; University of Regensburg; 93053 Regensburg Germany
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11
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Pegis ML, Wise CF, Martin DJ, Mayer JM. Oxygen Reduction by Homogeneous Molecular Catalysts and Electrocatalysts. Chem Rev 2018; 118:2340-2391. [PMID: 29406708 DOI: 10.1021/acs.chemrev.7b00542] [Citation(s) in RCA: 335] [Impact Index Per Article: 55.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The oxygen reduction reaction (ORR) is a key component of biological processes and energy technologies. This Review provides a comprehensive report of soluble molecular catalysts and electrocatalysts for the ORR. The precise synthetic control and relative ease of mechanistic study for homogeneous molecular catalysts, as compared to heterogeneous materials or surface-adsorbed species, enables a detailed understanding of the individual steps of ORR catalysis. Thus, the Review places particular emphasis on ORR mechanism and thermodynamics. First, the thermochemistry of oxygen reduction and the factors influencing ORR efficiency are described to contextualize the discussion of catalytic studies that follows. Reports of ORR catalysis are presented in terms of their mechanism, with separate sections for catalysis proceeding via initial outer- and inner-sphere electron transfer to O2. The rates and selectivities (for production of H2O2 vs H2O) of these catalysts are provided, along with suggested methods for accurately comparing catalysts of different metals and ligand scaffolds that were examined under different experimental conditions.
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Affiliation(s)
- Michael L Pegis
- Department of Chemistry , Yale University , New Haven , Connecticut 06520 , United States
| | - Catherine F Wise
- Department of Chemistry , Yale University , New Haven , Connecticut 06520 , United States
| | - Daniel J Martin
- Department of Chemistry , Yale University , New Haven , Connecticut 06520 , United States
| | - James M Mayer
- Department of Chemistry , Yale University , New Haven , Connecticut 06520 , United States
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12
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Fukuzumi S, Lee Y, Nam W. Solar‐Driven Production of Hydrogen Peroxide from Water and Dioxygen. Chemistry 2018; 24:5016-5031. [DOI: 10.1002/chem.201704512] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Indexed: 12/19/2022]
Affiliation(s)
- Shunichi Fukuzumi
- Department of Chemistry and Nano Science Ewha Womans University Seoul 03760 Korea
- Graduate School of Science and Engineering Meijo University, Nagoya Aichi 468-8502 Japan
| | - Yong‐Min Lee
- Department of Chemistry and Nano Science Ewha Womans University Seoul 03760 Korea
| | - Wonwoo Nam
- Department of Chemistry and Nano Science Ewha Womans University Seoul 03760 Korea
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13
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Fukuzumi S, Lee YM, Nam W. Mechanisms of Two-Electron versus Four-Electron Reduction of Dioxygen Catalyzed by Earth-Abundant Metal Complexes. ChemCatChem 2017. [DOI: 10.1002/cctc.201701064] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Shunichi Fukuzumi
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 03760 Korea
- Faculty of Science and Engineering; Meijo University; SENTAN, Japan, Science and Technology Agency, JST; Nagoya Aichi 468-8502 Japan
| | - Yong-Min Lee
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 03760 Korea
| | - Wonwoo Nam
- Department of Chemistry and Nano Science; Ewha Womans University; Seoul 03760 Korea
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14
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Lang P, Schwalbe M. Pacman Compounds: From Energy Transfer to Cooperative Catalysis. Chemistry 2017; 23:17398-17412. [DOI: 10.1002/chem.201703675] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Indexed: 01/08/2023]
Affiliation(s)
- Philipp Lang
- Institut für Chemie; Humboldt-Universität zu Berlin; Brook-Taylor-St. 2 12489 Berlin Germany
| | - Matthias Schwalbe
- Institut für Chemie; Humboldt-Universität zu Berlin; Brook-Taylor-St. 2 12489 Berlin Germany
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15
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Monte-Pérez I, Kundu S, Chandra A, Craigo KE, Chernev P, Kuhlmann U, Dau H, Hildebrandt P, Greco C, Van Stappen C, Lehnert N, Ray K. Temperature Dependence of the Catalytic Two- versus Four-Electron Reduction of Dioxygen by a Hexanuclear Cobalt Complex. J Am Chem Soc 2017; 139:15033-15042. [DOI: 10.1021/jacs.7b07127] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Inés Monte-Pérez
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Straße 2, D-12489 Berlin, Germany
| | - Subrata Kundu
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Straße 2, D-12489 Berlin, Germany
| | - Anirban Chandra
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Straße 2, D-12489 Berlin, Germany
| | - Kathryn E. Craigo
- Department
of Chemistry, The University of Michigan, 930 N. University Ave., Ann Arbor, Michigan 48109, United States
| | - Petko Chernev
- Freie Universität Berlin, FB Physik, Arnimallee 14, D-14195 Berlin, Germany
| | - Uwe Kuhlmann
- Department
of Chemistry, Technische Universität Berlin, Straße des
17. Juni 135, 10623 Berlin, Germany
| | - Holger Dau
- Freie Universität Berlin, FB Physik, Arnimallee 14, D-14195 Berlin, Germany
| | - Peter Hildebrandt
- Department
of Chemistry, Technische Universität Berlin, Straße des
17. Juni 135, 10623 Berlin, Germany
| | - Claudio Greco
- Department
of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza
della Scienza, 1, 20126 Milan, Italy
| | - Casey Van Stappen
- Department
of Chemistry, The University of Michigan, 930 N. University Ave., Ann Arbor, Michigan 48109, United States
| | - Nicolai Lehnert
- Department
of Chemistry, The University of Michigan, 930 N. University Ave., Ann Arbor, Michigan 48109, United States
| | - Kallol Ray
- Humboldt-Universität zu Berlin, Institut für Chemie, Brook-Taylor-Straße 2, D-12489 Berlin, Germany
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16
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A stable peroxo- and hydroxido-bridged dinuclear cobalt(III) ethylenediammine 2,4-dinitrophenolate complex. INORG CHEM COMMUN 2017. [DOI: 10.1016/j.inoche.2017.07.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Shankar K, Mondal A, Li Y, Journaux Y, Baruah JB. Hydroxide-Bridged Mixed-Valence Tetranuclear Cobalt 4-Nitrophenol Inclusion Complex Showing Single Molecule Magnet Property. ChemistrySelect 2017. [DOI: 10.1002/slct.201701328] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Krapa Shankar
- Department of Chemistry; Indian Institute of Technology Guwahati; Guwahati 781 039 Assam, India
| | - Abhishake Mondal
- Sorbonne Universites; UPMC University, Paris 06, CNRS, UMR 8232, Institut Parisien de Chimie Moléculaire; F-75005 Paris France
| | - Yanling Li
- Sorbonne Universites; UPMC University, Paris 06, CNRS, UMR 8232, Institut Parisien de Chimie Moléculaire; F-75005 Paris France
| | - Yves Journaux
- Sorbonne Universites; UPMC University, Paris 06, CNRS, UMR 8232, Institut Parisien de Chimie Moléculaire; F-75005 Paris France
| | - Jubaraj B. Baruah
- Department of Chemistry; Indian Institute of Technology Guwahati; Guwahati 781 039 Assam, India
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18
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Jaworska E, Naitana ML, Stelmach E, Pomarico G, Wojciechowski M, Bulska E, Maksymiuk K, Paolesse R, Michalska A. Introducing Cobalt(II) Porphyrin/Cobalt(III) Corrole Containing Transducers for Improved Potential Reproducibility and Performance of All-Solid-State Ion-Selective Electrodes. Anal Chem 2017; 89:7107-7114. [DOI: 10.1021/acs.analchem.7b01027] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Ewa Jaworska
- Faculty
of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Mario L. Naitana
- Dipartimento
di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, Via della Ricerca Scientifica 1, 00133 Roma, Italy
| | - Emilia Stelmach
- Faculty
of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Giuseppe Pomarico
- Dipartimento
di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, Via della Ricerca Scientifica 1, 00133 Roma, Italy
| | | | - Ewa Bulska
- Faculty
of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Krzysztof Maksymiuk
- Faculty
of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Roberto Paolesse
- Dipartimento
di Scienze e Tecnologie Chimiche, Università di Roma Tor Vergata, Via della Ricerca Scientifica 1, 00133 Roma, Italy
| | - Agata Michalska
- Faculty
of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
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19
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Li ZH, Liu R, Tan ZL, He L, Lu ZL, Gong B. Aromatization of 9,10-Dihydroacridine Derivatives: Discovering a Highly Selective and Rapid-Responding Fluorescent Probe for Peroxynitrite. ACS Sens 2017; 2:501-505. [PMID: 28723194 DOI: 10.1021/acssensors.7b00139] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
As part of an effort to develop generally applicable strategies for creating probes suitable for detecting important molecular and ionic species, the oxidative aromatization of nonfluorescent 9,10-dihydroacridine derivatives triggered by peroxynitrite (ONOO-) led to the identification of compound 2H, 9-phenyl-9,10-dihydroacridine-4-carboxylic acid, as a rapid-responding fluorescent probe capable of detecting ONOO- with an extraordinary selectivity. Adding a little more than 1 equiv of ONOO- to a solution of 2H resulted in over 100-fold fluorescence enhancement. In sharp contrast, treating 2H with excessive amounts of other oxidants that often interfere with the detection of ONOO- failed to lead to noticeable fluorescence increase. The reaction of ONOO- with 2H shows a similar efficiency in the pH range of 2-8. Low cytotoxicity was observed for 2H and its aromatized product. Bioimaging experiments revealed the promising potential of 2H as a new fluorescent probe for the selective detection of intracellular ONOO-.
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Affiliation(s)
- Zhi-heng Li
- College
of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Rui Liu
- College
of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Zheng-li Tan
- College
of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Lan He
- National Institute for Food and Drug Control, Beijing 100050, China
| | - Zhong-lin Lu
- College
of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Bing Gong
- College
of Chemistry, Beijing Normal University, Beijing 100875, China
- Department
of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
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20
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Zhang W, Lai W, Cao R. Energy-Related Small Molecule Activation Reactions: Oxygen Reduction and Hydrogen and Oxygen Evolution Reactions Catalyzed by Porphyrin- and Corrole-Based Systems. Chem Rev 2016; 117:3717-3797. [PMID: 28222601 DOI: 10.1021/acs.chemrev.6b00299] [Citation(s) in RCA: 691] [Impact Index Per Article: 86.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Globally increasing energy demands and environmental concerns related to the use of fossil fuels have stimulated extensive research to identify new energy systems and economies that are sustainable, clean, low cost, and environmentally benign. Hydrogen generation from solar-driven water splitting is a promising strategy to store solar energy in chemical bonds. The subsequent combustion of hydrogen in fuel cells produces electric energy, and the only exhaust is water. These two reactions compose an ideal process to provide clean and sustainable energy. In such a process, a hydrogen evolution reaction (HER), an oxygen evolution reaction (OER) during water splitting, and an oxygen reduction reaction (ORR) as a fuel cell cathodic reaction are key steps that affect the efficiency of the overall energy conversion. Catalysts play key roles in this process by improving the kinetics of these reactions. Porphyrin-based and corrole-based systems are versatile and can efficiently catalyze the ORR, OER, and HER. Because of the significance of energy-related small molecule activation, this review covers recent progress in hydrogen evolution, oxygen evolution, and oxygen reduction reactions catalyzed by porphyrins and corroles.
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Affiliation(s)
- Wei Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University , Xi'an 710119, China
| | - Wenzhen Lai
- Department of Chemistry, Renmin University of China , Beijing 100872, China
| | - Rui Cao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University , Xi'an 710119, China.,Department of Chemistry, Renmin University of China , Beijing 100872, China
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21
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Zhang QB, Ban YL, Zhou DG, Zhou PP, Wu LZ, Liu Q. Preparation of α-Acyloxy Ketones via Visible-Light-Driven Aerobic Oxo-Acyloxylation of Olefins with Carboxylic Acids. Org Lett 2016; 18:5256-5259. [DOI: 10.1021/acs.orglett.6b02560] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qing-Bao Zhang
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, P. R. China
| | - Yong-Liang Ban
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, P. R. China
| | - Da-Gang Zhou
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, P. R. China
| | - Pan-Pan Zhou
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, P. R. China
| | - Li-Zhu Wu
- Key
Laboratory of Photochemical Conversion and Optoelectronic Materials,
Technical Institute of Physics and Chemistry, the Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Qiang Liu
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, P. R. China
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22
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Stauber JM, Müller P, Dai Y, Wu G, Nocera DG, Cummins CC. Multi-electron reactivity of a cofacial di-tin(ii) cryptand: partial reduction of sulfur and selenium and reversible generation of S 3˙ . Chem Sci 2016; 7:6928-6933. [PMID: 28567264 PMCID: PMC5450590 DOI: 10.1039/c6sc01754a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 07/04/2016] [Indexed: 11/21/2022] Open
Abstract
A cofacial di-tin(ii) hexacarboxamide cryptand that binds sulfur to form a complex containing μ-S and bridging μ-S5 ligands and acts reversibly as a source of S3˙– in DMF solution is described.
Cofacial bimetallic tin(ii) ([Sn2(mBDCA-5t)]2–, 1) and lead(ii) ([Pb2(mBDCA-5t)]2–, 2) complexes have been prepared by hexadeprotonation of hexacarboxamide cryptand mBDCA-5t-H6 together with double Sn(ii) or Pb(ii) insertion. Reaction of 1 with elemental sulfur or selenium generates di-tin polychalcogenide complexes containing μ-E and bridging μ-E5 ligands where E = S or Se, and the Sn(ii) centers have both been oxidized to Sn(iv). Solution and solid-state UV-Vis spectra of [(μ-S5)Sn2(μ-S)(mBDCA-5t)]2– (4) indicate that the complex acts reversibly as a source of S3˙– in DMF solution with a Keq = 0.012 ± 0.002. Reductive removal of all six chalcogen atoms is achieved through treatment of [(μ-E5)Sn2(μ-E)(mBDCA-5t)]2– with PR3 (R = tBu, Ph, OiPr) to produce six equiv. of the corresponding EPR3 compound with regeneration of di-tin(ii) cryptand complex 1.
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Affiliation(s)
- Julia M Stauber
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , MA 02139-4307 , USA .
| | - Peter Müller
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , MA 02139-4307 , USA .
| | - Yizhe Dai
- Department of Chemistry , Queen's University , 90 Bader Lane , Kingston , Ontario , Canada K7L 3N6 .
| | - Gang Wu
- Department of Chemistry , Queen's University , 90 Bader Lane , Kingston , Ontario , Canada K7L 3N6 .
| | - Daniel G Nocera
- Department of Chemistry and Chemical Biology , Harvard University , 12 Oxford Street , Cambridge , MA 02138-2902 , USA .
| | - Christopher C Cummins
- Department of Chemistry , Massachusetts Institute of Technology , 77 Massachusetts Avenue , Cambridge , MA 02139-4307 , USA .
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23
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Han Y, Fang H, Jing H, Sun H, Lei H, Lai W, Cao R. Singly versus Doubly Reduced Nickel Porphyrins for Proton Reduction: Experimental and Theoretical Evidence for a Homolytic Hydrogen-Evolution Reaction. Angew Chem Int Ed Engl 2016; 55:5457-62. [PMID: 27028563 PMCID: PMC5071703 DOI: 10.1002/anie.201510001] [Citation(s) in RCA: 111] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 02/25/2015] [Indexed: 11/23/2022]
Abstract
A nickel(II) porphyrin Ni‐P (P=porphyrin) bearing four meso‐C6F5 groups to improve solubility and activity was used to explore different hydrogen‐evolution‐reaction (HER) mechanisms. Doubly reduced Ni‐P ([Ni‐P]2−) was involved in H2 production from acetic acid, whereas a singly reduced species ([Ni‐P]−) initiated HER with stronger trifluoroacetic acid (TFA). High activity and stability of Ni‐P were observed in catalysis, with a remarkable ic/ip value of 77 with TFA at a scan rate of 100 mV s−1 and 20 °C. Electrochemical, stopped‐flow, and theoretical studies indicated that a hydride species [H‐Ni‐P] is formed by oxidative protonation of [Ni‐P]−. Subsequent rapid bimetallic homolysis to give H2 and Ni‐P is probably involved in the catalytic cycle. HER cycling through this one‐electron‐reduction and homolysis mechanism has been proposed previously but rarely validated. The present results could thus have broad implications for the design of new exquisite cycles for H2 generation.
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Affiliation(s)
- Yongzhen Han
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Huayi Fang
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Huize Jing
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Huiling Sun
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Haitao Lei
- Department of Chemistry, Renmin University of China, Beijing, 100872, China
| | - Wenzhen Lai
- Department of Chemistry, Renmin University of China, Beijing, 100872, China.
| | - Rui Cao
- Department of Chemistry, Renmin University of China, Beijing, 100872, China. .,School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China.
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24
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Han Y, Fang H, Jing H, Sun H, Lei H, Lai W, Cao R. Singly versus Doubly Reduced Nickel Porphyrins for Proton Reduction: Experimental and Theoretical Evidence for a Homolytic Hydrogen‐Evolution Reaction. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510001] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yongzhen Han
- Department of Chemistry Renmin University of China Beijing 100872 China
| | - Huayi Fang
- College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
| | - Huize Jing
- College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
| | - Huiling Sun
- Department of Chemistry Renmin University of China Beijing 100872 China
| | - Haitao Lei
- Department of Chemistry Renmin University of China Beijing 100872 China
| | - Wenzhen Lai
- Department of Chemistry Renmin University of China Beijing 100872 China
| | - Rui Cao
- Department of Chemistry Renmin University of China Beijing 100872 China
- School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710119 China
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25
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El-Remaily MAEAAA, Elhady O. Cobalt(III)–porphyrin complex (CoTCPP) as an efficient and recyclable homogeneous catalyst for the synthesis of tryptanthrin in aqueous media. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2015.12.052] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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26
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Turovska B, Lund H, Lūsis V, Lielpētere A, Liepiņš E, Beljakovs S, Goba I, Stradiņš J. Photoinduced 1,2,3,4-tetrahydropyridine ring conversions. Beilstein J Org Chem 2015; 11:2166-70. [PMID: 26664638 PMCID: PMC4660982 DOI: 10.3762/bjoc.11.234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 10/27/2015] [Indexed: 01/28/2023] Open
Abstract
Stable heterocyclic hydroperoxide can be easily prepared as a product of fast oxidation of a 1,2,3,4-tetrahydropyridine by (3)O2 if the solution is exposed to sunlight. The driving force for the photoinduced electron transfer is calculated from electrochemical and spectroscopic data. The outcome of the reaction depends on the light intensity and the concentration of O2. In the solid state the heterocyclic hydroperoxide is stable; in solution it is involved in further reactions.
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Affiliation(s)
- Baiba Turovska
- Physical-organic Chemistry Laboratory, Latvian Institute of Organic Synthesis, 21 Aizkraukles Str., Riga LV-1006, Latvia
| | - Henning Lund
- Department of Organic Chemistry, Aarhus University, Langelandsgade 140, DK 8000 Aarhus, Denmark
| | - Viesturs Lūsis
- Physical-organic Chemistry Laboratory, Latvian Institute of Organic Synthesis, 21 Aizkraukles Str., Riga LV-1006, Latvia
| | - Anna Lielpētere
- Physical-organic Chemistry Laboratory, Latvian Institute of Organic Synthesis, 21 Aizkraukles Str., Riga LV-1006, Latvia
| | - Edvards Liepiņš
- Physical-organic Chemistry Laboratory, Latvian Institute of Organic Synthesis, 21 Aizkraukles Str., Riga LV-1006, Latvia
| | - Sergejs Beljakovs
- Physical-organic Chemistry Laboratory, Latvian Institute of Organic Synthesis, 21 Aizkraukles Str., Riga LV-1006, Latvia
| | - Inguna Goba
- Physical-organic Chemistry Laboratory, Latvian Institute of Organic Synthesis, 21 Aizkraukles Str., Riga LV-1006, Latvia
| | - Jānis Stradiņš
- Physical-organic Chemistry Laboratory, Latvian Institute of Organic Synthesis, 21 Aizkraukles Str., Riga LV-1006, Latvia
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27
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Mase K, Ohkubo K, Xue Z, Yamada H, Fukuzumi S. Catalytic two-electron reduction of dioxygen catalysed by metal-free [14]triphyrin(2.1.1). Chem Sci 2015; 6:6496-6504. [PMID: 30090268 PMCID: PMC6054055 DOI: 10.1039/c5sc02465j] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 08/02/2015] [Indexed: 02/01/2023] Open
Abstract
The catalytic two-electron reduction of dioxygen (O2) by octamethylferrocene (Me8Fc) occurs with a metal-free triphyrin (HTrip) in the presence of perchloric acid (HClO4) in benzonitrile (PhCN) at 298 K to yield Me8Fc+ and H2O2. Detailed kinetic analysis has revealed that the catalytic two-electron reduction of O2 by Me8Fc with HTrip proceeds via proton-coupled electron transfer from Me8Fc to HTrip to produce H3Trip˙+, followed by a second electron transfer from Me8Fc to H3Trip˙+ to produce H3Trip, which is oxidized by O2via formation of the H3Trip/O2 complex to yield H2O2. The rate-determining step in the catalytic cycle is hydrogen atom transfer from H3Trip to O2 in the H3Trip/O2 complex to produce the radical pair (H3Trip˙+ HO2˙) as an intermediate, which was detected as a triplet EPR signal with fine-structure by the EPR measurements at low temperature. The distance between the two unpaired electrons in the radical pair was determined to be 4.9 Å from the zero-field splitting constant (D).
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Affiliation(s)
- Kentaro Mase
- Department of Material and Life Science , Graduate School of Engineering , ALCA and SENTAN , Japan Science and Technology Agency (JST) , Osaka University , Suita , Osaka 565-0871 , Japan .
| | - Kei Ohkubo
- Department of Material and Life Science , Graduate School of Engineering , ALCA and SENTAN , Japan Science and Technology Agency (JST) , Osaka University , Suita , Osaka 565-0871 , Japan . .,Department of Chemistry and Nano Science , Ewha Womans University , Seoul 120-750 , Korea
| | - Zhaoli Xue
- Graduate School of Materials Science , Nara Institute of Science and Technology , CREST , Japan Science and Technology Agency (JST) , Ikoma , Nara 630-0192 , Japan .
| | - Hiroko Yamada
- Graduate School of Materials Science , Nara Institute of Science and Technology , CREST , Japan Science and Technology Agency (JST) , Ikoma , Nara 630-0192 , Japan .
| | - Shunichi Fukuzumi
- Department of Material and Life Science , Graduate School of Engineering , ALCA and SENTAN , Japan Science and Technology Agency (JST) , Osaka University , Suita , Osaka 565-0871 , Japan . .,Department of Chemistry and Nano Science , Ewha Womans University , Seoul 120-750 , Korea.,Faculty of Science and Engineering , ALCA , SENTAN , Japan Science and Technology Agency (JST) , Meijo University , Nagoya , Aichi 468-0073 , Japan
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28
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Kakuda S, Rolle C, Ohkubo K, Siegler MA, Karlin KD, Fukuzumi S. Lewis acid-induced change from four- to two-electron reduction of dioxygen catalyzed by copper complexes using scandium triflate. J Am Chem Soc 2015; 137:3330-7. [PMID: 25659416 PMCID: PMC4630010 DOI: 10.1021/ja512584r] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Mononuclear copper complexes, [(tmpa)Cu(II)(CH3CN)](ClO4)2 (1, tmpa = tris(2-pyridylmethyl)amine) and [(BzQ)Cu(II)(H2O)2](ClO4)2 (2, BzQ = bis(2-quinolinylmethyl)benzylamine)], act as efficient catalysts for the selective two-electron reduction of O2 by ferrocene derivatives in the presence of scandium triflate (Sc(OTf)3) in acetone, whereas 1 catalyzes the four-electron reduction of O2 by the same reductant in the presence of Brønsted acids such as triflic acid. Following formation of the peroxo-bridged dicopper(II) complex [(tmpa)Cu(II)(O2)Cu(II)(tmpa)](2+), the two-electron reduced product of O2 with Sc(3+) is observed to be scandium peroxide ([Sc(III)(O2(2-))](+)). In the presence of 3 equiv of hexamethylphosphoric triamide (HMPA), [Sc(III)(O2(2-))](+) was oxidized by [Fe(bpy)3](3+) (bpy = 2,2-bipyridine) to the known superoxide species [(HMPA)3Sc(III)(O2(•-))](2+) as detected by EPR spectroscopy. A kinetic study revealed that the rate-determining step of the catalytic cycle for the two-electron reduction of O2 with 1 is electron transfer from Fc* to 1 to give a cuprous complex which is highly reactive toward O2, whereas the rate-determining step with 2 is changed to the reaction of the cuprous complex with O2 following electron transfer from ferrocene derivatives to 2. The explanation for the change in catalytic O2-reaction stoichiometry from four-electron with Brønsted acids to two-electron reduction in the presence of Sc(3+) and also for the change in the rate-determining step is clarified based on a kinetics interrogation of the overall catalytic cycle as well as each step of the catalytic cycle with study of the observed effects of Sc(3+) on copper-oxygen intermediates.
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Affiliation(s)
- Saya Kakuda
- Department of Material and Life Science, Division of Advanced Science and Biotechnology, Graduate School of Engineering, ALCA (JST), Osaka University, Suita, Osaka 565-0871, Japan
| | - Clarence Rolle
- Department of Chemistry, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Kei Ohkubo
- Department of Material and Life Science, Division of Advanced Science and Biotechnology, Graduate School of Engineering, ALCA (JST), Osaka University, Suita, Osaka 565-0871, Japan
| | - Maxime A. Siegler
- Department of Chemistry, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Kenneth D. Karlin
- Department of Chemistry, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Shunichi Fukuzumi
- Department of Material and Life Science, Division of Advanced Science and Biotechnology, Graduate School of Engineering, ALCA (JST), Osaka University, Suita, Osaka 565-0871, Japan
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29
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Mase K, Ohkubo K, Fukuzumi S. Much Enhanced Catalytic Reactivity of Cobalt Chlorin Derivatives on Two-Electron Reduction of Dioxygen to Produce Hydrogen Peroxide. Inorg Chem 2015; 54:1808-15. [DOI: 10.1021/ic502678k] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Kentaro Mase
- Department of Material and Life Science, Graduate School of Engineering,
ALCA, Japan Science and Technology Agency (JST), Osaka University, Suita, Osaka 565-0871, Japan
| | - Kei Ohkubo
- Department of Material and Life Science, Graduate School of Engineering,
ALCA, Japan Science and Technology Agency (JST), Osaka University, Suita, Osaka 565-0871, Japan
| | - Shunichi Fukuzumi
- Department of Material and Life Science, Graduate School of Engineering,
ALCA, Japan Science and Technology Agency (JST), Osaka University, Suita, Osaka 565-0871, Japan
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30
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D'Souza F, Imahori H. Preface — Special Issue in Honor of Professor Shunichi Fukuzumi. J PORPHYR PHTHALOCYA 2015. [DOI: 10.1142/s1088424615020010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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31
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Liu S, Mase K, Bougher C, Hicks SD, Abu-Omar MM, Fukuzumi S. High-valent chromium-oxo complex acting as an efficient catalyst precursor for selective two-electron reduction of dioxygen by a ferrocene derivative. Inorg Chem 2014; 53:7780-8. [PMID: 24988040 DOI: 10.1021/ic5013457] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Efficient catalytic two-electron reduction of dioxygen (O2) by octamethylferrocene (Me8Fc) produced hydrogen peroxide (H2O2) using a high-valent chromium(V)-oxo corrole complex, [(tpfc)Cr(V)(O)] (tpfc = tris(pentafluorophenyl)corrole) as a catalyst precursor in the presence of trifluoroacetic acid (TFA) in acetonitrile (MeCN). The facile two-electron reduction of [(tpfc)Cr(V)(O)] by 2 equiv of Me8Fc in the presence of excess TFA produced the corresponding chromium(III) corrole [(tpfc)Cr(III)(OH2)] via fast electron transfer from Me8Fc to [(tpfc)Cr(V)(O)] followed by double protonation of [(tpfc)Cr(IV)(O)](-) and facile second-electron transfer from Me8Fc. The rate-determining step in the catalytic two-electron reduction of O2 by Me8Fc in the presence of excess TFA is inner-sphere electron transfer from [(tpfc)Cr(III)(OH2)] to O2 to produce the chromium(IV) superoxo species [(tpfc)Cr(IV)(O2(•-))], followed by fast proton-coupled electron transfer reduction of [(tpfc)Cr(IV)(O2(•-))] by Me8Fc to yield H2O2, accompanied by regeneration of [(tpfc)Cr(III)(OH2)]. Thus, although the catalytic two-electron reduction of O2 by Me8Fc was started by [(tpfc)Cr(V)(O)], no regeneration of [(tpfc)Cr(V)(O)] was observed in the presence of excess TFA, regardless of the tetragonal chromium complex being to the left of the oxo wall. In the presence of a stoichiometric amount of TFA, however, disproportionation of [(tfpc)Cr(IV)(O)](-) occurred via the protonated species [(tpfc)Cr(IV)(OH)] to produce [(tpfc)Cr(III)(OH2)] and [(tpfc)Cr(V)(O)].
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Affiliation(s)
- Shuo Liu
- Department of Chemistry, Purdue University , 560 Oval Drive, West Lafayette, Indiana 47907, United States
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Nguyen AI, Hadt RG, Solomon EI, Tilley TD. Efficient C-H Bond Activations via O 2 Cleavage by a Dianionic Cobalt(II) Complex. Chem Sci 2014; 5:2874-2878. [PMID: 25071930 PMCID: PMC4111274 DOI: 10.1039/c4sc00108g] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A dianionic, square planar cobalt(II) complex reacts with O2 in the presence of acetonitrile to give a cyanomethylcobalt(III) complex formed by C-H bond cleavage. Interestingly, PhIO and p-tolylazide react similarly to give the same cyanomethylcobalt(III) complex. Competition studies with various hydrocarbon substrates indicate that the rate of C-H bond cleavage greatly depends on the p Ka of the C-H bond, rather than on the C-H bond dissociation energy. Kinetic isotope experiments reveal a moderate KIE value of ca. 3.5 using either O2 or PhIO. The possible involvement of a cobalt(IV) oxo species in this chemistry is discussed.
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Affiliation(s)
- Andy I Nguyen
- Department of Chemistry, University of California at Berkeley, Berkeley, California 94720-1460.
| | - Ryan G Hadt
- Department of Chemistry, Stanford University, Stanford, California 94305.
| | - Edward I Solomon
- Department of Chemistry, Stanford University, Stanford, California 94305.
| | - T Don Tilley
- Department of Chemistry, University of California at Berkeley, Berkeley, California 94720-1460.
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McSkimming A, Colbran SB. The coordination chemistry of organo-hydride donors: new prospects for efficient multi-electron reduction. Chem Soc Rev 2013; 42:5439-88. [PMID: 23507957 DOI: 10.1039/c3cs35466k] [Citation(s) in RCA: 116] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
In biological reduction processes the dihydronicotinamides NAD(P)H often transfer hydride to an unsaturated substrate bound within an enzyme active site. In many cases, metal ions in the active site bind, polarize and thereby activate the substrate to direct attack by hydride from NAD(P)H cofactor. This review looks more widely at the metal coordination chemistry of organic donors of hydride ion--organo-hydrides--such as dihydronicotinamides, other dihydropyridines including Hantzsch's ester and dihydroacridine derivatives, those derived from five-membered heterocycles including the benzimidazolines and benzoxazolines, and all-aliphatic hydride donors such as hexadiene and hexadienyl anion derivatives. The hydride donor properties--hydricities--of organo-hydrides and how these are affected by metal ions are discussed. The coordination chemistry of organo-hydrides is critically surveyed and the use of metal-organo-hydride systems in electrochemically-, photochemically- and chemically-driven reductions of unsaturated organic and inorganic (e.g. carbon dioxide) substrates is highlighted. The sustainable electrocatalytic, photochemical or chemical regeneration of organo-hydrides such as NAD(P)H, including for driving enzyme-catalysed reactions, is summarised and opportunities for development are indicated. Finally, new prospects are identified for metal-organo-hydride systems as catalysts for organic transformations involving 'hydride-borrowing' and for sustainable multi-electron reductions of unsaturated organic and inorganic substrates directly driven by electricity or light or by renewable reductants such as formate/formic acid.
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Affiliation(s)
- Alex McSkimming
- School of Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia
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Igarashi T, Tayama E, Iwamoto H, Hasegawa E. Carbon–carbon bond formation via benzoyl umpolung attained by photoinduced electron-transfer with benzimidazolines. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.10.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Kakuda S, Peterson RL, Ohkubo K, Karlin KD, Fukuzumi S. Enhanced catalytic four-electron dioxygen (O2) and two-electron hydrogen peroxide (H2O2) reduction with a copper(II) complex possessing a pendant ligand pivalamido group. J Am Chem Soc 2013; 135:6513-22. [PMID: 23509853 PMCID: PMC3682076 DOI: 10.1021/ja3125977] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A copper complex, [(PV-tmpa)Cu(II)](ClO4)2 (1) [PV-tmpa = bis(pyrid-2-ylmethyl){[6-(pivalamido)pyrid-2-yl]methyl}amine], acts as a more efficient catalyst for the four-electron reduction of O2 by decamethylferrocene (Fc*) in the presence of trifluoroacetic acid (CF3COOH) in acetone as compared with the corresponding copper complex without a pivalamido group, [(tmpa)Cu(II)](ClO4)2 (2) (tmpa = tris(2-pyridylmethyl)amine). The rate constant (k(obs)) of formation of decamethylferrocenium ion (Fc*(+)) in the catalytic four-electron reduction of O2 by Fc* in the presence of a large excess CF3COOH and O2 obeyed first-order kinetics. The k(obs) value was proportional to the concentration of catalyst 1 or 2, whereas the k(obs) value remained constant irrespective of the concentration of CF3COOH or O2. This indicates that electron transfer from Fc* to 1 or 2 is the rate-determining step in the catalytic cycle of the four-electron reduction of O2 by Fc* in the presence of CF3COOH. The second-order catalytic rate constant (k(cat)) for 1 is 4 times larger than the corresponding value determined for 2. With the pivalamido group in 1 compared to 2, the Cu(II)/Cu(I) potentials are -0.23 and -0.05 V vs SCE, respectively. However, during catalytic turnover, the CF3COO(-) anion present readily binds to 2 shifting the resulting complex's redox potential to -0.35 V. The pivalamido group in 1 is found to inhibit anion binding. The overall effect is to make 1 easier to reduce (relative to 2) during catalysis, accounting for the relative k(cat) values observed. 1 is also an excellent catalyst for the two-electron two-proton reduction of H2O2 to water and is also more efficient than is 2. For both complexes, reaction rates are greater than for the overall four-electron O2-reduction to water, an important asset in the design of catalysts for the latter.
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Affiliation(s)
- Saya Kakuda
- Department of Material and Life Science, Division of Advanced Science and Biotechnology, Graduate School of Engineering, ALCA (JST), Osaka University, Suita, Osaka 565-0871, Japan
| | - Ryan L. Peterson
- Department of Chemistry, The Johns Hopkins University, Baltimore, MD 21218, USA
| | - Kei Ohkubo
- Department of Material and Life Science, Division of Advanced Science and Biotechnology, Graduate School of Engineering, ALCA (JST), Osaka University, Suita, Osaka 565-0871, Japan
| | - Kenneth D. Karlin
- Department of Chemistry, The Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Bioinspired Science, Ewha Womans University, Seoul 120-750, Korea
| | - Shunichi Fukuzumi
- Department of Chemistry, The Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Bioinspired Science, Ewha Womans University, Seoul 120-750, Korea
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Das D, Lee YM, Ohkubo K, Nam W, Karlin KD, Fukuzumi S. Acid-induced mechanism change and overpotential decrease in dioxygen reduction catalysis with a dinuclear copper complex. J Am Chem Soc 2013; 135:4018-26. [PMID: 23442145 DOI: 10.1021/ja312256u] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Catalytic four-electron reduction of O2 by ferrocene (Fc) and 1,1'-dimethylferrocene (Me2Fc) occurs efficiently with a dinuclear copper(II) complex [Cu(II)2(XYLO)(OH)](2+) (1), where XYLO is a m-xylene-linked bis[(2-(2-pyridyl)ethyl)amine] dinucleating ligand with copper-bridging phenolate moiety], in the presence of perchloric acid (HClO4) in acetone at 298 K. The hydroxide and phenoxo group in [Cu(II)2(XYLO)(OH)](2+) (1) undergo protonation with HClO4 to produce [Cu(II)2(XYLOH)](4+) (2) where the two copper centers become independent and the reduction potential shifts from -0.68 V vs SCE in the absence of HClO4 to 0.47 V; this makes possible the use of relatively weak one-electron reductants such as Fc and Me2Fc, significantly reducing the effective overpotential in the catalytic O2-reduction reaction. The mechanism of the reaction has been clarified on the basis of kinetic studies on the overall catalytic reaction as well as each step in the catalytic cycle and also by low-temperature detection of intermediates. The O2-binding to the fully reduced complex [Cu(I)2(XYLOH)](2+) (3) results in the reversible formation of the hydroperoxo complex ([Cu(II)2(XYLO)(OOH)](2+)) (4), followed by proton-coupled electron-transfer (PCET) reduction to complete the overall O2-to-2H2O catalytic conversion.
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Affiliation(s)
- Dipanwita Das
- Department of Bioinspired Science, Ewha Womans University, Seoul 120-750, Korea
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Mase K, Ohkubo K, Fukuzumi S. Efficient Two-Electron Reduction of Dioxygen to Hydrogen Peroxide with One-Electron Reductants with a Small Overpotential Catalyzed by a Cobalt Chlorin Complex. J Am Chem Soc 2013; 135:2800-8. [DOI: 10.1021/ja312199h] [Citation(s) in RCA: 100] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Kentaro Mase
- Department of Material and Life Science, Graduate
School of Engineering, ALCA, Japan Science and Technology Agency (JST), Osaka University, Suita, Osaka 565-0871, Japan
| | - Kei Ohkubo
- Department of Material and Life Science, Graduate
School of Engineering, ALCA, Japan Science and Technology Agency (JST), Osaka University, Suita, Osaka 565-0871, Japan
| | - Shunichi Fukuzumi
- Department of Material and Life Science, Graduate
School of Engineering, ALCA, Japan Science and Technology Agency (JST), Osaka University, Suita, Osaka 565-0871, Japan
- Department of Bioinspired Science, Ewha Womans University, Seoul 120-750, Korea
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38
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Khan IA, Balaramnavar VM, Saxena AK. Identification and optimization of novel pyrimido-isoxazolidine and oxazine as selective hydride donors. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.09.105] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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39
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Dabiri M, Salehi P, Bahramnejad M, Sherafat F, Bararjanian M. Facile and Highly Efficient Procedure for the Synthesis of Triazolyl Methoxyphenyl 1,8-Dioxo-decahydroacridines via One-Pot, Pseudo-Five-Component Reaction. SYNTHETIC COMMUN 2012. [DOI: 10.1080/00397911.2011.577263] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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40
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Wakabayashi R, Kurahashi T, Matsubara S. Cobalt(III) Porphyrin Catalyzed Aza-Diels–Alder Reaction. Org Lett 2012; 14:4794-7. [DOI: 10.1021/ol3020946] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ryota Wakabayashi
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Takuya Kurahashi
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Seijiro Matsubara
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
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41
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Han X, Hao W, Zhu XQ, Parker VD. A Thermodynamic and Kinetic Study of Hydride Transfer of a Caffeine Derivative. J Org Chem 2012; 77:6520-9. [DOI: 10.1021/jo301042d] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaozhen Han
- State Key Laboratory of Elemento-Organic
Chemistry, Department of Chemistry, Nankai University, Tianjin 300071, China
| | - Weifang Hao
- Department of Chemistry and
Biochemistry, Utah State University, Logan,
Utah 84322, United States
| | - Xiao-Qing Zhu
- State Key Laboratory of Elemento-Organic
Chemistry, Department of Chemistry, Nankai University, Tianjin 300071, China
| | - Vernon D. Parker
- Department of Chemistry and
Biochemistry, Utah State University, Logan,
Utah 84322, United States
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42
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Fukuzumi S, Mandal S, Mase K, Ohkubo K, Park H, Benet-Buchholz J, Nam W, Llobet A. Catalytic Four-Electron Reduction of O2 via Rate-Determining Proton-Coupled Electron Transfer to a Dinuclear Cobalt-μ-1,2-peroxo Complex. J Am Chem Soc 2012; 134:9906-9. [DOI: 10.1021/ja303674n] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shunichi Fukuzumi
- Department
of Material and Life
Science, Graduate School of Engineering, Osaka University, and ALCA, Japan Science and Technology Agency, Suita, Osaka 565-0871,
Japan
- Department of Bioinspired
Science, Ewha Womans University, Seoul
120-750, Korea
| | - Sukanta Mandal
- Department of Bioinspired
Science, Ewha Womans University, Seoul
120-750, Korea
- Institute of Chemical Research of Catalonia, Avinguda Països Catalans
16, E-43007 Tarragona, Spain
| | - Kentaro Mase
- Department
of Material and Life
Science, Graduate School of Engineering, Osaka University, and ALCA, Japan Science and Technology Agency, Suita, Osaka 565-0871,
Japan
| | - Kei Ohkubo
- Department
of Material and Life
Science, Graduate School of Engineering, Osaka University, and ALCA, Japan Science and Technology Agency, Suita, Osaka 565-0871,
Japan
| | - Hyejin Park
- Department of Bioinspired
Science, Ewha Womans University, Seoul
120-750, Korea
| | - Jordi Benet-Buchholz
- Institute of Chemical Research of Catalonia, Avinguda Països Catalans
16, E-43007 Tarragona, Spain
| | - Wonwoo Nam
- Department of Bioinspired
Science, Ewha Womans University, Seoul
120-750, Korea
| | - Antoni Llobet
- Department of Bioinspired
Science, Ewha Womans University, Seoul
120-750, Korea
- Institute of Chemical Research of Catalonia, Avinguda Països Catalans
16, E-43007 Tarragona, Spain
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43
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Xu HJ, Zhu FF, Shen YY, Wan X, Feng YS. Baeyer–Villiger Oxidation of Cyclobutanones with 10-Methylacridinium as an Efficient Organocatalyst. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.03.108] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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44
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Fukuzumi S, Tahsini L, Lee YM, Ohkubo K, Nam W, Karlin KD. Factors that control catalytic two- versus four-electron reduction of dioxygen by copper complexes. J Am Chem Soc 2012; 134:7025-35. [PMID: 22462521 DOI: 10.1021/ja211656g] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The selective two-electron reduction of O(2) by one-electron reductants such as decamethylferrocene (Fc*) and octamethylferrocene (Me(8)Fc) is efficiently catalyzed by a binuclear Cu(II) complex [Cu(II)(2)(LO)(OH)](2+) (D1) {LO is a binucleating ligand with copper-bridging phenolate moiety} in the presence of trifluoroacetic acid (HOTF) in acetone. The protonation of the hydroxide group of [Cu(II)(2)(LO)(OH)](2+) with HOTF to produce [Cu(II)(2)(LO)(OTF)](2+) (D1-OTF) makes it possible for this to be reduced by 2 equiv of Fc* via a two-step electron-transfer sequence. Reactions of the fully reduced complex [Cu(I)(2)(LO)](+) (D3) with O(2) in the presence of HOTF led to the low-temperature detection of the absorption spectra due to the peroxo complex [Cu(II)(2)(LO)(OO)] (D) and the protonated hydroperoxo complex [Cu(II)(2)(LO)(OOH)](2+) (D4). No further Fc* reduction of D4 occurs, and it is instead further protonated by HOTF to yield H(2)O(2) accompanied by regeneration of [Cu(II)(2)(LO)(OTF)](2+) (D1-OTF), thus completing the catalytic cycle for the two-electron reduction of O(2) by Fc*. Kinetic studies on the formation of Fc*(+) under catalytic conditions as well as for separate examination of the electron transfer from Fc* to D1-OTF reveal there are two important reaction pathways operating. One is a rate-determining second reduction of D1-OTF, thus electron transfer from Fc* to a mixed-valent intermediate [Cu(II)Cu(I)(LO)](2+) (D2), which leads to [Cu(I)(2)(LO)](+) that is coupled with O(2) binding to produce [Cu(II)(2)(LO)(OO)](+) (D). The other involves direct reaction of O(2) with the mixed-valent compound D2 followed by rapid Fc* reduction of a putative superoxo-dicopper(II) species thus formed, producing D.
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Affiliation(s)
- Shunichi Fukuzumi
- Department of Bioinspired Science, Ewha Womans University, Seoul 120-750, Korea.
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45
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Chen P, Lau H, Habermeyer B, Gros CP, Barbe JM, Kadish KM. Electrochemistry, spectroelectrochemistry and catalytic activity of biscobalt bisporphyrin dyads towards dioxygen reduction. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424611003410] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Three face-to-face biscobalt bisporphyrin dyads, including one incorporating a copper(II) ion inside the linker, were synthesized and characterized both spectroscopically and electrochemically in three non-aqueous solvents, dichloromethane, benzonitrile and pyridine. The electrocatalytic reduction of dioxygen with these derivatives on an electrode surface in 1.0 M HClO4 was also investigated and the results are compared to that obtained with "regular" Pacman biscobalt bisporphyrins under the same experimental conditions. Surprisingly, the tris-metal species ( Cu-bisCo ) catalyzes the reduction of O2 mainly via a 2e- transfer process, leading to H2O2 , while the bis-metal (bisCo) catalyst produces H2O via a four electron, four proton process.
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Affiliation(s)
- Ping Chen
- Department of Chemistry, University of Houston, Houston, TX 77204-5003, USA
| | - Hoyi Lau
- Department of Chemistry, University of Houston, Houston, TX 77204-5003, USA
| | - Benoit Habermeyer
- Université de Bourgogne, ICMUB (UMR 5260), 9, Avenue Alain Savary, BP 47870, 21078 Dijon Cedex, France
| | - Claude P. Gros
- Université de Bourgogne, ICMUB (UMR 5260), 9, Avenue Alain Savary, BP 47870, 21078 Dijon Cedex, France
| | - Jean-Michel Barbe
- Université de Bourgogne, ICMUB (UMR 5260), 9, Avenue Alain Savary, BP 47870, 21078 Dijon Cedex, France
| | - Karl M. Kadish
- Department of Chemistry, University of Houston, Houston, TX 77204-5003, USA
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46
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Honda T, Kojima T, Fukuzumi S. Proton-Coupled Electron-Transfer Reduction of Dioxygen Catalyzed by a Saddle-Distorted Cobalt Phthalocyanine. J Am Chem Soc 2012; 134:4196-206. [DOI: 10.1021/ja209978q] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tatsuhiko Honda
- Department of Material and Life Science, Graduate School
of Engineering, Osaka University, ALCA,
Japan Science and Technology Agency (JST), Suita, Osaka 565-0871,
Japan
| | - Takahiko Kojima
- Department of Chemistry, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan
| | - Shunichi Fukuzumi
- Department of Material and Life Science, Graduate School
of Engineering, Osaka University, ALCA,
Japan Science and Technology Agency (JST), Suita, Osaka 565-0871,
Japan
- Department of Bioinspired Science, Ewha Womans University, Seoul 120-750, Korea
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47
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Tahsini L, Kotani H, Lee YM, Cho J, Nam W, Karlin KD, Fukuzumi S. Electron-transfer reduction of dinuclear copper peroxo and bis-μ-oxo complexes leading to the catalytic four-electron reduction of dioxygen to water. Chemistry 2012; 18:1084-93. [PMID: 22237962 PMCID: PMC3316124 DOI: 10.1002/chem.201103215] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2011] [Indexed: 11/11/2022]
Abstract
The four-electron reduction of dioxygen by decamethylferrocene (Fc*) to water is efficiently catalyzed by a binuclear copper(II) complex (1) and a mononuclear copper(II) complex (2) in the presence of trifluoroacetic acid in acetone at 298 K. Fast electron transfer from Fc* to 1 and 2 affords the corresponding Cu(I) complexes, which react at low temperature (193 K) with dioxygen to afford the η(2):η(2)-peroxo dicopper(II) (3) and bis-μ-oxo dicopper(III) (4) intermediates, respectively. The rate constants for electron transfer from Fc* and octamethylferrocene (Me(8)Fc) to 1 as well as electron transfer from Fc* and Me(8)Fc to 3 were determined at various temperatures, leading to activation enthalpies and entropies. The activation entropies of electron transfer from Fc* and Me(8)Fc to 1 were determined to be close to zero, as expected for outer-sphere electron-transfer reactions without formation of any intermediates. For electron transfer from Fc* and Me(8)Fc to 3, the activation entropies were also found to be close to zero. Such agreement indicates that the η(2):η(2)-peroxo complex (3) is directly reduced by Fc* rather than via the conversion to the corresponding bis-μ-oxo complex, followed by the electron-transfer reduction by Fc* leading to the four-electron reduction of dioxygen to water. The bis-μ-oxo species (4) is reduced by Fc* with a much faster rate than the η(2):η(2)-peroxo complex (3), but this also leads to the four-electron reduction of dioxygen to water.
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Affiliation(s)
- Laleh Tahsini
- Department of Bioinspired Science, Ewha Womans University, Seoul 120-750 (Korea)
| | - Hiroaki Kotani
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, ALCA (Japan) Science and Technology Agency (JST), Suita, Osaka 565-0871 (Japan), Fax: (+81)-6-6879-7368
| | - Yong-Min Lee
- Department of Bioinspired Science, Ewha Womans University, Seoul 120-750 (Korea)
| | - Jaeheung Cho
- Department of Bioinspired Science, Ewha Womans University, Seoul 120-750 (Korea)
| | - Wonwoo Nam
- Department of Bioinspired Science, Ewha Womans University, Seoul 120-750 (Korea)
| | - Kenneth D. Karlin
- Department of Bioinspired Science, Ewha Womans University, Seoul 120-750 (Korea)
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218 (USA)
| | - Shunichi Fukuzumi
- Department of Bioinspired Science, Ewha Womans University, Seoul 120-750 (Korea)
- Department of Material and Life Science, Graduate School of Engineering, Osaka University, ALCA (Japan) Science and Technology Agency (JST), Suita, Osaka 565-0871 (Japan), Fax: (+81)-6-6879-7368
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48
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Nagai M, Sanpei H, Shirakura M. Cobalt porphyrin–tungsten polyoxometalate anion as non-noble metal cathode catalyst in a fuel cell. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm15236c] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Barbe JM, Habermeyer B, Khoury T, Gros CP, Richard P, Chen P, Kadish KM. Three-Metal Coordination by Novel Bisporphyrin Architectures. Inorg Chem 2010; 49:8929-40. [DOI: 10.1021/ic101170k] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jean-Michel Barbe
- Université de Bourgogne, ICMUB (UMR 5260), 9, Avenue Alain Savary, BP 47870, 21078 Dijon Cedex, France
| | - Benoit Habermeyer
- Université de Bourgogne, ICMUB (UMR 5260), 9, Avenue Alain Savary, BP 47870, 21078 Dijon Cedex, France
| | - Tony Khoury
- Université de Bourgogne, ICMUB (UMR 5260), 9, Avenue Alain Savary, BP 47870, 21078 Dijon Cedex, France
| | - Claude P. Gros
- Université de Bourgogne, ICMUB (UMR 5260), 9, Avenue Alain Savary, BP 47870, 21078 Dijon Cedex, France
| | - Philippe Richard
- Université de Bourgogne, ICMUB (UMR 5260), 9, Avenue Alain Savary, BP 47870, 21078 Dijon Cedex, France
| | - Ping Chen
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003
| | - Karl M. Kadish
- Department of Chemistry, University of Houston, Houston, Texas 77204-5003
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Huang X, Zhang T. Cascade nucleophilic addition-cyclic Michael addition of arynes and phenols/anilines bearing ortho alpha,beta-unsaturated groups: facile synthesis of 9-functionalized xanthenes/acridines. J Org Chem 2010; 75:506-9. [PMID: 20020766 DOI: 10.1021/jo902311a] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A facile synthesis of xanthenes and acridines based on a cascade nucleophilic addition-cyclic Michael addition process of arynes and phenols/anilines substituted with alpha,beta-unsaturated groups at the ortho positions is described. The reaction has also been successfully extended to the synthesis of 9-spiro-xanthene and acridine derivatives with potential biochemical interest.
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Affiliation(s)
- Xian Huang
- Department of Chemistry, Zhejiang University (Xixi Campus), Hangzhou 310028, People's Republic of China.
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