1
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Li X, Ng BKY, Ho PL, Jia C, Shang J, Yoskamtorn T, Pan X, Li Y, Li G, Wu TS, Soo YL, He H, Yue B, Tsang SCE. Stabilization of Ni-containing Keggin-type polyoxometalates with variable oxidation states as novel catalysts for electrochemical water oxidation. Chem Sci 2024; 15:9201-9215. [PMID: 38903226 PMCID: PMC11186315 DOI: 10.1039/d4sc01087f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 05/11/2024] [Indexed: 06/22/2024] Open
Abstract
The development of new recyclable and inexpensive electrochemically active species for water oxidation catalysis is the most crucial step for future utilization of renewables. Particularly, transition metal complexes containing internal multiple, cooperative metal centers to couple with redox catalysts in the inorganic Keggin-type polyoxometalate (POM) framework at high potential or under extreme pH conditions would be promising candidates. However, most reported Ni-containing POMs have been highly unstable towards hydrolytic decomposition, which precludes them from application as water oxidation catalysts (WOCs). Here, we have prepared new tri-Ni-containing POMs with variable oxidation states by charge tailored synthetic strategies for the first time and developed them as recyclable POMs for water oxidation catalysts. In addition, by implanting corresponding POM anions into the positively charged MIL-101(Cr) metal-organic framework (MOF), the entrapped Ni2+/Ni3+ species can show complete recyclability for water oxidation catalysis without encountering uncontrolled hydrolysis of the POM framework. As a result, a low onset potential of approximately 1.46 V vs. NHE for water oxidation with stable WOC performance is recorded. Based on this study, rational design and stabilization of other POM-electrocatalysts containing different multiple transition metal centres could be made possible.
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Affiliation(s)
- Xiang Li
- Department of Chemistry, University of Oxford Oxford OX1 3QR UK
| | | | - Ping-Luen Ho
- Department of Chemistry, University of Oxford Oxford OX1 3QR UK
| | - Chunbo Jia
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University Shanghai 200438 China
| | - Jining Shang
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University Shanghai 200438 China
| | | | - Xuelei Pan
- Department of Chemistry, University of Oxford Oxford OX1 3QR UK
| | - Yiyang Li
- Department of Chemistry, University of Oxford Oxford OX1 3QR UK
| | - Guangchao Li
- Department of Chemistry, University of Oxford Oxford OX1 3QR UK
| | - Tai-Sing Wu
- National Synchrotron Radiation Research Center 101 Hsin-Ann Road Hsinchu 30076 Taiwan
| | - Yun-Liang Soo
- National Synchrotron Radiation Research Center 101 Hsin-Ann Road Hsinchu 30076 Taiwan
| | - Heyong He
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University Shanghai 200438 China
| | - Bin Yue
- Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Fudan University Shanghai 200438 China
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2
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Lionetti D, Suseno S, Shiau AA, de Ruiter G, Agapie T. Redox Processes Involving Oxygen: The Surprising Influence of Redox-Inactive Lewis Acids. JACS AU 2024; 4:344-368. [PMID: 38425928 PMCID: PMC10900226 DOI: 10.1021/jacsau.3c00675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/12/2023] [Accepted: 12/13/2023] [Indexed: 03/02/2024]
Abstract
Metalloenzymes with heteromultimetallic active sites perform chemical reactions that control several biogeochemical cycles. Transformations catalyzed by such enzymes include dioxygen generation and reduction, dinitrogen reduction, and carbon dioxide reduction-instrumental transformations for progress in the context of artificial photosynthesis and sustainable fertilizer production. While the roles of the respective metals are of interest in all these enzymatic transformations, they share a common factor in the transfer of one or multiple redox equivalents. In light of this feature, it is surprising to find that incorporation of redox-inactive metals into the active site of such an enzyme is critical to its function. To illustrate, the presence of a redox-inactive Ca2+ center is crucial in the Oxygen Evolving Complex, and yet particularly intriguing given that the transformation catalyzed by this cluster is a redox process involving four electrons. Therefore, the effects of redox inactive metals on redox processes-electron transfer, oxygen- and hydrogen-atom transfer, and O-O bond cleavage and formation reactions-mediated by transition metals have been studied extensively. Significant effects of redox inactive metals have been observed on these redox transformations; linear free energy correlations between Lewis acidity and the redox properties of synthetic model complexes are observed for several reactions. In this Perspective, these effects and their relevance to multielectron processes will be discussed.
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Affiliation(s)
| | - Sandy Suseno
- Division of Chemistry and
Chemical Engineering, California Institute
of Technology, 1200 East California Boulevard, MC 127-72, Pasadena, California 91125, United States
| | - Angela A. Shiau
- Division of Chemistry and
Chemical Engineering, California Institute
of Technology, 1200 East California Boulevard, MC 127-72, Pasadena, California 91125, United States
| | - Graham de Ruiter
- Division of Chemistry and
Chemical Engineering, California Institute
of Technology, 1200 East California Boulevard, MC 127-72, Pasadena, California 91125, United States
| | - Theodor Agapie
- Division of Chemistry and
Chemical Engineering, California Institute
of Technology, 1200 East California Boulevard, MC 127-72, Pasadena, California 91125, United States
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3
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Ikeda K, Yoshizawa K, Shiota Y. Theoretical Investigation into Selective Benzene Hydroxylation by Ruthenium-Substituted Keggin-Type Polyoxometalates. Inorg Chem 2021; 61:10-14. [PMID: 34890508 DOI: 10.1021/acs.inorgchem.1c02605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Benzene hydroxylation catalyzed by ruthenium-substituted Keggin-type polyoxometalates [RuV(O)XW11O39]n- (RuVOX; X = Al, Ga, Si, Ge, P, As, S; heteroatoms; 3 ≤ n ≤ 6) is investigated using the density functional theory approach. As a possible side reaction, the water oxidation reaction is also considered. We found that the rate-determining step for water oxidation by RuVOX requires a higher activation free energy than the benzene hydroxylation reaction, suggesting that all of the RuVOX catalysts show high chemoselectivity toward benzene hydroxylation. Additionally, the heteroatom effect in benzene hydroxylation by RuVOX is discussed. The replacement of Si by X induces changes in the bond length of μ4O-X, resulting in a change in the activation free energy for benzene hydroxylation by RuVOX. Consequentially, RuVOS is expected to be the most effective catalyst among the (RuVOX) catalysts for the benzene hydroxylation reaction.
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Affiliation(s)
- Kei Ikeda
- Institute for Materials Chemistry and Engineering and Integrated Research Consortium on Chemical Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering and Integrated Research Consortium on Chemical Science, Kyushu University, Fukuoka 819-0395, Japan
| | - Yoshihito Shiota
- Institute for Materials Chemistry and Engineering and Integrated Research Consortium on Chemical Science, Kyushu University, Fukuoka 819-0395, Japan
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4
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Li X, Cho K, Nam W. Electronic properties and reactivity patterns of
high‐valent metal‐oxo
species of Mn, Fe, Co, and Ni. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12389] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Xiao‐Xi Li
- Department of Chemistry and Nano Science Ewha Womans University Seoul Korea
| | - Kyung‐Bin Cho
- Department of Chemistry Jeonbuk National University Jeonju Korea
| | - Wonwoo Nam
- Department of Chemistry and Nano Science Ewha Womans University Seoul Korea
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5
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Liu B, Guo W, Wang H, Zheng S, Si Q, Zhao Q, Luo H, Ren N. Peroxymonosulfate activation by cobalt(II) for degradation of organic contaminants via high-valent cobalt-oxo and radical species. JOURNAL OF HAZARDOUS MATERIALS 2021; 416:125679. [PMID: 33823482 DOI: 10.1016/j.jhazmat.2021.125679] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/03/2021] [Accepted: 03/15/2021] [Indexed: 06/12/2023]
Abstract
The reaction between Co(II) and PMS is an appealing advanced oxidation process (AOP), where multiple reactive oxidizing species (ROS) including high-valent cobalt-oxo [Co(IV)], sulfate radical (SO4•-), and hydroxy radical (•OH) are intertwined together for degrading pollutants. However, the relative contribution of various ROS and the influences of nontarget matrix constituents, on the degradation process are still unclear and yet to be answered. In this study, we confirmed the generation Co(IV) as dominant intermediate oxidant at acid medium by using methyl phenyl sulfoxide (PMSO) as a probe compound. Using chemical scavenging methods, the role of SO4•- and •OH was also identified, and the major ROS were converted from Co(IV) to radical species with the increase of PMS/Co(II) molar ratio as well as pH value. In addition, we found that their contributions to the abatement of organic contaminants are highly dependent on both their available amount and substrate-specific reactivity. Generally, organic substrates with low ionization potential (IP) are prone to react with Co(IV). More interestingly, in contrast to radical-based oxidation, Co(IV) exhibited the great resistance to humic acid (HA) and background ions. This study might shed new light on the PMS activation by cobalt(II) for degradation of organic contaminants.
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Affiliation(s)
- Banghai Liu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
| | - Wanqian Guo
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China.
| | - Huazhe Wang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
| | - Shanshan Zheng
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
| | - Qishi Si
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
| | - Qi Zhao
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
| | - Haichao Luo
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
| | - Nanqi Ren
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
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6
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Liu B, Guo W, Jia W, Wang H, Zheng S, Si Q, Zhao Q, Luo H, Jiang J, Ren N. Insights into the oxidation of organic contaminants by Co(II) activated peracetic acid: The overlooked role of high-valent cobalt-oxo species. WATER RESEARCH 2021; 201:117313. [PMID: 34119969 DOI: 10.1016/j.watres.2021.117313] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 05/24/2021] [Accepted: 05/26/2021] [Indexed: 06/12/2023]
Abstract
The combination of Co(II) and peracetic acid (PAA) is a promising advanced oxidation process for the abatement of refractory organic contaminants, and acetylperoxy (CH3CO3•) and acetoxyl (CH3CO2•) radicals are generally recognized as the dominant and selective intermediate oxidants. However, the role of high-valent cobalt-oxo species [Co(IV)] have been overlooked. Herein, we confirmed that Co(II)/PAA reaction enables the generation of Co(IV) at acidic conditions based on multiple lines of evidences, including methyl phenyl sulfoxide (PMSO)-based probe experiments, 18O isotope-labeling technique, and in situ Raman spectroscopy. In-depth investigation reveals that the PAA oxidation mechanism is strongly pH dependent. The elevation of solution pH could induce major oxidants converting from Co(IV) to oxygen-centered radicals (i.e., CH3CO3• and CH3CO2•). The presence of H2O2 competitively consumes both Co(IV) and reactive radicals generated from Co(II)/PAA process, and thus, leading to an undesirably decline in catalytic performance. Additionally, as a highly reactive and selective oxidant, Co(IV) reacts readily with organic substances bearing electron-rich groups, and efficiently attenuating their biological toxicity. Our findings enrich the fundamental understanding of Co(II) and PAA reaction and will be useful for the application of Co(IV)-mediated processes.
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Affiliation(s)
- Banghai Liu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China.
| | - Wanqian Guo
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China.
| | - Wenrui Jia
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
| | - Huazhe Wang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
| | - Shanshan Zheng
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
| | - Qishi Si
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
| | - Qi Zhao
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
| | - Haichao Luo
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
| | - Jin Jiang
- Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou, China.
| | - Nanqi Ren
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, China
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7
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Special-selective C–H oxidation of toluene to benzaldehyde by a hybrid polyoxometalate photocatalyst including a rare [P6W48Fe6O180]30– anion. J Catal 2020. [DOI: 10.1016/j.jcat.2020.10.013] [Citation(s) in RCA: 21] [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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8
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Abstract
High-valent oxocobalt(IV) species have been invoked as key intermediates in oxidative catalysis, but investigations into the chemistry of proton-coupled redox reactions of such species have been limited. Herein, the reactivity of an established water oxidation catalyst, [Co4O4(OAc)4(py)4][PF6], toward H-atom abstraction reactions is described. Mechanistic analyses and density functional theory (DFT) calculations support a concerted proton-electron transfer (CPET) pathway in which the high energy intermediates formed in stepwise pathways are bypassed. Natural bond orbital (NBO) calculations point to cooperative donor-acceptor σ interactions at the transition state, whereby the H-atom of the substrate is transferred to an orbital delocalized over a Co3(μ3-O) fragment. The mechanistic insights provide design principles for the development of catalytic C-H activation processes mediated by a multimetallic oxo metal cluster.
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9
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Synthesis, Crystal Structure, Electrochemistry and Electro-Catalytic Properties of the Manganese-Containing Polyoxotungstate, [(Mn(H2O)3)2(H2W12O42)]6−. INORGANICS 2019. [DOI: 10.3390/inorganics7020015] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
We present the synthesis and structural characterization of the manganese-containing polyoxotungstate, [(Mn(H2O)3)2(H2W12O42)]6− (1), obtained by reaction of MnCl2 with six equivalents of Na2WO4 in the presence of Zn(CH3COO)2 in acetate medium (pH 4.7). This has been assessed by various techniques (FTIR, TGA, UV-Visible, XPS, elemental analysis, single crystal X-ray and electrochemistry). Single-crystal X-ray analyses showed that, in the solid state, 1 forms a 2-D network in which [H2W12O42]10− fragments are linked in pairs via Mn2+ ions, leading to linear chains of the form [(Mn(H2O)3)2(H2W12O42)]n6n−. The connection between chains occurs also via Mn2+ ions which bind [H2W12O42]10− fragments belonging to two adjacent chains, forming an infinite 2-D network. A complete electrochemical study was done in aqueous solution where 1 is stable in the pH range 1 to 6. This complex undergoes multiple electron-transfer processes that lead to the electro-generation of manganese high oxidation state species that catalyse water electro-oxidation. 1 is also effective in the electro-catalytic reduction of nitrite and dioxygen.
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10
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Folkman SJ, Soriano-Lopez J, Galán-Mascarós JR, Finke RG. Electrochemically Driven Water-Oxidation Catalysis Beginning with Six Exemplary Cobalt Polyoxometalates: Is It Molecular, Homogeneous Catalysis or Electrode-Bound, Heterogeneous CoOx Catalysis? J Am Chem Soc 2018; 140:12040-12055. [DOI: 10.1021/jacs.8b06303] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Scott J. Folkman
- Chemistry Department, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Joaquin Soriano-Lopez
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Av Països Catalans 16, E-43007 Tarragona, Spain
| | - José Ramón Galán-Mascarós
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology (BIST), Av Països Catalans 16, E-43007 Tarragona, Spain
| | - Richard G. Finke
- Chemistry Department, Colorado State University, Fort Collins, Colorado 80523, United States
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11
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Kumar J, Gorantla NVTSM, Roy S, Paesch AN, Herbst-Irmer R, Stalke D, Anusha C, De S, Parameswaran P, Roesky HW, Mondal KC. A Dicobalt Coordination Complex with a Short Cobalt-Cobalt Distance. ChemistrySelect 2018. [DOI: 10.1002/slct.201801172] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | | | - Sudipta Roy
- Dept. of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Tirupati; Karakambadi Road - 517507, Tirupati, Andhra Pradesh India
| | - Alexander Noel Paesch
- Institut für Anorganische Chemie; Georg-August-Universität, Tammannstraβe 4; 37077-Göttingen Germany
| | - Regine Herbst-Irmer
- Institut für Anorganische Chemie; Georg-August-Universität, Tammannstraβe 4; 37077-Göttingen Germany
| | - Dietmar Stalke
- Institut für Anorganische Chemie; Georg-August-Universität, Tammannstraβe 4; 37077-Göttingen Germany
| | | | - Susmita De
- National Institute of Technology Calicut; NIT Campus P.O.; Kozhikhode 673601
| | | | - Herbert W. Roesky
- Institut für Anorganische Chemie; Georg-August-Universität, Tammannstraβe 4; 37077-Göttingen Germany
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12
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Bugnola M, Schreiber RE, Kaufman Y, Leitus G, Shimon LJW, Neumann R. Reversible Temperature Dependent Dimerization of Transition Metal Substituted Quasi Wells-Dawson Polyfluoroxometalates. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800552] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Marco Bugnola
- Department of Organic Chemistry; Weizmann Institute of Science; 76100 Rehovot Israel
| | - Roy E. Schreiber
- Department of Organic Chemistry; Weizmann Institute of Science; 76100 Rehovot Israel
| | - Yehonatan Kaufman
- Department of Organic Chemistry; Weizmann Institute of Science; 76100 Rehovot Israel
| | - Gregory Leitus
- Department of Chemical Research Support; Weizmann Institute of Science; 76100 Rehovot Israel
| | - Linda J. W. Shimon
- Department of Chemical Research Support; Weizmann Institute of Science; 76100 Rehovot Israel
| | - Ronny Neumann
- Department of Organic Chemistry; Weizmann Institute of Science; 76100 Rehovot Israel
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13
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Cong B, Su Z, Zhao Z, Zhao W, Ma X, Zhou B. A new rhombic 2D interpenetrated organic-inorganic hybrid material base on [HxAs2Mo6O26](6−x)− polyoxoanion and Co-btb complexes. INORG CHEM COMMUN 2017. [DOI: 10.1016/j.inoche.2017.05.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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14
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Soriano-López J, Musaev DG, Hill CL, Galán-Mascarós JR, Carbó JJ, Poblet JM. Tetracobalt-polyoxometalate catalysts for water oxidation: Key mechanistic details. J Catal 2017. [DOI: 10.1016/j.jcat.2017.03.018] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Liu L, Wang B, Lv JH, Yu K, Wang L, Zhang H, Wang S, Zhou BB. One-step synthesis of two Wells–Dawson arsenotungstate hybrids via M–O–M bridges for efficient adsorption and selective separation of organic pollutants. CrystEngComm 2017. [DOI: 10.1039/c7ce01307h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two chain-like Dawson arsenotungstate hybrids with M–O–M and Cu–L linker have been hydrothermally synthesized, which have good electrocatalytic activity and selective adsorption properties for MB.
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Affiliation(s)
- Lu Liu
- Key Laboratory for Photonic and Electronic Bandgap Materials
- Ministry of Education
- Harbin Normal University
- Harbin 150025
- People's Republic of China
| | - Bo Wang
- Department of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150090
- China
| | - Jing Hua Lv
- Key Laboratory for Photonic and Electronic Bandgap Materials
- Ministry of Education
- Harbin Normal University
- Harbin 150025
- People's Republic of China
| | - Kai Yu
- Key Laboratory for Photonic and Electronic Bandgap Materials
- Ministry of Education
- Harbin Normal University
- Harbin 150025
- People's Republic of China
| | - Lu Wang
- Department of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150090
- China
| | - He Zhang
- Key Laboratory for Photonic and Electronic Bandgap Materials
- Ministry of Education
- Harbin Normal University
- Harbin 150025
- People's Republic of China
| | - Shuo Wang
- Key Laboratory for Photonic and Electronic Bandgap Materials
- Ministry of Education
- Harbin Normal University
- Harbin 150025
- People's Republic of China
| | - Bai Bin Zhou
- Key Laboratory for Photonic and Electronic Bandgap Materials
- Ministry of Education
- Harbin Normal University
- Harbin 150025
- People's Republic of China
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16
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Zhang Q, Bell-Taylor A, Bronston FM, Gorden JD, Goldsmith CR. Aldehyde Deformylation and Catalytic C–H Activation Resulting from a Shared Cobalt(II) Precursor. Inorg Chem 2016; 56:773-782. [DOI: 10.1021/acs.inorgchem.6b02127] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qiao Zhang
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Angela Bell-Taylor
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Fraser M. Bronston
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - John D. Gorden
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Christian R. Goldsmith
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
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17
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Duan Y, Clemente-Juan JM, Giménez-Saiz C, Coronado E. Cobalt Clusters with Cubane-Type Topologies Based on Trivacant Polyoxometalate Ligands. Inorg Chem 2016; 55:925-38. [DOI: 10.1021/acs.inorgchem.5b02532] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yan Duan
- Instituto de Ciencia Molecular
(ICMol), Parque Científico, Universidad de Valencia, Valencia, Spain
| | - Juan M. Clemente-Juan
- Instituto de Ciencia Molecular
(ICMol), Parque Científico, Universidad de Valencia, Valencia, Spain
| | - Carlos Giménez-Saiz
- Instituto de Ciencia Molecular
(ICMol), Parque Científico, Universidad de Valencia, Valencia, Spain
| | - Eugenio Coronado
- Instituto de Ciencia Molecular
(ICMol), Parque Científico, Universidad de Valencia, Valencia, Spain
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18
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Stauber JM, Bloch ED, Vogiatzis KD, Zheng SL, Hadt RG, Hayes D, Chen LX, Gagliardi L, Nocera DG, Cummins CC. Pushing Single-Oxygen-Atom-Bridged Bimetallic Systems to the Right: A Cryptand-Encapsulated Co–O–Co Unit. J Am Chem Soc 2015; 137:15354-7. [DOI: 10.1021/jacs.5b09827] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Julia M. Stauber
- Department
of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Eric D. Bloch
- Department
of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Department
of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Konstantinos D. Vogiatzis
- Department
of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Shao-Liang Zheng
- Department
of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Ryan G. Hadt
- Chemical
Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Dugan Hayes
- Chemical
Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Lin X. Chen
- Chemical
Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Laura Gagliardi
- Department
of Chemistry, Chemical Theory Center, and Supercomputing Institute, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Daniel G. Nocera
- Department
of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Christopher C. Cummins
- Department
of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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19
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Fukuzumi S, Ohkubo K, Lee YM, Nam W. Lewis Acid Coupled Electron Transfer of Metal-Oxygen Intermediates. Chemistry 2015; 21:17548-59. [PMID: 26404482 DOI: 10.1002/chem.201502693] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Redox-inactive metal ions and Brønsted acids that function as Lewis acids play pivotal roles in modulating the redox reactivity of metal-oxygen intermediates, such as metal-oxo and metal-peroxo complexes. The mechanisms of the oxidative CH bond cleavage of toluene derivatives, sulfoxidation of thioanisole derivatives, and epoxidation of styrene derivatives by mononuclear nonheme iron(IV)-oxo complexes in the presence of triflic acid (HOTf) and Sc(OTf)3 have been unified as rate-determining electron transfer coupled with binding of Lewis acids (HOTf and Sc(OTf)3 ) by iron(III)-oxo complexes. All logarithms of the observed second-order rate constants of Lewis acid-promoted oxidative CH bond cleavage, sulfoxidation, and epoxidation reactions of iron(IV)-oxo complexes exhibit remarkably unified correlations with the driving forces of proton-coupled electron transfer (PCET) and metal ion-coupled electron transfer (MCET) in light of the Marcus theory of electron transfer when the differences in the formation constants of precursor complexes were taken into account. The binding of HOTf and Sc(OTf)3 to the metal-oxo moiety has been confirmed for Mn(IV) -oxo complexes. The enhancement of the electron-transfer reactivity of metal-oxo complexes by binding of Lewis acids increases with increasing the Lewis acidity of redox-inactive metal ions. Metal ions can also bind to mononuclear nonheme iron(III)-peroxo complexes, resulting in acceleration of the electron-transfer reduction but deceleration of the electron-transfer oxidation. Such a control on the reactivity of metal-oxygen intermediates by binding of Lewis acids provides valuable insight into the role of Ca(2+) in the oxidation of water to dioxygen by the oxygen-evolving complex in photosystem II.
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Affiliation(s)
- Shunichi Fukuzumi
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750 (Korea). .,Department of Material and Life Science, Graduate School of Engineering, Osaka University, ALCA and SENTAN, Japan Science and Technology Agency (JST), Suita, Osaka, 565-0871 (Japan). .,Faculty of Science and Engineering, Meijo University, ALCA and SENTAN, Japan Science and Technology Agency (JST), Aichi, Nagoya, 468-0073 (Japan).
| | - Kei Ohkubo
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750 (Korea).,Department of Material and Life Science, Graduate School of Engineering, Osaka University, ALCA and SENTAN, Japan Science and Technology Agency (JST), Suita, Osaka, 565-0871 (Japan)
| | - Yong-Min Lee
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750 (Korea)
| | - Wonwoo Nam
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750 (Korea).
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20
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Schreiber RE, Cohen H, Leitus G, Wolf SG, Zhou A, Que L, Neumann R. Reactivity and O2 Formation by Mn(IV)- and Mn(V)-Hydroxo Species Stabilized within a Polyfluoroxometalate Framework. J Am Chem Soc 2015; 137:8738-48. [PMID: 26070034 PMCID: PMC4939246 DOI: 10.1021/jacs.5b03456] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Manganese(IV,V)-hydroxo and oxo complexes are often implicated in both catalytic oxygenation and water oxidation reactions. Much of the research in this area is designed to structurally and/or functionally mimic enzymes. On the other hand, the tendency of such mimics to decompose under strong oxidizing conditions makes the use of molecular inorganic oxide clusters an enticing alternative for practical applications. In this context it is important to understand the reactivity of conceivable reactive intermediates in such an oxide-based chemical environment. Herein, a polyfluoroxometalate (PFOM) monosubstituted with manganese, [NaH2(Mn-L)W17F6O55](q-), has allowed the isolation of a series of compounds, Mn(II, III, IV and V), within the PFOM framework. Magnetic susceptibility measurements show that all the compounds are high spin. XPS and XANES measurements confirmed the assigned oxidation states. EXAFS measurements indicate that Mn(II)PFOM and Mn(III)PFOM have terminal aqua ligands and Mn(V)PFOM has a terminal hydroxo ligand. The data are more ambiguous for Mn(IV)PFOM where both terminal aqua and hydroxo ligands can be rationalized, but the reactivity observed more likely supports a formulation of Mn(IV)PFOM as having a terminal hydroxo ligand. Reactivity studies in water showed unexpectedly that both Mn(IV)-OH-PFOM and Mn(V)-OH-PFOM are very poor oxygen-atom donors; however, both are highly reactive in electron transfer oxidations such as the oxidation of 3-mercaptopropionic acid to the corresponding disulfide. The Mn(IV)-OH-PFOM compound reacted in water to form O2, while Mn(V)-OH-PFOM was surprisingly indefinitely stable. It was observed that addition of alkali cations (K(+), Rb(+), and Cs(+)) led to the aggregation of Mn(IV)-OH-PFOM as analyzed by electron microscopy and DOSY NMR, while addition of Li(+) and Na(+) did not lead to aggregates. Aggregation leads to a lowering of the entropic barrier of the reaction without changing the free energy barrier. The observation that O2 formation is fastest in the presence of Cs(+) and ∼fourth order in Mn(IV)-OH-PFOM supports a notion of a tetramolecular Mn(IV)-hydroxo intermediate that is viable for O2 formation in an oxide-based chemical environment. A bimolecular reaction mechanism involving a Mn(IV)-hydroxo based intermediate appears to be slower for O2 formation.
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Affiliation(s)
- Roy E. Schreiber
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Hagai Cohen
- Department for Chemical Research Support, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Gregory Leitus
- Department for Chemical Research Support, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Sharon G. Wolf
- Department for Chemical Research Support, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Ang Zhou
- Department of Chemistry and Center for Metals in Biocatalysis, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Lawrence Que
- Department of Chemistry and Center for Metals in Biocatalysis, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Ronny Neumann
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
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21
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Siewert I, Gałęzowska J. Cobalt Catalyst with a Proton-Responsive Ligand for Water Oxidation. Chemistry 2014; 21:2780-4. [DOI: 10.1002/chem.201405020] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Indexed: 11/08/2022]
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22
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Hong S, Pfaff FF, Kwon E, Wang Y, Seo MS, Bill E, Ray K, Nam W. Spectroscopic capture and reactivity of a low-spin cobalt(IV)-oxo complex stabilized by binding redox-inactive metal ions. Angew Chem Int Ed Engl 2014; 53:10403-10407. [PMID: 25081948 PMCID: PMC4506312 DOI: 10.1002/anie.201405874] [Citation(s) in RCA: 130] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Indexed: 11/05/2022]
Abstract
High-valent cobalt-oxo intermediates are proposed as reactive intermediates in a number of cobalt-complex-mediated oxidation reactions. Herein we report the spectroscopic capture of low-spin (S=1/2) Co(IV)-oxo species in the presence of redox-inactive metal ions, such as Sc(3+), Ce(3+), Y(3+), and Zn(2+), and the investigation of their reactivity in C-H bond activation and sulfoxidation reactions. Theoretical calculations predict that the binding of Lewis acidic metal ions to the cobalt-oxo core increases the electrophilicity of the oxygen atom, resulting in the redox tautomerism of a highly unstable [(TAML)Co(III)(O˙)](2-) species to a more stable [(TAML)Co(IV)(O)(M(n+))] core. The present report supports the proposed role of the redox-inactive metal ions in facilitating the formation of high-valent metal-oxo cores as a necessary step for oxygen evolution in chemistry and biology.
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Affiliation(s)
- Seungwoo Hong
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750, Korea
| | - Florian Felix Pfaff
- Humboldt-Universität zu Berlin, Department of Chemistry, Brook Taylor Strasse 2, 12489 Berlin, Germany
| | - Eunji Kwon
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750, Korea
| | - Yong Wang
- State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Science, Dalian 116023, China
| | - Mi-Sook Seo
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750, Korea
| | - Eckhard Bill
- Max-Plank-Institut für chemische Energiekonversion, Mülheim an der Ruhr (Germany)
| | - Kallol Ray
- Humboldt-Universität zu Berlin, Department of Chemistry, Brook Taylor Strasse 2, 12489 Berlin, Germany
| | - Wonwoo Nam
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120-750, Korea
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23
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Hong S, Pfaff FF, Kwon E, Wang Y, Seo MS, Bill E, Ray K, Nam W. Spectroscopic Capture and Reactivity of a Low-Spin Cobalt(IV)-Oxo Complex Stabilized by Binding Redox-Inactive Metal Ions. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201405874] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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24
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Rubinstein A, Jiménez-Lozanao P, Carbó JJ, Poblet JM, Neumann R. Aerobic Carbon–Carbon Bond Cleavage of Alkenes to Aldehydes Catalyzed by First-Row Transition-Metal-Substituted Polyoxometalates in the Presence of Nitrogen Dioxide. J Am Chem Soc 2014; 136:10941-8. [DOI: 10.1021/ja502846h] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Amir Rubinstein
- Department
of Organic Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Pablo Jiménez-Lozanao
- Departament
de Química Física i Inorgànica, Universitat Rovira i Virgili, Tarragona 43007, Spain
| | - Jorge J. Carbó
- Departament
de Química Física i Inorgànica, Universitat Rovira i Virgili, Tarragona 43007, Spain
| | - Josep M. Poblet
- Departament
de Química Física i Inorgànica, Universitat Rovira i Virgili, Tarragona 43007, Spain
| | - Ronny Neumann
- Department
of Organic Chemistry, Weizmann Institute of Science, Rehovot 76100, Israel
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25
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Anyushin AV, Smolentsev AI, Mainichev DA, Vicent C, Gushchin AL, Sokolov MN, Fedin VP. Synthesis and characterization of a new Keggin anion: [BeW12O40]6−. Chem Commun (Camb) 2014; 50:9083-5. [DOI: 10.1039/c4cc02456g] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first berillododecatungstate [BeW12O40]6− has been synthesized and characterized by X-ray analysis, cyclic voltammetry, ESI-mass spectrometry, and 9Be and 183W NMR.
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Affiliation(s)
- Alexander V. Anyushin
- Nikolaev Institute of Inorganic Chemistry SB RAS
- Novosibirsk, Russia
- Novosibirsk State University
- Novosibirsk, Russia
| | - Anton I. Smolentsev
- Nikolaev Institute of Inorganic Chemistry SB RAS
- Novosibirsk, Russia
- Novosibirsk State University
- Novosibirsk, Russia
| | | | - Cristian Vicent
- Serveis Centrals d'Instrumentació Científica
- Universitat Jaume I
- E-12071 Castelló, Spain
| | - Artem L. Gushchin
- Nikolaev Institute of Inorganic Chemistry SB RAS
- Novosibirsk, Russia
- Novosibirsk State University
- Novosibirsk, Russia
| | - Maxim N. Sokolov
- Nikolaev Institute of Inorganic Chemistry SB RAS
- Novosibirsk, Russia
- Novosibirsk State University
- Novosibirsk, Russia
| | - Vladimir P. Fedin
- Nikolaev Institute of Inorganic Chemistry SB RAS
- Novosibirsk, Russia
- Novosibirsk State University
- Novosibirsk, Russia
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