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Natali M, Sartorel A, Ruggi A. Beyond Water Oxidation: Hybrid, Molecular-Based Photoanodes for the Production of Value-Added Organics. Front Chem 2022; 10:907510. [PMID: 35692692 PMCID: PMC9175021 DOI: 10.3389/fchem.2022.907510] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 04/19/2022] [Indexed: 11/23/2022] Open
Abstract
The political and environmental problems related to the massive use of fossil fuels prompted researchers to develop alternative strategies to obtain green and renewable fuels such as hydrogen. The light-driven water splitting process (i.e., the photochemical decomposition of water into hydrogen and oxygen) is one of the most investigated strategies to achieve this goal. However, the water oxidation reaction still constitutes a formidable challenge because of its kinetic and thermodynamic requirements. Recent research efforts have been focused on the exploration of alternative and more favorable oxidation processes, such as the oxidation of organic substrates, to obtain value-added products in addition to solar fuels. In this mini-review, some of the most intriguing and recent results are presented. In particular, attention is directed on hybrid photoanodes comprising molecular light-absorbing moieties (sensitizers) and catalysts grafted onto either mesoporous semiconductors or conductors. Such systems have been exploited so far for the photoelectrochemical oxidation of alcohols to aldehydes in the presence of suitable co-catalysts. Challenges and future perspectives are also briefly discussed, with special focus on the application of such hybrid molecular-based systems to more challenging reactions, such as the activation of C–H bonds.
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Affiliation(s)
- Mirco Natali
- Department of Chemical Pharmaceutical and Agricultural Sciences (DOCPAS), University of Ferrara, Ferrara, Italy
- *Correspondence: Mirco Natali, ; Andrea Sartorel, ; Albert Ruggi,
| | - Andrea Sartorel
- Dipartimento di Scienze Chimiche, Università di Padova, Padova, Italy
- *Correspondence: Mirco Natali, ; Andrea Sartorel, ; Albert Ruggi,
| | - Albert Ruggi
- Département de Chimie, Université de Fribourg, Fribourg, Switzerland
- *Correspondence: Mirco Natali, ; Andrea Sartorel, ; Albert Ruggi,
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2
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Affiliation(s)
- Chenchen Li
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 P. R. China
| | - Yong Na
- School of Chemistry and Chemical Engineering Harbin Institute of Technology Harbin 150001 P. R. China
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3
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Bhim A, Sasmal S, Gopalakrishnan J, Natarajan S. Visible-Light-Activated C-C Bond Cleavage and Aerobic Oxidation of Benzyl Alcohols Employing BiMXO 5 (M=Mg, Cd, Ni, Co, Pb, Ca and X=V, P). Chem Asian J 2020; 15:3104-3115. [PMID: 32790062 DOI: 10.1002/asia.202000814] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/07/2020] [Indexed: 11/10/2022]
Abstract
The synthesis, structure, optical and photocatalytic studies of a family of compounds with the general formula, BiMXO5 ; M=Mg, Cd, Ni, Co, Pb, Ca and X=V, P is presented. The compounds were prepared by regular solid-state reaction of constituents in the temperature range of 720-810 °C for 24 h. The compounds were characterized by powder X-ray diffraction (PXRD) methods. The Rietveld refinement of the PXRD patterns have been carried out to establish the structure. The optical absorption spectra along with the colors in daylight have been explained employing the allowed d-d transition. In addition, the observed colors of some of the V5+ containing compounds were explained using metal-to-metal charge transfer (MMCT) from the partially filled transition-metal 3d orbitals to the empty 3d orbitals of V5+ ions. The near IR (NIR) reflectivity studies indicate that many compounds exhibit good NIR reflectivity, suggesting that these compounds can be employed as 'cool pigments'. The experimentally determined band gaps of the prepared compounds were found to be suitable to exploit them for visible light activated photocatalysis. Photocatalytic C-C bond cleavage of alkenes and aerobic oxidation of alcohols were investigated employing visible light, which gave good yields and selectivity. The present study clearly demonstrated the versatility of the Paganoite family of compounds (BiMXO5 ) towards new colored inorganic materials, visible-light photocatalysts and 'cool pigments'.
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Affiliation(s)
- Anupam Bhim
- Framework Solids Laboratory, Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, 560012, India
| | - Shreya Sasmal
- Framework Solids Laboratory, Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, 560012, India
| | - Jagannatha Gopalakrishnan
- Framework Solids Laboratory, Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, 560012, India
| | - Srinivasan Natarajan
- Framework Solids Laboratory, Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore, 560012, India
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4
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Ahadi E, Hosseini-Monfared H, Spieß A, Janiak C. Photocatalytic asymmetric epoxidation of trans-stilbene with manganese–porphyrin/graphene-oxide nanocomposite and molecular oxygen: axial ligand effect. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00441c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
An efficient, visible light-driven manganese–porphyrin photocatalyst was developed for the asymmetric epoxidation of trans-stilbene by molecular oxygen under mild conditions.
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Affiliation(s)
- Elahe Ahadi
- Department of Chemistry
- University of Zanjan
- Zanjan
- Iran
| | | | - Alex Spieß
- Institut für Anorganische Chemie und Strukturchemie
- Heinrich-Heine-Universität Düsseldorf
- 40204 Düsseldorf
- Germany
| | - Christoph Janiak
- Institut für Anorganische Chemie und Strukturchemie
- Heinrich-Heine-Universität Düsseldorf
- 40204 Düsseldorf
- Germany
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5
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Fukuzumi S, Lee YM, Nam W. Photocatalytic Oxygenation Reactions Using Water and Dioxygen. CHEMSUSCHEM 2019; 12:3931-3940. [PMID: 31250964 DOI: 10.1002/cssc.201901276] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 06/25/2019] [Indexed: 06/09/2023]
Abstract
Water (H2 O) is the most environmentally benign reductant and is oxidized to evolve dioxygen (O2 )-the greenest oxidant-in photosystem II. This Minireview focuses on photocatalytic oxygenation of substrates with H2 O as an oxygen source and O2 as an oxidant. Metal complexes can be oxidized by two molecules of one-electron oxidants with H2 O to produce high-valent metal-oxo complexes, which act as active oxidants for oxygenating organic substrates. When an appropriate oxidant is employed for the substrate oxidation, the reduced oxidant can be oxidized by dioxygen to regenerate the oxidant when water and dioxygen are used as an oxygen source and an oxidant, respectively. Photoinduced electron transfer from a substrate (S) to the excited state of complex [(L)MIII ]+ produces a substrate radical cation (S.+ ), accompanied by the regeneration of [(L)MII ]. S.+ then reacts with H2 O to produce an OH adduct radical that is oxidized by [(L)MIII ]+ to yield an oxygenated product (SO), in which the oxygen atom originates from H2 O, accompanied by regeneration of [(L)MII ]. Photocatalytic oxidation of H2 O by O2 to produce H2 O2 is combined with the catalytic oxygenation of substrates with H2 O2 to produce the oxygenated products, in which the oxygen atom originates from O2 at the beginning but later from water. This Minireview provides a promising strategy for oxygenation of substrates by using H2 O as an oxygen source and O2 as the greenest oxidant.
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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 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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6
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Chen X, Deng K, Zhou P, Zhang Z. Metal- and Additive-Free Oxidation of Sulfides into Sulfoxides by Fullerene-Modified Carbon Nitride with Visible-Light Illumination. CHEMSUSCHEM 2018; 11:2444-2452. [PMID: 29797801 DOI: 10.1002/cssc.201800450] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Indexed: 06/08/2023]
Abstract
Photocatalytic selective oxidation has attracted considerable attention as an environmentally friendly strategy for organic transformations. Some methods have been reported for the photocatalytic oxidation of sulfides into sulfoxides in recent years. However, the practical application of these processes is undermined by several challenges, such as low selectivity, sluggish reaction rates, the requirement of UV-light irradiation, the use of additives, and the instability of the photocatalyst. Herein, a metal-free C60 /graphitic carbon nitride (g-C3 N4 ) composite photocatalyst was fabricated by a facile method, and well characterized by TEM, SEM, FTIR spectroscopy, XRD, X-ray photoelectron spectroscopy, diffuse reflectance spectroscopy, and photoluminescence spectroscopy. The C60 /g-C3 N4 catalyst exhibited a high photocatalytic activity at room temperature for the selective oxidation of sulfides into the corresponding sulfoxides in the presence of other functional groups, due to the synergetic roles of C60 and g-C3 N4 . Several important parameters have been screened, and this method afforded good to excellent yields of sulfoxides under optimal conditions. The superoxide radical (. O2- ) and singlet oxygen (1 O2 ) were identified as the oxidative species for the oxidation of sulfides into sulfoxides by exploring EPR experiments, and hence, a plausible mechanism for this oxidation was proposed. Moreover, the C60 /g-C3 N4 catalyst can be easily recovered by filtration and then reused at least four times without loss in activity.
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Affiliation(s)
- Xi Chen
- Key Laboratory of Catalysis and Materials Sciences of the, Ministry of Education, South-Central University for Nationalities, Wuhan, 430074, PR China
| | - Kejian Deng
- Key Laboratory of Catalysis and Materials Sciences of the, Ministry of Education, South-Central University for Nationalities, Wuhan, 430074, PR China
| | - Peng Zhou
- Key Laboratory of Catalysis and Materials Sciences of the, Ministry of Education, South-Central University for Nationalities, Wuhan, 430074, PR China
| | - Zehui Zhang
- Key Laboratory of Catalysis and Materials Sciences of the, Ministry of Education, South-Central University for Nationalities, Wuhan, 430074, PR China
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7
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Unsworth CA, Coulson B, Chechik V, Douthwaite RE. Aerobic oxidation of benzyl alcohols to benzaldehydes using monoclinic bismuth vanadate nanoparticles under visible light irradiation: Photocatalysis selectivity and inhibition. J Catal 2017. [DOI: 10.1016/j.jcat.2017.08.023] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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8
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Rosser TE, Reisner E. Understanding Immobilized Molecular Catalysts for Fuel-Forming Reactions through UV/Vis Spectroelectrochemistry. ACS Catal 2017. [DOI: 10.1021/acscatal.7b00326] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Timothy E. Rosser
- Christian Doppler Laboratory
for Sustainable SynGas Chemistry, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Erwin Reisner
- Christian Doppler Laboratory
for Sustainable SynGas Chemistry, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
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9
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Ashour RM, Abdelhamid HN, Abdel-Magied AF, Abdel-Khalek AA, Ali MM, Uheida A, Muhammed M, Zou X, Dutta J. Rare Earth Ions Adsorption onto Graphene Oxide Nanosheets. SOLVENT EXTRACTION AND ION EXCHANGE 2017. [DOI: 10.1080/07366299.2017.1287509] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Radwa M. Ashour
- Functional Materials, Department of Applied Physics, School of Engineering Sciences, KTH Royal Institute of Technology, Stockholm, Sweden
- Nuclear Materials Authority, El Maadi, Cairo, Egypt
| | - Hani Nasser Abdelhamid
- Berzelii Centre EXSELENT on Porous Materials and Inorganic and Structural Chemistry, Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden
| | | | | | - M. M. Ali
- Nuclear Materials Authority, El Maadi, Cairo, Egypt
| | - A. Uheida
- Functional Materials, Department of Applied Physics, School of Engineering Sciences, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Mamoun Muhammed
- Functional Materials, Department of Applied Physics, School of Engineering Sciences, KTH Royal Institute of Technology, Stockholm, Sweden
- Institute of Graduate Studies and Research, Alexandria University, Alexandria, Egypt
| | - Xiaodong Zou
- Berzelii Centre EXSELENT on Porous Materials and Inorganic and Structural Chemistry, Department of Materials and Environmental Chemistry, Stockholm University, Stockholm, Sweden
| | - Joydeep Dutta
- Functional Materials, Department of Applied Physics, School of Engineering Sciences, KTH Royal Institute of Technology, Stockholm, Sweden
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10
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High-valent metal-oxo complexes generated in catalytic oxidation reactions using water as an oxygen source. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2016.09.018] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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11
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Xu Y, Fu ZC, Cao S, Chen Y, Fu WF. Highly selective oxidation of sulfides on a CdS/C3N4 catalyst with dioxygen under visible-light irradiation. Catal Sci Technol 2017. [DOI: 10.1039/c6cy01568a] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A CdS/C3N4 visible-light catalyst exhibits high product selectivity towards photocatalytic oxidation of sulfides into corresponding sulfoxides with dioxygen in methanol.
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Affiliation(s)
- Yong Xu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and HKU-CAS Joint Laboratory on New Materials
- Technical Institute of Physics and Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Beijing 100190
| | - Zi-Cheng Fu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and HKU-CAS Joint Laboratory on New Materials
- Technical Institute of Physics and Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Beijing 100190
| | - Shuang Cao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and HKU-CAS Joint Laboratory on New Materials
- Technical Institute of Physics and Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Beijing 100190
| | - Yong Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and HKU-CAS Joint Laboratory on New Materials
- Technical Institute of Physics and Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Beijing 100190
| | - Wen-Fu Fu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials and HKU-CAS Joint Laboratory on New Materials
- Technical Institute of Physics and Chemistry
- University of Chinese Academy of Sciences
- Chinese Academy of Sciences
- Beijing 100190
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12
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Guan Y, Wang S, Liu Y, Lu L, Huang Y, Wang Y, Wang X. Constructing BiO1.1Br0.8 sheet-sphere junction structure for efficient photocatalytic degradation of aniline. CATAL COMMUN 2017. [DOI: 10.1016/j.catcom.2016.06.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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13
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Kasap H, Caputo C, Martindale BCM, Godin R, Lau VWH, Lotsch BV, Durrant JR, Reisner E. Solar-Driven Reduction of Aqueous Protons Coupled to Selective Alcohol Oxidation with a Carbon Nitride-Molecular Ni Catalyst System. J Am Chem Soc 2016; 138:9183-92. [PMID: 27337491 PMCID: PMC4965840 DOI: 10.1021/jacs.6b04325] [Citation(s) in RCA: 227] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Indexed: 12/23/2022]
Abstract
Solar water-splitting represents an important strategy toward production of the storable and renewable fuel hydrogen. The water oxidation half-reaction typically proceeds with poor efficiency and produces the unprofitable and often damaging product, O2. Herein, we demonstrate an alternative approach and couple solar H2 generation with value-added organic substrate oxidation. Solar irradiation of a cyanamide surface-functionalized melon-type carbon nitride ((NCN)CNx) and a molecular nickel(II) bis(diphosphine) H2-evolution catalyst (NiP) enabled the production of H2 with concomitant selective oxidation of benzylic alcohols to aldehydes in high yield under purely aqueous conditions, at room temperature and ambient pressure. This one-pot system maintained its activity over 24 h, generating products in 1:1 stoichiometry, separated in the gas and solution phases. The (NCN)CNx-NiP system showed an activity of 763 μmol (g CNx)(-1) h(-1) toward H2 and aldehyde production, a Ni-based turnover frequency of 76 h(-1), and an external quantum efficiency of 15% (λ = 360 ± 10 nm). This precious metal-free and nontoxic photocatalytic system displays better performance than an analogous system containing platinum instead of NiP. Transient absorption spectroscopy revealed that the photoactivity of (NCN)CNx is due to efficient substrate oxidation of the material, which outweighs possible charge recombination compared to the nonfunctionalized melon-type carbon nitride. Photoexcited (NCN)CNx in the presence of an organic substrate can accumulate ultralong-lived "trapped electrons", which allow for fuel generation in the dark. The artificial photosynthetic system thereby catalyzes a closed redox cycle showing 100% atom economy and generates two value-added products, a solar chemical, and solar fuel.
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Affiliation(s)
- Hatice Kasap
- Christian
Doppler Laboratory for Sustainable SynGas Chemistry, Department of
Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.
| | - Christine
A. Caputo
- Christian
Doppler Laboratory for Sustainable SynGas Chemistry, Department of
Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.
| | - Benjamin C. M. Martindale
- Christian
Doppler Laboratory for Sustainable SynGas Chemistry, Department of
Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.
| | - Robert Godin
- Department
of Chemistry, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
| | - Vincent Wing-hei Lau
- Max
Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany
- Department
of Chemistry, Ludwig-Maximilians-Universität
München, Butenandtstrasse
5-13 (Haus D), 81377 München, Germany
| | - Bettina V. Lotsch
- Max
Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany
- Department
of Chemistry, Ludwig-Maximilians-Universität
München, Butenandtstrasse
5-13 (Haus D), 81377 München, Germany
| | - James R. Durrant
- Department
of Chemistry, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
| | - Erwin Reisner
- Christian
Doppler Laboratory for Sustainable SynGas Chemistry, Department of
Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K.
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14
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Arora K, White JK, Sharma R, Mazumder S, Martin PD, Schlegel HB, Turro C, Kodanko JJ. Effects of Methyl Substitution in Ruthenium Tris(2-pyridylmethyl)amine Photocaging Groups for Nitriles. Inorg Chem 2016; 55:6968-79. [PMID: 27355786 PMCID: PMC4966558 DOI: 10.1021/acs.inorgchem.6b00650] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Four complexes of the general formula [Ru(L)(CH3CN)2](PF6)2, [L = TPA (5), MeTPA (6), Me2TPA (7), and Me3TPA (8)] [TPA = tris[(pyridin-2-yl)methyl]amine, where methyl groups were introduced consecutively onto the 6-position of py donors of TPA, were prepared and characterized by various spectroscopic techniques and mass spectrometry. While 5 and 8 were isolated as single stereoisomers, 6 and 7 were isolated as mixtures of stereoisomers in 2:1 and 1.5:1 ratios, respectively. Steric effects on ground state stability and thermal and photochemical reactivities were studied for all four complexes using (1)H NMR and electronic absorption spectroscopies and computational studies. These studies confirmed that the addition of steric bulk accelerates photochemical and thermal nitrile release.
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Affiliation(s)
- Karan Arora
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - Jessica K. White
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Rajgopal Sharma
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - Shivnath Mazumder
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - Philip D. Martin
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - H. Bernhard Schlegel
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - Claudia Turro
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Jeremy J. Kodanko
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
- Barbara Ann Karmanos Cancer Institute, Detroit, Michigan 48201, United States
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15
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Bai L, Li F, Wang Y, Li H, Jiang X, Sun L. Visible-light-driven selective oxidation of benzyl alcohol and thioanisole by molecular ruthenium catalyst modified hematite. Chem Commun (Camb) 2016; 52:9711-4. [PMID: 27411498 DOI: 10.1039/c6cc04327e] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Molecular ruthenium catalysts were found to selectively catalyze the oxidation of thioanisole to sulfoxide with a yield up to 100% in the presence of visible light and sacrificial reagents when they were anchored onto hematite powder. The composite photocatalysts also showed about 5 times higher efficiencies in benzyl alcohol oxidation than the system composed of dispersed molecular catalysts and hematite particles in aqueous solution. A photoelectrochemical cell based on a molecular catalyst modified hematite photoanode was further fabricated, which exhibited high activity towards the oxidation of organic substrates.
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Affiliation(s)
- Lichen Bai
- State Key Laboratory of Fine Chemicals, DUT-KTH Joint Education and Research Center on Molecular Devices, Dalian University of Technology (DUT), 116024 Dalian, China.
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16
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Chen G, Chen L, Ma L, Kwong HK, Lau TC. Photocatalytic oxidation of alkenes and alcohols in water by a manganese(v) nitrido complex. Chem Commun (Camb) 2016; 52:9271-4. [PMID: 27358025 DOI: 10.1039/c6cc04173f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mn(v) nitrido complex [Mn(N)(CN)4](2-) is an efficient catalyst for visible-light induced oxidation of alkenes and alcohols in water using [Ru(bpy)3](2+) as a photosensitizer and [Co(NH3)5Cl](2+) as a sacrificial oxidant. Alkenes are oxidized to epoxides and alcohols to carbonyl compounds.
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Affiliation(s)
- Gui Chen
- Department of Biology and Chemistry and Institute of Molecular Functional Materials, City University of Hong Kong, Tat Chee Avenue, Hong Kong, China.
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17
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Abstract
Cooperative photoredox catalysis bridges visible-light photoredox catalysis with other types of catalysis like transition-metal catalysis, biocatalysis or electrocatalysis for establishing demanding organic transformations.
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Affiliation(s)
- Xianjun Lang
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
- Singapore
| | - Jincai Zhao
- Key Laboratory of Photochemistry
- Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
| | - Xiaodong Chen
- School of Materials Science and Engineering
- Nanyang Technological University
- Singapore 639798
- Singapore
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18
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Wang Y, Li F, Li H, Bai L, Sun L. Photocatalytic water oxidation via combination of BiVO4–RGO and molecular cobalt catalysts. Chem Commun (Camb) 2016; 52:3050-3. [DOI: 10.1039/c5cc09588c] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Co4O4cubic complexes were found to be efficient cocatalysts for light-driven water oxidation in a system containing BiVO4–RGO and AgNO3.
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Affiliation(s)
- Yong Wang
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology (DUT)
- DUT-KTH Joint Education and Research Center on Molecular Devices
- Dalian 116024
- China
| | - Fei Li
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology (DUT)
- DUT-KTH Joint Education and Research Center on Molecular Devices
- Dalian 116024
- China
| | - Hua Li
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology (DUT)
- DUT-KTH Joint Education and Research Center on Molecular Devices
- Dalian 116024
- China
| | - Lichen Bai
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology (DUT)
- DUT-KTH Joint Education and Research Center on Molecular Devices
- Dalian 116024
- China
| | - Licheng Sun
- State Key Laboratory of Fine Chemicals
- Dalian University of Technology (DUT)
- DUT-KTH Joint Education and Research Center on Molecular Devices
- Dalian 116024
- China
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19
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Zhang B, Li J, Zhang B, Chong R, Li R, Yuan B, Lu SM, Li C. Selective oxidation of sulfides on Pt/BiVO 4 photocatalyst under visible light irradiation using water as the oxygen source and dioxygen as the electron acceptor. J Catal 2015. [DOI: 10.1016/j.jcat.2015.08.029] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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