1
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Yamaguchi M, Shioya K, Li C, Yonesato K, Murata K, Ishii K, Yamaguchi K, Suzuki K. Porphyrin-Polyoxotungstate Molecular Hybrid as a Highly Efficient, Durable, Visible-Light-Responsive Photocatalyst for Aerobic Oxidation Reactions. J Am Chem Soc 2024; 146:4549-4556. [PMID: 38285116 DOI: 10.1021/jacs.3c11394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
Organic-polyoxometalate (POM) hybrids have recently attracted considerable interest because of their distinctive properties and wide-ranging applications. For the construction of organic-POM hybrids, porphyrins are promising building units owing to their optical properties and reactivity, including strong visible-light absorption and subsequent singlet-oxygen (1O2*) generation. However, the practical utilization of porphyrins as photocatalysts and photosensitizers is often hindered by their own degradation by 1O2*. Therefore, there is a substantial demand for the development of porphyrin-derived photocatalysts with both high efficiency and durability. Herein, we present a porphyrin-polyoxotungstate molecular hybrid featuring a face-to-face stacked porphyrin dimer (I) fastened by four lacunary polyoxotungstates. Hybrid I exhibited remarkable efficiency and durability in photocatalytic aerobic oxidation reactions, and the selective oxidation of various dienes, alkenes, sulfides, and amines proceeded using just 0.003 mol % of the catalyst. Mechanistic investigations suggested that the high activity of I stems from the efficient generation of 1O2*, resulting from the heavy-atom effect of POMs. Furthermore, despite its high efficiency in 1O2* generation compared to free porphyrins, I exhibited superior durability against 1O2*-induced degradation under photoirradiation.
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Affiliation(s)
- Masahiro Yamaguchi
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kaito Shioya
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Chifeng Li
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kentaro Yonesato
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kei Murata
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
| | - Kazuyuki Ishii
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
| | - Kazuya Yamaguchi
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kosuke Suzuki
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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2
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Organic macrocycle-polyoxometalate hybrids. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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3
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Lamare R, Ruppert R, Boudon C, Ruhlmann L, Weiss J. Porphyrins and Polyoxometalate Scaffolds. Chemistry 2021; 27:16071-16081. [PMID: 34459527 DOI: 10.1002/chem.202102277] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Indexed: 11/09/2022]
Abstract
Polyoxometalates (POMs) can act as unique reservoirs for multiple electron transfers. As POMs display only weak absorption in the visible spectrum, they can be associated with chromophores such as porphyrins and porphyrin antennae. In this Minireview, the research dedicated to the combination of porphyrins and polyoxometalates is put in context and the state of the art identifying the challenges addressed in the optimization of hybrid materials for applications is detailed.
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Affiliation(s)
- Raphaël Lamare
- Institut de Chimie de Strasbourg, UMR 7177 CNRS-Université de Strasbourg, 4, rue Blaise Pascal, 67000, Strasbourg, France
| | - Romain Ruppert
- Institut de Chimie de Strasbourg, UMR 7177 CNRS-Université de Strasbourg, 4, rue Blaise Pascal, 67000, Strasbourg, France
| | - Corinne Boudon
- Institut de Chimie de Strasbourg, UMR 7177 CNRS-Université de Strasbourg, 4, rue Blaise Pascal, 67000, Strasbourg, France
| | - Laurent Ruhlmann
- Institut de Chimie de Strasbourg, UMR 7177 CNRS-Université de Strasbourg, 4, rue Blaise Pascal, 67000, Strasbourg, France
| | - Jean Weiss
- Institut de Chimie de Strasbourg, UMR 7177 CNRS-Université de Strasbourg, 4, rue Blaise Pascal, 67000, Strasbourg, France
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4
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Huo Z, Liang Y, Yang S, Zang D, Farha R, Goldmann M, Xu H, Antoine B, Matricardi E, Izzet G, Proust A, Ruhlmann L. Photocurrent generation from visible light irradiation of covalent polyoxometalate–porphyrin copolymers. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2020.137635] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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5
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Wang Z, Ai L, Wu Q. Preparation and photochromism performance of P 2W 16Mo 2/PVA/TiO 2 composite films. J COORD CHEM 2020. [DOI: 10.1080/00958972.2020.1821194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Zijing Wang
- School of Biomedical and Chemical Engineering, Liaoning Institute of Science and Technology, Benxi, P.R. China
| | - Limei Ai
- School of Biomedical and Chemical Engineering, Liaoning Institute of Science and Technology, Benxi, P.R. China
| | - Qingyin Wu
- Department of Chemistry, Zhejiang University, Hangzhou, P.R. China
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6
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Zhu Y, Huang Y, Li Q, Zang D, Gu J, Tang Y, Wei Y. Polyoxometalate-Based Photoactive Hybrid: Uncover the First Crystal Structure of Covalently Linked Hexavanadate-Porphyrin Molecule. Inorg Chem 2020; 59:2575-2583. [DOI: 10.1021/acs.inorgchem.9b03540] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Yingting Zhu
- Key Lab of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yichao Huang
- Key Lab of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Qi Li
- Key Lab of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Dejin Zang
- Key Lab of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Jing Gu
- Department of Chemistry and Biochemistry, San Diego State University, 5500 Campanile Drive, San Diego, California 92182-1030, United States
| | - Yajie Tang
- Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei Provincial Cooperative Innovation Center of Industrial Fermentation, Hubei Key Laboratory of Industrial Microbiology, Hubei University of Technology, Wuhan 430068, People’s Republic of China
| | - Yongge Wei
- Key Lab of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, China
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7
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Chen L, Chen WL, Wang XL, Li YG, Su ZM, Wang EB. Polyoxometalates in dye-sensitized solar cells. Chem Soc Rev 2019; 48:260-284. [PMID: 30451261 DOI: 10.1039/c8cs00559a] [Citation(s) in RCA: 158] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Dye-sensitized solar cells (DSSCs) are the third generation of photovoltaic cells developed by Grätzel and O'Regan. They have the characteristics of low cost, simple manufacturing process, tunable optical properties, and higher photoelectric conversion efficiency (PCE). With an ever increasing energy crisis, there is an urgent need to develop highly efficient, environmentally benign, and energy-saving cell materials. Polyoxometalates (POMs), a kind of molecular inorganic quasi-semiconductor, are promising candidates for use in different parts of DSSCs due to their excellent photosensitivity, redox, and catalytic properties, as well as their relative stability. Following a brief introduction to the development of DSSCs and the potential virtues of POMs in DSSCs, we attempt to make some generalizations about the energy level regulation of POMs that is the underlying theoretical basis for their application in DSSCs, and then we summarize the research progress of POMs in DSSCs in recent years. This is organized in terms of the properties of POMs, namely, electron acceptor, photosensitivity, redox and catalysis, based on the accumulation of our research into POMs over many years. Meanwhile, in view of the fact that the properties of POMs depend primarily on their electronic structural diversity, we keep this point in mind throughout the article with a view to revealing their structure-property relationships. Finally we provide a short summary and remarks on the future outlook. This review may be of interest to synthetic chemists devoted to designing POMs with specific structures, and researchers engaged in the extension of POMs to photoelectric materials.
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Affiliation(s)
- Li Chen
- Key Laboratory of Polyoxometalate Science of Ministry of Education, Department of Chemistry, Northeast Normal University, Changchun 130024, P. R. China.
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Zhang J, Huang Y, Li G, Wei Y. Recent advances in alkoxylation chemistry of polyoxometalates: From synthetic strategies, structural overviews to functional applications. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2017.10.025] [Citation(s) in RCA: 163] [Impact Index Per Article: 32.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Cameron JM, Wales DJ, Newton GN. Shining a light on the photo-sensitisation of organic-inorganic hybrid polyoxometalates. Dalton Trans 2018. [PMID: 29517788 DOI: 10.1039/c8dt00400e] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Finding new ways of using visible light (or, more specifically, solar irradiation) to drive commercially significant and/or challenging chemical processes is an ongoing research goal. Polyoxometalates (POMs) are discrete, metal-oxide clusters which are cheap, robust and easily synthesised but can also act as versatile molecular building blocks, allowing for astonishing variety in their structures and properties. In particular, the rich redox chemistry and inherent photo-activity of POMs makes them attractive for use in a variety of photochemical applications, however POMs characteristically only absorb strongly in the UV region. In this perspective, we discuss the various strategies which have been employed in order to sensitise POMs to visible light, with a particular focus on hybrid inorganic-organic POM species. We will discuss the two clear photo-activation mechanisms which have been developed to date and provide an outlook on some of the possible future directions of the field.
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Affiliation(s)
- Jamie M Cameron
- GSK Carbon Neutral Laboratory for Sustainable Chemistry, University of Nottingham, Nottingham, NG7 2GA, UK.
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10
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Ueda T. Electrochemistry of Polyoxometalates: From Fundamental Aspects to Applications. ChemElectroChem 2018. [DOI: 10.1002/celc.201701170] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tadaharu Ueda
- Department of Marine Resources Science, Faculty of Agriculture and Marine Science; Kochi University; Monobe-Otsu 200 Nankoku 783-8502 Japan
- Center for Advanced Marine Core Research; Kochi University; Monobe-Otsu 200 Nankoku 783-8502 Japan
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11
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Vanhaecht S, Quanten T, Parac-Vogt TN. A mild post-functionalization method for the vanadium substituted P2W15V3 Wells–Dawson polyoxometalate based on a copper catalyzed azide–alkyne cycloaddition. Dalton Trans 2017; 46:10215-10219. [DOI: 10.1039/c7dt02450a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A novel post-functionalization method for the vanadium substituted P2W15V3 Wells–Dawson polyoxometalate has been developed using a copper catalyzed azide–alkyne cycloaddition.
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Affiliation(s)
- S. Vanhaecht
- Department of Chemistry
- KU Leuven
- 3001 Leuven
- Belgium
| | - T. Quanten
- Department of Chemistry
- KU Leuven
- 3001 Leuven
- Belgium
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12
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Boulicault JE, Alves S, Cole RB. Negative Ion MALDI Mass Spectrometry of Polyoxometalates (POMs): Mechanism of Singly Charged Anion Formation and Chemical Properties Evaluation. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2016; 27:1301-1313. [PMID: 27142457 DOI: 10.1007/s13361-016-1400-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Revised: 03/29/2016] [Accepted: 03/30/2016] [Indexed: 06/05/2023]
Abstract
MALDI-MS has been developed for the negative ion mode analysis of polyoxometalates (POMs). Matrix optimization was performed using a variety of matrix compounds. A first group of matrixes offers MALDI mass spectra containing abundant intact singly charged anionic adduct ions, as well as abundant in-source fragmentations at elevated laser powers. A relative ranking of the ability to induce POM fragmentation is found to be: DAN > CHCA > CNA > DIT> HABA > DCTB > IAA. Matrixes of a second group provide poorer quality MALDI mass spectra without observable fragments. Sample preparation, including the testing of salt additives, was performed to optimize signals for a model POM, POMc12, the core structure of which bears four negative charges. The matrix 9-cyanoanthracene (CNA) provided the best signals corresponding to singly charged intact POMc12 anions. Decompositions of these intact anionic species were examined in detail, and it was concluded that hydrogen radical-induced mechanisms were not prevalent, but rather that the observed prompt fragments originate from transferred energy derived from initial electronic excitation of the CNA matrix. Moreover, in obtained MALDI mass spectra, clear evidence of electron transfer to analyte POM species was found: a manifestation of the POMs ability to readily capture electrons. The affinity of polyanionic POMc12 toward a variety of cations was evaluated and the following affinity ranking was established: Fe(3+) > Al(3+) > Li(+) > Ga(3+) > Co(2+) > Cr(3+) > Cu(2+) > [Mn(2+), Mg(2+)] > [Na(+), K(+)]. Thus, from the available cationic species, specific adducts are preferentially formed, and evidence is given that these higher affinity POM complexes are formed in the gas phase during the early stages of plume expansion. Graphical Abstract ᅟ.
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Affiliation(s)
- Jean E Boulicault
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Institut Parisien de Chimie Moléculaire (IPCM), 4 place Jussieu, 75252, Paris Cedex 05, France
| | - Sandra Alves
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Institut Parisien de Chimie Moléculaire (IPCM), 4 place Jussieu, 75252, Paris Cedex 05, France
| | - Richard B Cole
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Institut Parisien de Chimie Moléculaire (IPCM), 4 place Jussieu, 75252, Paris Cedex 05, France.
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13
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García M, Honores J, Quezada D, Díaz C, Dreyse P, Celis F, Kubiak CP, Canzi G, Guzmán F, Aguirre MJ, Isaacs M. Nitrite reduction on a multimetallic porphyrin/polyoxotungstate layer-by-layer modified electrodes. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.01.132] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Walsh JJ, Bond AM, Forster RJ, Keyes TE. Hybrid polyoxometalate materials for photo(electro-) chemical applications. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.06.016] [Citation(s) in RCA: 218] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Bai JP, Su F, Zhu HT, Sun H, Zhang LC, Liu MY, You WS, Zhu ZM. An open chain carboxyethyltin functionalized sandwich-type tungstophosphate based on a trivacant Dawson subunit: synthesis, characterization and properties. Dalton Trans 2015; 44:6423-30. [PMID: 25749136 DOI: 10.1039/c5dt00361j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A Dawson sandwich-type polyoxometalate {C(NH2)3}12H4[αββα-{(Sn(C3H4O2))2Mn2(P2W15O56)2}]·22H2O (abbreviated as SnR-Mn-P2W15), functionalized by open chain carboxyethyltin groups, was first prepared in aqueous solution under conventional reaction conditions, and then structurally characterized by physicochemical and spectroscopic methods. Single crystal X-ray diffraction analysis revealed that two Mn(2+) cations and two [Sn(CH2CH2COO)](2+) groups are located in the internal and external positions in the so-called equatorial region of SnR-Mn-P2W15, respectively. Intriguingly, two exposed carboxyl groups act as stretching-arm brackets, which provide a favorable structure for potential further functionalization. The electrocatalytic activity of SnR-Mn-P2W15 towards the reduction of hydrogen peroxide and nitrite was studied. Additionally, its acid catalysis and oxidation catalysis activities in organic synthesis were investigated.
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Affiliation(s)
- Jian-Ping Bai
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China.
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Huo Z, Zang D, Yang S, Farha R, Goldmann M, Hasenknopf B, Xu H, Ruhlmann L. Synthesis and characterization of Lindqvist-type polyoxometalate–porphyrin copolymers. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.03.178] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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17
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Gao LH, Zhang JF, Wang HL, Lin XY, Qi JM, Wang KZ. Effects of elemental composition variations of Keggin polyoxometalates on photocurrent generation of their layer-by-layer self-assembled films with a hemicyanine dye. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.03.062] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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Azcarate I, Huo Z, Farha R, Goldmann M, Xu H, Hasenknopf B, Lacôte E, Ruhlmann L. Generation of Photocurrent by Visible-Light Irradiation of Conjugated Dawson Polyoxophosphovanadotungstate-Porphyrin Copolymers. Chemistry 2015; 21:8271-80. [DOI: 10.1002/chem.201406178] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Indexed: 11/09/2022]
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Copolymeric films obtained by electropolymerization of porphyrins and dipyridyl-spacers including Dawson-type polyoxometalates. J Solid State Electrochem 2015. [DOI: 10.1007/s10008-015-2828-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Rahimi R, Shariatinia S, Zargari S, Yaghoubi Berijani M, Ghaffarinejad A, Shojaie ZS. Synthesis, characterization, and photocurrent generation of a new nanocomposite based Cu–TCPP MOF and ZnO nanorod. RSC Adv 2015. [DOI: 10.1039/c5ra02882e] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Schematic representation of the Cu–TCPP MOF/ZnO (15%) nanocomposite on an FTO substrate in the photoelectrochemical cell and the mechanism of the photocurrent generation (the chemical potentials were calculated by cyclic voltammetry measurement).
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Affiliation(s)
- Rahmatollah Rahimi
- Department of Chemistry
- Iran University of Science and Technology
- Tehran 16846-13114
- Iran
| | - Samaneh Shariatinia
- Department of Chemistry
- Iran University of Science and Technology
- Tehran 16846-13114
- Iran
| | - Solmaz Zargari
- Department of Chemistry
- Iran University of Science and Technology
- Tehran 16846-13114
- Iran
| | | | - Ali Ghaffarinejad
- Department of Chemistry
- Iran University of Science and Technology
- Tehran 16846-13114
- Iran
| | - Zahra Sadat Shojaie
- Department of Chemistry
- Iran University of Science and Technology
- Tehran 16846-13114
- Iran
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Covalent multi-component systems of polyoxometalates and metal complexes: Toward multi-functional organic–inorganic hybrids in molecular and material sciences. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.09.003] [Citation(s) in RCA: 140] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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22
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Yang W, Gao LH, Wang KZ. Photoelectric properties of polyoxometalate-based thin films – Recent advances and future perspective. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.05.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Santoni MP, Pal AK, Hanan GS, Tang MC, Furtos A, Hasenknopf B. A light-harvesting polyoxometalate-polypyridine hybrid induces electron transfer as its Re(I) complex. Dalton Trans 2014; 43:6990-3. [PMID: 24699840 DOI: 10.1039/c3dt53612b] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A derivative of the Dawson polyoxometalate [P2V3W15O62](9-) functionalized with one remote bipyridine coordination site (2) has been synthesized and combined with the neutral {Re(CO)3Br} moiety. The new Re(I)-hybrid (3) was characterized by various analytical techniques. Hybrid 3 exhibits several redox processes on a wide range of potentials with reductions centered on V(V), W(VI) and the organic ligand in order of decreasing potential. Both units, the polyoxometalate and the transition metal complex, retain their intrinsic properties in the hybrid 3, which displays photosensitization in the UV region with tailing into high-energy visible region.
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Affiliation(s)
- Marie-Pierre Santoni
- Département de Chimie, Université de Montréal, 2900 Edouard-Montpetit, Montréal, Québec H3T-1J4, Canada.
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