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Yang S, Yuan H, Guo K, Wei Z, Ming M, Yi J, Jiang L, Han Z. Fluorinated chlorin chromophores for red-light-driven CO 2 reduction. Nat Commun 2024; 15:5704. [PMID: 38977670 PMCID: PMC11231220 DOI: 10.1038/s41467-024-50084-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 06/27/2024] [Indexed: 07/10/2024] Open
Abstract
The utilization of low-energy photons in light-driven reactions is an effective strategy for improving the efficiency of solar energy conversion. In nature, photosynthetic organisms use chlorophylls to harvest the red portion of sunlight, which ultimately drives the reduction of CO2. However, a molecular system that mimics such function is extremely rare in non-noble-metal catalysis. Here we report a series of synthetic fluorinated chlorins as biomimetic chromophores for CO2 reduction, which catalytically produces CO under both 630 nm and 730 nm light irradiation, with turnover numbers of 1790 and 510, respectively. Under appropriate conditions, the system lasts over 240 h and stays active under 1% concentration of CO2. Mechanistic studies reveal that chlorin and chlorinphlorin are two key intermediates in red-light-driven CO2 reduction, while corresponding porphyrin and bacteriochlorin are much less active forms of chromophores.
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Affiliation(s)
- Shuang Yang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, Sun Yat-sen University, Guangzhou, China
| | - Huiqing Yuan
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, Sun Yat-sen University, Guangzhou, China
| | - Kai Guo
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, Sun Yat-sen University, Guangzhou, China
| | - Zuting Wei
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, Sun Yat-sen University, Guangzhou, China
| | - Mei Ming
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, Sun Yat-sen University, Guangzhou, China
- School of Materials Science and Engineering, Xihua University, Chengdu, China
| | - Jinzhi Yi
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, Sun Yat-sen University, Guangzhou, China
| | - Long Jiang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, Sun Yat-sen University, Guangzhou, China
| | - Zhiji Han
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, Sun Yat-sen University, Guangzhou, China.
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2
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Zhang J, She P, Xu Q, Tian F, Rao H, Qin JS, Bonin J, Robert M. Efficient Visible-Light-Driven Carbon Dioxide Reduction using a Bioinspired Nickel Molecular Catalyst. CHEMSUSCHEM 2024; 17:e202301892. [PMID: 38324459 DOI: 10.1002/cssc.202301892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 01/17/2024] [Accepted: 02/07/2024] [Indexed: 02/09/2024]
Abstract
Inspired by natural enzymes, this study presents a nickel-based molecular catalyst, [Ni‖(N2S2)]Cl2 (NiN2S2, N2S2=2,11-dithia[3,3](2,6)pyridinophane), for the photochemical catalytic reduction of CO2 under visible light. The catalyst was synthesized and characterized using various techniques, including liquid chromatography-high resolution mass spectrometry (LC-HRMS), UV-Visible spectroscopy, and X-ray crystallography. The crystallographic analysis revealed a slightly distorted octahedral coordination geometry with a mononuclear Ni2+ cation, two nitrogen atoms and two sulfur atoms. Photocatalytic CO2 reduction experiments were performed in homogeneous conditions using the catalyst in combination with [Ru(bpy)3]Cl2 (bpy=2,2'-bipyridine) as a photosensitizer and 1,3-dimethyl-2-phenyl-2,3-dihydro-1H-benzo[d]imidazole (BIH) as a sacrificial electron donor. The catalyst achieved a high selectivity of 89 % towards CO and a remarkable turnover number (TON) of 7991 during 8 h of visible light irradiation under CO2 in the presence of phenol as a co-substrate. The turnover frequency (TOF) in the initial 6 h was 1079 h-1, with an apparent quantum yield (AQY) of 1.08 %. Controlled experiments confirmed the dependency on the catalyst, light, and sacrificial electron donor for the CO2 reduction process. These findings demonstrate this bioinspired nickel molecular catalyst could be effective for fast and efficient photochemical catalytic reduction of CO2 to CO.
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Affiliation(s)
- Jing Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Ping She
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Qiang Xu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Fengkun Tian
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Heng Rao
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Jun-Sheng Qin
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Julien Bonin
- Université Paris Cité, CNRS, Laboratoire d'Electrochimie Moléculaire (LEM), F-75013, Paris, France
| | - Marc Robert
- Université Paris Cité, CNRS, Laboratoire d'Electrochimie Moléculaire (LEM), F-75013, Paris, France
- Institut Universitaire de France (IUF), F-75005, Paris, France
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Kamada K, Jung J, Yamada C, Wakabayashi T, Sekizawa K, Sato S, Morikawa T, Fukuzumi S, Saito S. Photocatalytic CO 2 Reduction Using an Osmium Complex as a Panchromatic Self-Photosensitized Catalyst: Utilization of Blue, Green, and Red Light. Angew Chem Int Ed Engl 2024; 63:e202403886. [PMID: 38545689 DOI: 10.1002/anie.202403886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Indexed: 04/24/2024]
Abstract
The photocatalytic reduction of carbon dioxide (CO2) represents an attractive approach for solar-energy storage and leads to the production of renewable fuels and valuable chemicals. Although some osmium (Os) photosensitizers absorb long wavelengths in the visible-light region, a self-photosensitized, mononuclear Os catalyst for red-light-driven CO2 reduction has not yet been exploited. Here, we discovered that the introduction of an Os metal to a PNNP-type tetradentate ligand resulted in the absorption of light with longer-wavelength (350-700 nm) and that can be applied to a panchromatic self-photosensitized catalyst for CO2 reduction to give mainly carbon monoxide (CO) with a total turnover number (TON) of 625 under photoirradiation (λ≥400 nm). CO2 photoreduction also proceeded under irradiation with blue (λ0=405 nm), green (λ0=525 nm), or red (λ0=630 nm) light to give CO with >90 % selectivity. The quantum efficiency using red light was determined to be 12 % for the generation of CO. A catalytic mechanism is proposed based on the detection of intermediates using various spectroscopic techniques, including transient absorption, electron paramagnetic resonance, and UV/Vis spectroscopy.
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Affiliation(s)
- Kenji Kamada
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, 464-8602, Nagoya, Japan
| | - Jieun Jung
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, 464-8602, Nagoya, Japan
| | - Chihiro Yamada
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, 464-8602, Nagoya, Japan
| | - Taku Wakabayashi
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, 464-8602, Nagoya, Japan
| | - Keita Sekizawa
- Toyota Central Research and Development Laboratories, Inc., 480-1192, Nagakute, Japan
| | - Shunsuke Sato
- Toyota Central Research and Development Laboratories, Inc., 480-1192, Nagakute, Japan
| | - Takeshi Morikawa
- Toyota Central Research and Development Laboratories, Inc., 480-1192, Nagakute, Japan
| | - Shunichi Fukuzumi
- Department of Chemistry, Faculty of Pure and Applied Science, University of Tsukuba, 1-1-1 Tennoudai, 305-8571, Tsukuba, Ibaraki, Japan
| | - Susumu Saito
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, 464-8602, Nagoya, Japan
- Integrated Research Consortium on Chemical Sciences (IRCCS), Nagoya University, Furo, Chikusa, 464-8602, Nagoya, Japan
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Tsipis AC, Sarantou AA. Photocatalytic conversion of CO 2 to CO by Ru(II) and Os(II) octahedral complexes: a DFT/TDDFT study. Dalton Trans 2024; 53:6791-6801. [PMID: 38535991 DOI: 10.1039/d4dt00125g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
The reaction mechanisms of the photocatalytic reduction of CO2 to CO catalyzed by [(en)M(CO)3Cl] complexes (M = Ru, Os, en = ethylenediamine) in the presence of triethanolamine (TEOA), R3N (R = -CH2CH2OH), in DCM and DMF solvents, were studied by means of DFT/TDDFT electronic structure calculations. The geometric and free energy reaction profiles for two possible reaction pathways were calculated. Both reaction pathways studied, start with the 17e-, catalytically active intermediate, [(en)M(CO)3]˙+ generated from the first triplet excited state, T1 upon reductive quenching by TEOA which acts as a sacrificial electron donor. In the first possible pathway, TEOA- anion binds to the metal center of the catalytically active intermediate, [(en)M(CO)3]˙+ followed by CO2 insertion into the M-OCH2CH2NR2 bond. The latter upon successive protonations releases a metal 'free' [R2NCH2CH2OC(O)(OH)] intermediate which starts a new and final catalytic cycle, leading to the formation of CO and H2O while regenarating TEOA. In the second possible pathway, the 17e-, catalytically active intermediate, [(en)M(CO)3]˙+ captures CO2 molecule, forming an η1-CO2 complex. Upon 2H+/2e- successive protonations and reductions, CO product is obtained along with regenarating the catalytically active intermediate [(en)M(CO)3]˙+. The nature of the proton donor affects the reaction profiles of both mechanisms. The nature of the solvent does not affect significantly the reaction mechanisms under study. Finally, since photoexcitation and T1 reductive quenching are common to both pathways, we have srutinized the photophysical properties of the [(en)M(CO)3Cl] complexes along with their T1 excited states reduction potentials, . The [(en)M(CO)3Cl] complexes absorb mainly in the UV region while the absolute are in the range 6.4-0.9 eV.
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Affiliation(s)
- Athanassios C Tsipis
- Laboratory of Inorganic Chemistry, Department of Chemistry, University of Ioannina, 45110, Greece.
| | - Antonia A Sarantou
- Laboratory of Inorganic Chemistry, Department of Chemistry, University of Ioannina, 45110, Greece.
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Lee D, Choe MS, Lee HJ, Shin JY, Kim CH, Son HJ, Kang SO. Accumulative Charge Separation in a Modular Quaterpyridine Bridging Ligand Platform and Multielectron Transfer Photocatalysis of π-Linked Dinuclear Ir(III)-Re(I) Complex for CO 2 Reduction. Inorg Chem 2023. [PMID: 37220663 DOI: 10.1021/acs.inorgchem.3c00496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Four sterically distorted quaterpyridyl (qpy) ligand-bridged Ir(III)-Re(I) heterometallic complexes (Ir-qpymm-Re, Ir-qpymp-Re, Ir-qpypm-Re, and Ir-qpypp-Re), in which the position of the coupling pyridine unit of the two 2,2'-bipyridine ligands was varied (meta (m)- or para (p)-position), pypyx-pyxpy (x = m and m, qpymm; x = m and p, qpymp; x = p and m, qpypm; x = p and p, qpypp), were prepared, along with the fully π-conjugated Ir(III)-[π linker]-Re(I) complexes (π linker = 2,2'-bipyrimidine (bpm), Ir-bpm-Re; π linker = 2,5-di(pyridin-2-yl)pyrazine (dpp), Ir-dpp-Re) to elucidate the electron mediating and accumulative charge separation properties of the bridging π-linker in a bimetallic system (photosensitizer-π linker-catalytic center). From the photophysical and electrochemical studies, it was found that the quaterpyridyl (qpy) bridging ligand (BL), in which the two planar Ir/Re metalated bipyridine (bpy) ligands were connected but slightly canted relative to each other, linking the heteroleptic Ir(III) photosensitizer, [(piqC^N)2IrIII(bpy)]+, and catalytic Re(I) complex, (bpy)ReI(CO)3Cl, minimized the energy lowering of the qpy BL, which hampers the forward photoinduced electron transfer (PET) process from [(piqC^N)2IrIII(N^N)]+ to (N^N)ReI(CO)3Cl (Ered1 = -(0.85-0.93) V and Ered2 = -(1.15-1.30) V vs SCE). This result contrasts with the fully π-delocalized bimetallic systems (Ir-bpm-Re and Ir-dpp-Re) that show a significant energy reduction due to the considerable π-extension and deshielding effect caused by the neighboring Lewis acidic metals (Ir and Re) on the electrochemical scale (Ered1 = -0.37 V and Ered2 = -1.02 and -0.99 V vs SCE). Based on a series of anion absorption studies and spectroelectrochemical (SEC) analyses, all Ir(III)-BL-Re(I) bimetallic complexes were found to exist as dianionic form (Ir(III)-[BL]2--Re(I)) after a fast reductive-quenching process in the presence of excess electron donor. In the photolysis experiment, the four Ir-qpy-Re complexes displayed the reasonable photochemical CO2-to-CO conversion activities (TON of 366-588 for 19 h) owing to the moderated electronic coupling between two functional Ir(III) and Re(I) centers through the slightly distorted qpy ligand, whereas Ir-bpm-Re and Ir-dpp-Re displayed negligible performances as a result of the strong electronic coupling via π-conjugation between the two functional components resulting in the energetic constraints for PET and an unwanted side reactions competing with the forward processes. These results confirm that the qpy unit can be utilized as an efficient BL platform in π-linked bimetallic systems.
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Affiliation(s)
- Daehan Lee
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Republic of Korea
| | - Min Su Choe
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Republic of Korea
| | - Hyung Joo Lee
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Republic of Korea
| | - Jae Yoon Shin
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Republic of Korea
| | - Chul Hoon Kim
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Republic of Korea
| | - Ho-Jin Son
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Republic of Korea
| | - Sang Ook Kang
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Republic of Korea
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Zhang X, Sukhanov AA, Liu X, Taddei M, Zhao J, Harriman A, Voronkova VK, Wan Y, Dick B, Di Donato M. Origin of intersystem crossing in highly distorted organic molecules: a case study with red light-absorbing N, N, O, O-boron-chelated Bodipys. Chem Sci 2023; 14:5014-5027. [PMID: 37206394 PMCID: PMC10189861 DOI: 10.1039/d3sc00854a] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 04/14/2023] [Indexed: 05/21/2023] Open
Abstract
To explore the relationship between the twisted π-conjugation framework of aromatic chromophores and the efficacy of intersystem crossing (ISC), we have studied a N,N,O,O-boron-chelated Bodipy derivative possessing a severely distorted molecular structure. Surprisingly, this chromophore is highly fluorescent, showing inefficient ISC (singlet oxygen quantum yield, ΦΔ = 12%). These features differ from those of helical aromatic hydrocarbons, where the twisted framework promotes ISC. We attribute the inefficient ISC to a large singlet-triplet energy gap (ΔES1/T1 = 0.61 eV). This postulate is tested by critical examination of a distorted Bodipy having an anthryl unit at the meso-position, for which ΦΔ is increased to 40%. The improved ISC yield is rationalized by the presence of a T2 state, localized on the anthryl unit, with energy close to that of the S1 state. The electron spin polarization phase pattern of the triplet state is (e, e, e, a, a, a), with the Tz sublevel of the T1 state overpopulated. The small zero-field splitting D parameter (-1470 MHz) indicates that the electron spin density is delocalized over the twisted framework. It is concluded that twisting of π-conjugation framework does not necessarily induce ISC, but S1/Tn energy matching may be a generic feature for increasing ISC for a new-generation of heavy atom-free triplet photosensitizers.
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Affiliation(s)
- Xue Zhang
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology Dalian 116024 P. R. China
| | - Andrey A Sukhanov
- Zavoisky Physical-Technical Institute, FRC Kazan Scientific Center of Russian Academy of Sciences Kazan 420029 Russia
| | - Xi Liu
- College of Chemistry, Beijing Normal University Beijing 100875 P. R. China
| | - Maria Taddei
- LENS (European Laboratory for Non-Linear Spectroscopy) Via N. Carrara 1 50019 Sesto Fiorentino (FI) Italy
| | - Jianzhang Zhao
- State Key Laboratory of Fine Chemicals, Frontiers Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology Dalian 116024 P. R. China
| | - Anthony Harriman
- Molecular Photonics Laboratory, School of Natural and Environmental Sciences, Newcastle University Newcastle Upon Tyne NE1 7RU UK
| | - Violeta K Voronkova
- Zavoisky Physical-Technical Institute, FRC Kazan Scientific Center of Russian Academy of Sciences Kazan 420029 Russia
| | - Yan Wan
- College of Chemistry, Beijing Normal University Beijing 100875 P. R. China
| | - Bernhard Dick
- Lehrstuhl für Physikalische Chemie, Institut für Physikalische und Theoretische Chemie, Universität Regensburg D-93053 Regensburg Germany
| | - Mariangela Di Donato
- LENS (European Laboratory for Non-Linear Spectroscopy) Via N. Carrara 1 50019 Sesto Fiorentino (FI) Italy
- ICCOM, Istituto di Chimica dei Complessi OrganoMetallici Via Madonna del Piano 10 50019 Sesto Fiorentino (FI) Italy
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Takahashi M, Asatani T, Morimoto T, Kamakura Y, Fujii K, Yashima M, Hosokawa N, Tamaki Y, Ishitani O. Supramolecular multi-electron redox photosensitisers comprising a ring-shaped Re(i) tetranuclear complex and a polyoxometalate. Chem Sci 2023; 14:691-704. [PMID: 36741525 PMCID: PMC9848162 DOI: 10.1039/d2sc04252e] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Accepted: 11/30/2022] [Indexed: 12/02/2022] Open
Abstract
Redox photosensitisers (PSs) play essential roles in various photocatalytic reactions. Herein, we synthesised new redox PSs of 1 : 1 supramolecules that comprise a ring-shaped Re(i) tetranuclear complex with 4+ charges and a Keggin-type heteropolyoxometalate with 4- charges. These PSs photochemically accumulate multi-electrons in one molecule (three or four electrons) in the presence of an electron donor and can supply electrons with different reduction potentials. PSs were successfully applied in the photocatalytic reduction of CO2 using catalysts (Ru(ii) and Re(i) complexes) and triethanolamine as a reductant. In photocatalytic reactions, these supramolecular PSs supply a different number of electrons to the catalyst depending on the redox potential of the intermediate, which is made from the one-electron-reduced species of the catalyst and CO2. Based on these data, information on the reduction potentials of the intermediates was obtained.
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Affiliation(s)
- Maria Takahashi
- Department of Chemistry, School of Science, Tokyo Institute of Technology O-okayama 2-12-1-NE-1 Meguro-ku Tokyo 152-8550 Japan
| | - Tsuyoshi Asatani
- Department of Chemistry, School of Science, Tokyo Institute of Technology O-okayama 2-12-1-NE-1 Meguro-ku Tokyo 152-8550 Japan
| | - Tatsuki Morimoto
- School of Engineering, Tokyo University of Technology 1404-1 Katakura Hachioji Tokyo 192-0982 Japan
| | - Yoshinobu Kamakura
- Department of Chemistry, School of Science, Tokyo Institute of Technology O-okayama 2-12-1-NE-1 Meguro-ku Tokyo 152-8550 Japan
| | - Kotaro Fujii
- Department of Chemistry, School of Science, Tokyo Institute of Technology O-okayama 2-12-1-NE-1 Meguro-ku Tokyo 152-8550 Japan
| | - Masatomo Yashima
- Department of Chemistry, School of Science, Tokyo Institute of Technology O-okayama 2-12-1-NE-1 Meguro-ku Tokyo 152-8550 Japan
| | - Naoki Hosokawa
- Department of Chemistry, School of Science, Tokyo Institute of Technology O-okayama 2-12-1-NE-1 Meguro-ku Tokyo 152-8550 Japan
| | - Yusuke Tamaki
- Department of Chemistry, School of Science, Tokyo Institute of Technology O-okayama 2-12-1-NE-1 Meguro-ku Tokyo 152-8550 Japan
| | - Osamu Ishitani
- Department of Chemistry, School of Science, Tokyo Institute of Technology O-okayama 2-12-1-NE-1 Meguro-ku Tokyo 152-8550 Japan
- Department of Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University 1-3-1 Kagamiyama Higashi-Hiroshima Hiroshima 739 8526 Japan
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Jiang J, Chen Y, Ji H. Zinc porphyrin and rhenium complex-based donor-acceptor conjugated porous polymer for visible-light-driven conversion of CO2 to CO. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.101972] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Kumagai H, Tamaki Y, Ishitani O. Photocatalytic Systems for CO 2 Reduction: Metal-Complex Photocatalysts and Their Hybrids with Photofunctional Solid Materials. Acc Chem Res 2022; 55:978-990. [PMID: 35255207 PMCID: PMC8988296 DOI: 10.1021/acs.accounts.1c00705] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
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Photocatalytic CO2 reduction is a critical objective
in the field of artificial photosynthesis because it can potentially
make a total solution for global warming and shortage of energy and
carbon resources. We have successfully developed various highly efficient,
stable, and selective photocatalytic systems for CO2 reduction
using transition metal complexes as both photosensitizers and catalysts.
The molecular architectures for constructing selective and efficient
photocatalytic systems for CO2 reduction are discussed
herein. As a typical example, a mixed system of a ring-shaped Re(I)
trinuclear complex as a photosensitizer and fac-[Re(bpy)(CO)3{OC2H4N(C2H4OH)2}] as a catalyst selectively photocatalyzed CO2 reduction to CO with the highest quantum yield of 82% and a turnover
number (TON) of over 600. Not only rare and noble metals but also
earth abundant ones, such as Mn(I), Cu(I), and Fe(II) can be used
as central metal cations. In the case using a Cu(I) dinuclear complex
as a photosensitizer and fac-Mn(bpy)(CO)3Br as a catalyst, the total formation quantum yield of CO and HCOOH
from CO2 was 57% and TONCO+HCOOH exceeded 1300. Efficient supramolecular photocatalysts for CO2 reduction,
in which photosensitizer and catalyst units are connected through
a bridging ligand, were developed for removing a diffusion control
on collisions between a photosensitizer and a catalyst. Supramolecular
photocatalysts, in which [Ru(N∧N)3]2+-type photosensitizer and Re(I) or Ru(II) catalyst units
are connected to each other with an alkyl chain, efficiently and selectively
photocatalyzed CO2 reduction in solutions. Mechanistic
studies using time-resolved IR and electrochemical measurements provided
molecular architecture for constructing efficient supramolecular photocatalysts.
A Ru(II)–Re(I) supramolecular photocatalyst constructed according
to this molecular architecture efficiently photocatalyzed CO2 reduction even when it was fixed on solid materials. Harnessing
this property of the supramolecular photocatalysts, two types of hybrid
photocatalytic systems were developed, namely, photocatalysts with
light-harvesting capabilities and photoelectrochemical systems for
CO2 reduction. Introduction of light-harvesting capabilities
into molecular photocatalytic
systems should be important because the intensity of solar light shone
on the earth’s surface is relatively low. Periodic mesoporous
organosilica, in which methyl acridone groups are embedded in the
silica framework as light harvesters, was combined with a Ru(II)–Re(I)
supramolecular photocatalyst with phosphonic acid anchoring groups.
In this hybrid, the photons absorbed by approximately 40 methyl acridone
groups were transferred to one Ru(II) photosensitizer unit, and then,
the photocatalytic CO2 reduction commenced. To use
water as an abundant electron donor, we developed hybrid
photocatalytic systems combining metal-complex photocatalysts with
semiconductor photocatalysts that display high photooxidation powers,
in which two photons are sequentially absorbed by the metal-complex
photosensitizer and the semiconductor, resulting in both high oxidation
and reduction power. Various types of dye-sensitized molecular photocathodes
comprising the p-type semiconductor electrodes and the supramolecular
photocatalysts were developed. Full photoelectrochemical cells combining
these dye-sensitized molecular photocathodes and n-type semiconductor
photoanodes achieved CO2 reduction using only visible light
as the energy source and water as the reductant. Drastic improvement
of dye-sensitized molecular photocathodes is reported. The results
presented in this Account clearly indicate that we
can construct very efficient, selective, and durable photocatalytic
systems constructed with the metal-complex photosensitizers and catalysts.
The supramolecular-photocatalyst architecture in which the photosensitizer
and the catalyst are connected to each other is useful especially
on the surface of solid owing to rapid electron transfer from the
photosensitizer to the catalyst. On basis of these findings, we successfully
constructed hybrid systems of the supramolecular photocatalysts with
photoactive solid materials. These hybridizations can add new functions
to the metal-complex photocatalytic systems, such as water oxidation
and light harvesting.
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Affiliation(s)
- Hiromu Kumagai
- Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai, Miyagi 980-8577, Japan
| | - Yusuke Tamaki
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1-NE-1, O-okayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Osamu Ishitani
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1-NE-1, O-okayama, Meguro-ku, Tokyo 152-8550, Japan
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10
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Spear A, Schuarca RL, Bond JQ, Korter TM, Zubieta J, Doyle RP. Photocatalytic turnover of CO 2 under visible light by [Re(CO) 3(1-(1,10) phenanthroline-5-(4-nitro-naphthalimide))Cl] in tandem with the sacrificial donor BIH. RSC Adv 2022; 12:5080-5084. [PMID: 35425589 PMCID: PMC8981247 DOI: 10.1039/d1ra08261b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 02/04/2022] [Indexed: 11/23/2022] Open
Abstract
Optimized photocatalytic conversion of CO2 requires new potent catalysts that can absorb visible light. The photocatalytic reduction of CO2 using rhenium(i) has been demonstrated but suffers from low turnover. Herein, we describe a [Re(CO)3(1-(1,10)phenanthroline-5-(4-nitro-naphthalimide))Cl] photocatalyst, which when combined with the sacrificial donor 1,3-dimethyl-2-phenyl-2,3-dihydro-1H-benzo[d]imidazole, results in selective production of formic acid and a high turnover number of 533 and turnover frequency of 356 h-1. Single-crystal X-ray diffraction and DFT studies are also discussed.
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Affiliation(s)
- Alyssa Spear
- Department of Chemistry, Syracuse University Syracuse NY 13244 USA
| | - Robson L Schuarca
- Department of Biomedical and Chemical Engineering, Syracuse University Syracuse NY 13244 USA
| | - Jesse Q Bond
- Department of Biomedical and Chemical Engineering, Syracuse University Syracuse NY 13244 USA
| | - Timothy M Korter
- Department of Chemistry, Syracuse University Syracuse NY 13244 USA
| | - Jon Zubieta
- Department of Chemistry, Syracuse University Syracuse NY 13244 USA
| | - Robert P Doyle
- Department of Chemistry, Syracuse University Syracuse NY 13244 USA
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11
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Nasrallah H, Lyu P, Maurin G, El-Roz M. Highly efficient CO2 reduction under visible-light on non-covalent Ru⋯Re assembled photocatalyst: Evidence on the electron transfer mechanism. J Catal 2021. [DOI: 10.1016/j.jcat.2021.09.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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12
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Pirzada BM, Dar AH, Shaikh MN, Qurashi A. Reticular-Chemistry-Inspired Supramolecule Design as a Tool to Achieve Efficient Photocatalysts for CO 2 Reduction. ACS OMEGA 2021; 6:29291-29324. [PMID: 34778605 PMCID: PMC8581999 DOI: 10.1021/acsomega.1c04018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 09/30/2021] [Indexed: 05/03/2023]
Abstract
Photocatalytic CO2 reduction into C1 products is one of the most trending research subjects of current times as sustainable energy generation is the utmost need of the hour. In this review, we have tried to comprehensively summarize the potential of supramolecule-based photocatalysts for CO2 reduction into C1 compounds. At the outset, we have thrown light on the inert nature of gaseous CO2 and the various challenges researchers are facing in its reduction. The evolution of photocatalysts used for CO2 reduction, from heterogeneous catalysis to supramolecule-based molecular catalysis, and subsequent semiconductor-supramolecule hybrid catalysis has been thoroughly discussed. Since CO2 is thermodynamically a very stable molecule, a huge reduction potential is required to undergo its one- or multielectron reduction. For this reason, various supramolecule photocatalysts were designed involving a photosensitizer unit and a catalyst unit connected by a linker. Later on, solid semiconductor support was also introduced in this supramolecule system to achieve enhanced durability, structural compactness, enhanced charge mobility, and extra overpotential for CO2 reduction. Reticular chemistry is seen to play a pivotal role as it allows bringing all of the positive features together from various components of this hybrid semiconductor-supramolecule photocatalyst system. Thus, here in this review, we have discussed the selection and role of various components, viz. the photosensitizer component, the catalyst component, the linker, the semiconductor support, the anchoring ligands, and the peripheral ligands for the design of highly performing CO2 reduction photocatalysts. The selection and role of various sacrificial electron donors have also been highlighted. This review is aimed to help researchers reach an understanding that may translate into the development of excellent CO2 reduction photocatalysts that are operational under visible light and possess superior activity, efficiency, and selectivity.
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Affiliation(s)
- Bilal Masood Pirzada
- Department
of Chemistry, Khalifa University of Science
and Technology (KU), Abu Dhabi 127788, United Arab Emiratus
- ,
| | - Arif Hassan Dar
- Institute
of NanoScience and Technology (INST), Mohali 160062, India
| | - M. Nasiruzzaman Shaikh
- Interdisciplinary
Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Ahsanulhaq Qurashi
- Department
of Chemistry, Khalifa University of Science
and Technology (KU), Abu Dhabi 127788, United Arab Emiratus
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13
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Irikura M, Tamaki Y, Ishitani O. Development of a panchromatic photosensitizer and its application to photocatalytic CO 2 reduction. Chem Sci 2021; 12:13888-13896. [PMID: 34760174 PMCID: PMC8549774 DOI: 10.1039/d1sc04045f] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 09/28/2021] [Indexed: 11/21/2022] Open
Abstract
We designed and synthesized a heteroleptic osmium(ii) complex with two different tridentate ligands, Os. Os can absorb the full wavelength range of visible light owing to S–T transitions, and this was supported by TD-DFT calculations. Excitation of Os using visible light of any wavelength generates the same lowest triplet metal-to-ligand charge-transfer excited state, the lifetime of which is relatively long (τem = 40 ns). Since excited Os could be reductively quenched by 1,3-dimethyl-2-(o-hydroxyphenyl)-2,3-dihydro-1H-benzo[d]imidazole, Os displays high potential as a panchromatic photosensitizer. Using a combination of Os and a ruthenium(ii) catalyst, CO2 was photocatalytically reduced to HCOOH via irradiation with 725 nm light, and the turnover number reached 81; irradiation with light at λex > 770 nm also photocatalytically induced HCOOH formation. These results clearly indicate that Os can function as a panchromatic redox photosensitizer. The osmium(ii) complex functioned as a panchromatic photosensitizer and drove CO2 reduction.![]()
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Affiliation(s)
- Mari Irikura
- Department of Chemistry, School of Science, Tokyo Institute of Technology O-okayama 2-12-1-NE-1, Meguro-ku Tokyo 152-8550 Japan
| | - Yusuke Tamaki
- Department of Chemistry, School of Science, Tokyo Institute of Technology O-okayama 2-12-1-NE-1, Meguro-ku Tokyo 152-8550 Japan
| | - Osamu Ishitani
- Department of Chemistry, School of Science, Tokyo Institute of Technology O-okayama 2-12-1-NE-1, Meguro-ku Tokyo 152-8550 Japan
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14
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Back C, Seo Y, Choi S, Choe MS, Lee D, Baeg JO, Son HJ, Kang SO. Secondary Coordination Effect on Monobipyridyl Ru(II) Catalysts in Photochemical CO 2 Reduction: Effective Proton Shuttle of Pendant Brønsted Acid/Base Sites (OH and N(CH 3) 2) and Its Mechanistic Investigation. Inorg Chem 2021; 60:14151-14164. [PMID: 34473480 DOI: 10.1021/acs.inorgchem.1c01559] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
While the incorporation of pendant Brønsted acid/base sites in the secondary coordination sphere is a promising and effective strategy to increase the catalytic performance and product selectivity in organometallic catalysis for CO2 reduction, the control of product selectivity still faces a great challenge. Herein, we report two new trans(Cl)-[Ru(6-X-bpy)(CO)2Cl2] complexes functionalized with a saturated ethylene-linked functional group (bpy = 2,2'-bipyridine; X = -(CH2)2-OH or -(CH2)2-N(CH3)2) at the ortho(6)-position of bpy ligand, which are named Ru-bpyOH and Ru-bpydiMeN, respectively. In the series of photolysis experiments, compared to nontethered case, the asymmetric attachment of tethering ligand to the bpy ligand led to less efficient but more selective formate production with inactivation of CO2-to-CO conversion route during photoreaction. From a series of in situ FTIR analyses, it was found that the Ru-formate intermediates are stabilized by a highly probable hydrogen bonding between pendent proton donors (-diMeN+H or -OH) and the oxygen atom of metal-bound formate (RuI-OCHO···H-E-(CH2)2-, E = O or diMeN+). Under such conformation, the liberation of formate from the stabilized RuI-formate becomes less efficient compared to the nontethered case, consequently lowering the CO2-to-formate conversion activities during photoreaction. At the same time, such stabilization of Ru-formate species prevents the dehydration reaction route (η1-OCHO → η1-COOH on Ru metal) which leads toward the generation of Ru-CO species (key intermediate for CO production), eventually leading to the reduction of CO2-to-CO conversion activity.
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Affiliation(s)
- Changhyun Back
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Korea
| | - Yunjeong Seo
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Korea
| | - Sunghan Choi
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Korea
| | - Min Su Choe
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Korea
| | - Daehan Lee
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Korea
| | - Jin-Ook Baeg
- Artificial Photosynthesis Research Group, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Korea
| | - Ho-Jin Son
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Korea
| | - Sang Ook Kang
- Department of Advanced Materials Chemistry, Korea University, Sejong 30019, Korea
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15
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Kamogawa K, Shimoda Y, Miyata K, Onda K, Yamazaki Y, Tamaki Y, Ishitani O. Mechanistic study of photocatalytic CO 2 reduction using a Ru(ii)-Re(i) supramolecular photocatalyst. Chem Sci 2021; 12:9682-9693. [PMID: 34349939 PMCID: PMC8294001 DOI: 10.1039/d1sc02213j] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 05/20/2021] [Indexed: 12/04/2022] Open
Abstract
Supramolecular photocatalysts comprising [Ru(diimine)3]2+ photosensitiser and fac-[Re(diimine)(CO)3{OC(O)OC2H4NR2}] catalyst units can be used to reduce CO2 to CO with high selectivity, durability and efficiency. In the presence of triethanolamine, the Re catalyst unit efficiently takes up CO2 to form a carbonate ester complex, and then direct photocatalytic reduction of a low concentration of CO2, e.g., 10% CO2, can be achieved using this type of supramolecular photocatalyst. In this work, the mechanism of the photocatalytic reduction of CO2 was investigated applying such a supramolecular photocatalyst, RuC2Re with a carbonate ester ligand, using time-resolved visible and infrared spectroscopies and electrochemical methods. Using time-resolved spectroscopic measurements, the kinetics of the photochemical formation processes of the one-electron-reduced species RuC2(Re)−, which is an essential intermediate in the photocatalytic reaction, were clarified in detail and its electronic structure was elucidated. These studies also showed that RuC2(Re)− is stable for 10 ms in the reaction solution. Cyclic voltammograms measured at various scan rates besides temperature and kinetic analyses of RuC2(Re)− produced by steady-state irradiation indicated that the subsequent reaction of RuC2(Re)− proceeds with an observed first-order rate constant of approximately 1.8 s−1 at 298 K and is a unimolecular reaction, independent of the concentrations of both CO2 and RuC2(Re)−. Formation processes and reactivity of an important intermediate of photocatalytic CO2 reduction, one-electron reduced species of a Ru(ii)–Re(i) supramolecular photocatalyst with a carbonate ester ligand, were investigated in detail.![]()
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Affiliation(s)
- Kei Kamogawa
- Department of Chemistry, Tokyo Institute of Technology O-okayama 2-12-1, NE1, Meguro-ku Tokyo 152-8550 Japan
| | - Yuushi Shimoda
- Department of Chemistry, Kyushu University Fukuoka 819-0395 Japan
| | - Kiyoshi Miyata
- Department of Chemistry, Kyushu University Fukuoka 819-0395 Japan
| | - Ken Onda
- Department of Chemistry, Kyushu University Fukuoka 819-0395 Japan
| | - Yasuomi Yamazaki
- Department of Chemistry, Tokyo Institute of Technology O-okayama 2-12-1, NE1, Meguro-ku Tokyo 152-8550 Japan
| | - Yusuke Tamaki
- Department of Chemistry, Tokyo Institute of Technology O-okayama 2-12-1, NE1, Meguro-ku Tokyo 152-8550 Japan
| | - Osamu Ishitani
- Department of Chemistry, Tokyo Institute of Technology O-okayama 2-12-1, NE1, Meguro-ku Tokyo 152-8550 Japan
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16
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Tang J, Dong W, Chen F, Deng L, Xian M. Rhodium catalysts with cofactor mimics for the biomimetic reduction of CN bonds. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00904d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Bio-inspired reduction of CN bonds was successfully performed using rhodium catalysts containing cofactor mimics. The intramolecular cooperation between rhodium and cofactor mimics enabled the transformation with good selectivity. A plausible mechanism was also proposed.
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Affiliation(s)
- Jie Tang
- CAS Key Laboratory of Bio-based Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao 266101
- P.R. China
| | - Wenjin Dong
- CAS Key Laboratory of Bio-based Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao 266101
- P.R. China
| | - Fushan Chen
- College of Chemical Engineering
- Qingdao University of Sciences & Technology
- Qingdao
- P.R. China
| | - Li Deng
- CAS Key Laboratory of Bio-based Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao 266101
- P.R. China
| | - Mo Xian
- CAS Key Laboratory of Bio-based Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao 266101
- P.R. China
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17
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Ishii K, Wada J, Murata K. Direct Observation of the S 0 → T 2 Transition in Phosphorescent Platinum(II) Octaethylporphyrin, Evidenced by Magnetic Circular Dichroism. J Phys Chem Lett 2020; 11:9828-9833. [PMID: 32966090 DOI: 10.1021/acs.jpclett.0c02469] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
In recent years, the importance of analyzing excited triplet states has increased dramatically because of their relevance in the design and development of photofunctional molecules. Since the second lowest excited triplet (T2) state plays an important role in enhancing the nonradiative intersystem crossing (ISC) process from the lowest excited singlet (S1) state to the lowest excited triplet (T1) state, it is strongly desired to develop direct observation methods for the nonluminescent, short-lived T2 state. In this study, the excited triplet states of platinum(II) octaethylporphyrin (PtOEP), which was used as the first phosphorescent organic light emitting diode and oxygen sensor, are investigated using UV-vis absorption, magnetic circular dichroism, and phosphorescence spectroscopies. At low temperature, in highly concentrated solutions, we observe a distinct Faraday A term for the S0 → T1 transition, as well as for the S0 → T2 transition. The novel spectroscopic methodology applied allows resolution of the excited-state properties of a wide variety of molecular systems.
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Affiliation(s)
- Kazuyuki Ishii
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
| | - Junya Wada
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
| | - Kei Murata
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
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18
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Ozawa K, Tamaki Y, Kamogawa K, Koike K, Ishitani O. Factors determining formation efficiencies of one-electron-reduced species of redox photosensitizers. J Chem Phys 2020; 153:154302. [PMID: 33092369 DOI: 10.1063/5.0023593] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Improvement in the photochemical formation efficiency of one-electron-reduced species (OERS) of a photoredox photosensitizer (a redox catalyst) is directly linked to the improvement in efficiencies of the various photocatalytic reactions themselves. We investigated the primary processes of a photochemical reduction of two series [Ru(diimine)3]2+ and [Os(diimine)3]2+ as frequently used redox photosensitizers (PS2+), by 1,3-dimethyl-2-phenyl-2,3-dihydro-1H-benzo[d]imidazole (BIH) as a typical reductant in detail using steady-irradiation and time-resolved spectroscopies. The rate constants of all elementary processes of the photochemical reduction of PS2+ by BIH to give the free PS•+ were obtained or estimated. The most important process for determining the formation efficiency of the free PS•+ was the escape yield from the solvated ion pair [PS•+-BIH•+], which was strongly dependent on both the central metal ion and the ligands. In cases with the same central metal ion, the system with larger -ΔGbet, which is the free energy change in the back-electron transfer from the OERS of PS•+ to BIH•+, tended to lower the escape yield of the free OERS of PS2+. On the other hand, different central metal ions drastically affected the escape yield even in cases with similar -ΔGbet; the escape yield in the case of RuH2+ (-ΔGbet = 1.68 eV) was 5-11 times higher compared to those of OsH2+ (-ΔGbet = 1.60 eV) and OsMe2+ (-ΔGbet = 1.71 eV). The back-electron transfer process from the free PS•+ to the free BIH•+ could not compete against the further reaction of the free BIH•+, which is the deprotonation process giving BI•, in DMA for all examples. The produced BI• gave one electron to PS2+ in the ground state to give another PS•+, quantitatively. Based on these findings and investigations, it is clarified that the photochemical formation efficiency of the free PS•+ should be affected not only by -ΔGbet but also by the heavy-atom effect of the central metal ion, and/or the oxidation power of the excited PS2+, which should determine the distance between the excited PS and BIH at the moment of the electron transfer.
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Affiliation(s)
- Kyohei Ozawa
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1-NE-1 O-okayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Yusuke Tamaki
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1-NE-1 O-okayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Kei Kamogawa
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1-NE-1 O-okayama, Meguro-ku, Tokyo 152-8550, Japan
| | - Kazuhide Koike
- National Institute of Advanced Industrial Science and Technology, Onogawa 16-1, Tsukuba 305-8569, Japan
| | - Osamu Ishitani
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1-NE-1 O-okayama, Meguro-ku, Tokyo 152-8550, Japan
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19
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Westhuizen D, Conradie J, Eschwege KG. Electrochemistry of Os Bipyridyl and Phenanthroline Complexes, Comparison with Ru and Fe. ELECTROANAL 2020. [DOI: 10.1002/elan.202060300] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Deidré Westhuizen
- Department of Chemistry University of the Free State PO Box 339 Bloemfontein 9300 South Africa
| | - Jeanet Conradie
- Department of Chemistry University of the Free State PO Box 339 Bloemfontein 9300 South Africa
- Department of Chemistry UiT – The Arctic University of Norway Tromsø N-9037 Norway
| | - Karel G. Eschwege
- Department of Chemistry University of the Free State PO Box 339 Bloemfontein 9300 South Africa
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20
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Das S, Nugegoda D, Qu F, Boudreaux CM, Burrow PE, Figgins MT, Lamb RW, Webster CE, Delcamp JH, Papish ET. Structure Function Relationships in Ruthenium Carbon Dioxide Reduction Catalysts with CNC Pincers Containing Donor Groups. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000444] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Sanjit Das
- Department of Chemistry and Biochemistry, Shelby Hall The University of Alabama 35487 Tuscaloosa AL USA
| | - Dinesh Nugegoda
- Department of Chemistry and Biochemistry, Coulter Hall The University of Mississippi 38677 University MS USA
| | - Fengrui Qu
- Department of Chemistry and Biochemistry, Shelby Hall The University of Alabama 35487 Tuscaloosa AL USA
| | - Chance M. Boudreaux
- Department of Chemistry and Biochemistry, Shelby Hall The University of Alabama 35487 Tuscaloosa AL USA
| | - Phillip E. Burrow
- Department of Chemistry and Biochemistry, Coulter Hall The University of Mississippi 38677 University MS USA
| | - Matthew T. Figgins
- Department of Chemistry, Hand Lab Mississippi State University 39762 Mississippi State MS USA
| | - Robert W. Lamb
- Department of Chemistry, Hand Lab Mississippi State University 39762 Mississippi State MS USA
| | - Charles Edwin Webster
- Department of Chemistry, Hand Lab Mississippi State University 39762 Mississippi State MS USA
| | - Jared H. Delcamp
- Department of Chemistry and Biochemistry, Coulter Hall The University of Mississippi 38677 University MS USA
| | - Elizabeth T. Papish
- Department of Chemistry and Biochemistry, Shelby Hall The University of Alabama 35487 Tuscaloosa AL USA
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21
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Wang P, Dong R, Guo S, Zhao J, Zhang ZM, Lu TB. Improving photosensitization for photochemical CO 2-to-CO conversion. Natl Sci Rev 2020; 7:1459-1467. [PMID: 34691542 PMCID: PMC8288749 DOI: 10.1093/nsr/nwaa112] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/05/2019] [Accepted: 05/26/2020] [Indexed: 01/05/2023] Open
Abstract
Inspired by nature, improving photosensitization represents a vital direction for the development of artificial photosynthesis. The sensitization ability of photosensitizers (PSs) reflects in their electron-transfer ability, which highly depends on their excited-state lifetime and redox potential. Herein, for the first time, we put forward a facile strategy to improve sensitizing ability via finely tuning the excited state of Ru(II)-PSs (Ru-1–Ru-4) for efficient CO2 reduction. Remarkably, [Ru(Phen)2(3-pyrenylPhen)]2+ (Ru-3) exhibits the best sensitizing ability among Ru-1–Ru-4, over 17 times higher than that of typical Ru(Phen)32+. It can efficiently sensitize a dinuclear cobalt catalyst for CO2-to-CO conversion with a maximum turnover number of 66 480. Systematic investigations demonstrate that its long-lived excited state and suitable redox driving force greatly contributed to this superior sensitizing ability. This work provides a new insight into dramatically boosting photocatalytic CO2 reduction via improving photosensitization.
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Affiliation(s)
- Ping Wang
- MOE International Joint Laboratory of Materials Microstructure, Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Ru Dong
- MOE International Joint Laboratory of Materials Microstructure, Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Song Guo
- MOE International Joint Laboratory of Materials Microstructure, Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Jianzhang Zhao
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
| | - Zhi-Ming Zhang
- MOE International Joint Laboratory of Materials Microstructure, Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Tong-Bu Lu
- MOE International Joint Laboratory of Materials Microstructure, Institute for New Energy Materials and Low Carbon Technologies, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China
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22
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Asai Y, Katsuragi H, Kita K, Tsubomura T, Yamazaki Y. Photocatalytic CO 2 reduction using metal complexes in various ionic liquids. Dalton Trans 2020; 49:4277-4292. [PMID: 32154816 DOI: 10.1039/c9dt04689e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Aiming to diversify photocatalytic systems for CO2 reduction using metal complexes, this study investigated the use of various ionic liquids as reaction solvents. The photophysical properties of an Ir(iii) complex, functioning as a photosensitiser, and the photocatalytic ability of mixed systems consisting of the Ir(iii) photosensitiser and a Re(i) catalyst in twelve kinds of ionic liquids were systematically investigated by comparison with those in N,N-dimethylacetamide (DMA), which is a standard solvent for photocatalytic CO2 reduction. Even though the photophysical properties of the Ir(iii) complex in ionic-liquid solutions were quite similar to those in DMA, both the photosensitising ability of the Ir complex and the photocatalytic abilities of the systems strongly depended on the structures of the ionic liquids. Several ionic liquids were successfully used as new solvents for the photocatalytic systems showing durability similar to or higher than DMA solutions. The results demonstrated that even a small modification of the molecular structures of ionic liquids can control the efficiencies of both the photosensitising cycles and the catalytic cycles for CO2 reduction.
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Affiliation(s)
- Yoshiyuki Asai
- Department of Materials and Life Science, Seikei University, 3-3-1 Kichijoji-kitamachi, Musashino-shi, Tokyo, 180-8633, Japan.
| | - Haruka Katsuragi
- Department of Materials and Life Science, Seikei University, 3-3-1 Kichijoji-kitamachi, Musashino-shi, Tokyo, 180-8633, Japan.
| | - Kazuki Kita
- Department of Materials and Life Science, Seikei University, 3-3-1 Kichijoji-kitamachi, Musashino-shi, Tokyo, 180-8633, Japan.
| | - Taro Tsubomura
- Department of Materials and Life Science, Seikei University, 3-3-1 Kichijoji-kitamachi, Musashino-shi, Tokyo, 180-8633, Japan.
| | - Yasuomi Yamazaki
- Department of Materials and Life Science, Seikei University, 3-3-1 Kichijoji-kitamachi, Musashino-shi, Tokyo, 180-8633, Japan.
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23
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Umemoto A, Yamazaki Y, Saito D, Tamaki Y, Ishitani O. Synthesis of a Novel Re(I)-Ru(II)-Re(I) Trinuclear Complex as an Effective Photocatalyst for CO2 Reduction. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20190284] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Akinari Umemoto
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 O-okayama, E1-9, Meguro-ku, Tokyo 152-8550, Japan
| | - Yasuomi Yamazaki
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 O-okayama, E1-9, Meguro-ku, Tokyo 152-8550, Japan
| | - Daiki Saito
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 O-okayama, E1-9, Meguro-ku, Tokyo 152-8550, Japan
| | - Yusuke Tamaki
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 O-okayama, E1-9, Meguro-ku, Tokyo 152-8550, Japan
| | - Osamu Ishitani
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 O-okayama, E1-9, Meguro-ku, Tokyo 152-8550, Japan
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24
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Li G, Zhu D, Wang X, Su Z, Bryce MR. Dinuclear metal complexes: multifunctional properties and applications. Chem Soc Rev 2020; 49:765-838. [DOI: 10.1039/c8cs00660a] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Dinuclear metal complexes have enabled breakthroughs in OLEDs, photocatalytic water splitting and CO2reduction, DSPEC, chemosensors, biosensors, PDT and smart materials.
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Affiliation(s)
- Guangfu Li
- Department of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Dongxia Zhu
- Department of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Xinlong Wang
- Department of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
| | - Zhongmin Su
- Department of Chemistry
- Northeast Normal University
- Changchun
- P. R. China
- School of Chemistry and Environmental Engineering
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25
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Tian CX, Cui SC, Liu XY, Liu JG. A hybrid composite of rhenium complexes covalently grafted on reduced graphene oxide/hydrogenated TiO2 as an efficient catalyst for CO2 reduction under visible light. RESEARCH ON CHEMICAL INTERMEDIATES 2019. [DOI: 10.1007/s11164-019-04028-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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26
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Yaashikaa P, Senthil Kumar P, Varjani SJ, Saravanan A. A review on photochemical, biochemical and electrochemical transformation of CO2 into value-added products. J CO2 UTIL 2019. [DOI: 10.1016/j.jcou.2019.05.017] [Citation(s) in RCA: 186] [Impact Index Per Article: 37.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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27
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Cheung PL, Kapper SC, Zeng T, Thompson ME, Kubiak CP. Improving Photocatalysis for the Reduction of CO 2 through Non-covalent Supramolecular Assembly. J Am Chem Soc 2019; 141:14961-14965. [PMID: 31490687 DOI: 10.1021/jacs.9b07067] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
We report the enhancement of photocatalytic performance by introduction of hydrogen-bonding interactions to a Re bipyridine catalyst and Ru photosensitizer system (ReDAC/RuDAC) by the addition of amide substituents, with carbon monoxide (CO) and carbonate/bicarbonate as products. This system demonstrates a more-than-3-fold increase in turnover number (TONCO = 100 ± 4) and quantum yield (ΦCO = 23.3 ± 0.8%) for CO formation compared to the control system using unsubstituted Ru photosensitizer (RuBPY) and ReDAC (TONCO = 28 ± 4 and ΦCO = 7 ± 1%) in acetonitrile (MeCN) with 1,3-dimethyl-2-phenyl-2,3-dihydro-1H-benzo[d]imidazole (BIH) as sacrificial reductant. In dimethylformamide (DMF), a solvent that disrupts hydrogen bonds, the ReDAC/RuDAC system showed a decrease in catalytic performance while the control system exhibited an increase, indicating the role of hydrogen bonding in enhancing the photocatalysis for CO2 reduction through supramolecular assembly. The similar properties of RuDAC and RuBPY demonstrated in lifetime measurements, spectroscopic analysis, and electrochemical and spectroelectrochemical studies revealed that the enhancement in photocatalysis is due not to differences in intrinsic properties of the catalyst or photosensitizer, but to hydrogen-bonding interactions between them.
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Affiliation(s)
- Po Ling Cheung
- Department of Chemistry and Biochemistry , University of California-San Diego , 9500 Gilman Drive , La Jolla , California 92093-0358 , United States
| | - Savannah C Kapper
- Department of Chemistry , University of Southern California , Los Angeles , California 90089 , United States
| | - Tian Zeng
- Department of Chemistry and Biochemistry , University of California-San Diego , 9500 Gilman Drive , La Jolla , California 92093-0358 , United States
| | - Mark E Thompson
- Department of Chemistry , University of Southern California , Los Angeles , California 90089 , United States
| | - Clifford P Kubiak
- Department of Chemistry and Biochemistry , University of California-San Diego , 9500 Gilman Drive , La Jolla , California 92093-0358 , United States
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28
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Tamaki Y, Tokuda K, Yamazaki Y, Saito D, Ueda Y, Ishitani O. Ruthenium Picolinate Complex as a Redox Photosensitizer With Wide-Band Absorption. Front Chem 2019; 7:327. [PMID: 31139619 PMCID: PMC6527782 DOI: 10.3389/fchem.2019.00327] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 04/24/2019] [Indexed: 01/25/2023] Open
Abstract
Ruthenium(II) picolinate complex, [Ru(dmb)2(pic)]+ (Ru(pic); dmb = 4,4′-dimethyl-2,2′-bipyridine; Hpic = picolinic acid) was newly synthesized as a potential redox photosensitizer with a wider wavelength range of visible-light absorption compared with [Ru(N∧N)3]2+ (N∧N = diimine ligand), which is the most widely used redox photosensitizer. Based on our investigation of its photophysical and electrochemical properties, Ru(pic) was found to display certain advantageous characteristics of wide-band absorption of visible light (λabs < 670 nm) and stronger reduction ability in a one-electron reduced state (E1/2red = −1.86 V vs. Ag/AgNO3), which should function favorably in photon-absorption and electron transfer to the catalyst, respectively. Performing photocatalysis using Ru(pic) as a redox photosensitizer combined with a Re(I) catalyst reduced CO2 to CO under red-light irradiation (λex > 600 nm). TONCO reached 235 and ΦCO was 8.0%. Under these conditions, [Ru(dmb)3]2+ (Ru(dmb)) is not capable of working as a redox photosensitizer because it does not absorb light at λ > 560 nm. Even in irradiation conditions where both Ru(pic) and Ru(dmb) absorb light (λex > 500 nm), using Ru(pic) demonstrated faster CO formation (TOFCO = 6.7 min−1) and larger TONCO (2347) than Ru(dmb) (TOFCO = 3.6 min−1; TONCO = 2100). These results indicate that Ru(pic) is a superior redox photosensitizer over a wider wavelength range of visible-light absorption.
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Affiliation(s)
- Yusuke Tamaki
- Department of Chemistry, Tokyo Institute of Technology, Tokyo, Japan
| | - Kazuma Tokuda
- Department of Chemistry, Tokyo Institute of Technology, Tokyo, Japan
| | - Yasuomi Yamazaki
- Department of Chemistry, Tokyo Institute of Technology, Tokyo, Japan
| | - Daiki Saito
- Department of Chemistry, Tokyo Institute of Technology, Tokyo, Japan
| | - Yutaro Ueda
- Department of Chemistry, Tokyo Institute of Technology, Tokyo, Japan
| | - Osamu Ishitani
- Department of Chemistry, Tokyo Institute of Technology, Tokyo, Japan
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Yamazaki Y, Onoda T, Ishikawa J, Furukawa S, Tanaka C, Utsugi T, Tsubomura T. Photocatalytic CO 2 Reduction Using Various Heteroleptic Diimine-Diphosphine Cu(I) Complexes as Photosensitizers. Front Chem 2019; 7:288. [PMID: 31114784 PMCID: PMC6502988 DOI: 10.3389/fchem.2019.00288] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 04/08/2019] [Indexed: 11/13/2022] Open
Abstract
The development of efficient redox-photosensitizers based on the earth-abundant metal ions as an alternative toward noble- and/or rare-metal based photosensitizers is very desirable. In recent years, heteroleptic diimine-diphosphine Cu(I) complexes have been well investigated as one of the most remarkable candidates because of their great potentials as efficient photosensitizers. Here, we investigated the effects of the structure of the diphosphine ligands on the photosensitizing abilities using a series of Cu(I) complexes bearing 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (dmpp) and various diphosphine ligands in order to explore the suitable structure for the photosensitizing reactions. The number of methylene chains between the two phosphorous atoms in the diphosphine ligands was systematically changed from two to four, and the relationship between the length of the carbon chains and the photosensitizing abilities were investigated by conducting photocatalytic CO2 reduction with the Cu(I) complexes as photosensitizers. Turnover frequencies of the CO2 reduction drastically increased with increasing the length of the carbon chains. The systematic study herein reported suggests that the large P-Cu-P angles should be one of the most important factors for enhancing the photosensitizing abilities.
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Affiliation(s)
- Yasuomi Yamazaki
- Department of Materials and Life Science, Seikei University, Musashino-shi, Japan
| | - Takayuki Onoda
- Department of Materials and Life Science, Seikei University, Musashino-shi, Japan
| | - Jun Ishikawa
- Department of Materials and Life Science, Seikei University, Musashino-shi, Japan
| | - Shota Furukawa
- Department of Materials and Life Science, Seikei University, Musashino-shi, Japan
| | - Chinatsu Tanaka
- Department of Materials and Life Science, Seikei University, Musashino-shi, Japan
| | - Tomoya Utsugi
- Department of Materials and Life Science, Seikei University, Musashino-shi, Japan
| | - Taro Tsubomura
- Department of Materials and Life Science, Seikei University, Musashino-shi, Japan
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30
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Li X, Yu J, Jaroniec M, Chen X. Cocatalysts for Selective Photoreduction of CO2 into Solar Fuels. Chem Rev 2019; 119:3962-4179. [DOI: 10.1021/acs.chemrev.8b00400] [Citation(s) in RCA: 1094] [Impact Index Per Article: 218.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xin Li
- College of Forestry and Landscape Architecture, Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture, South China Agricultural University, Guangzhou, 510642, P. R. China
| | - Jiaguo Yu
- State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Mietek Jaroniec
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44242, United States
| | - Xiaobo Chen
- Department of Chemistry, University of Missouri—Kansas City, Kansas City, Missouri 64110, United States
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31
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Arumugam R, Shankar B, Shanmugam R, Arumuganathan T, Sathiyendiran M. Phosphine oxide-based tricarbonylrhenium(i) complexes from phosphine/phosphine oxide and dihydroxybenzoquinones. Dalton Trans 2018; 47:13894-13901. [PMID: 30226250 DOI: 10.1039/c8dt02985g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Neutral phosphine oxide (P[double bond, length as m-dash]O) donor-based organometallic complexes [{Re(CO)3O[double bond, length as m-dash]PCy3}{μ-DHBQ}{Re(CO)3O[double bond, length as m-dash]PCy3}] (1), [{Re(CO)3O[double bond, length as m-dash]PPh3}{μ-DHBQ}{Re(CO)3O[double bond, length as m-dash]PPh3}] (2), [{Re(CO)3O[double bond, length as m-dash]PCy3}{μ-THQ}{Re(CO)3O[double bond, length as m-dash]PCy3}] (3), [{Re(CO)3O[double bond, length as m-dash]PPh3}{μ-THQ}{Re(CO)3O[double bond, length as m-dash]PPh3}] (4), [{Re(CO)3O[double bond, length as m-dash]PCy3}{μ-CA}{Re(CO)3O[double bond, length as m-dash]PCy3}] (5), and [{Re(CO)3O[double bond, length as m-dash]PPh3}{μ-CA}{Re(CO)3O[double bond, length as m-dash]PPh3}] (6) were assembled from phosphine/phosphine oxide, a dihydroxybenzoquinone donor and Re2(CO)10via a one-pot solvothermal approach. The soft phosphine donor was transformed into a hard phosphine oxide donor during the formation of 1, 3, 4, 5, and 6. The complexes 1-6 were air and moisture stable and were soluble in polar organic solvents. The complexes were characterized by elemental analysis, FT-IR, and NMR spectroscopic methods. The molecular structures of 1, 2, 4, and 6 were analyzed by single-crystal X-ray diffraction analysis. The UV-Visible absorption studies indicated that 1-6 in THF display strong visible light absorption in the range of ∼350-700 nm.
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Affiliation(s)
- Ramar Arumugam
- Department of Chemistry, Thiagarajar College, Madurai 625 009, Tamil Nadu, India
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32
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Reaction mechanisms of catalytic photochemical CO2 reduction using Re(I) and Ru(II) complexes. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.11.023] [Citation(s) in RCA: 151] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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33
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Hasegawa E, Nagakura Y, Izumiya N, Matsumoto K, Tanaka T, Miura T, Ikoma T, Iwamoto H, Wakamatsu K. Visible Light and Hydroxynaphthylbenzimidazoline Promoted Transition-Metal-Catalyst-Free Desulfonylation of N-Sulfonylamides and N-Sulfonylamines. J Org Chem 2018; 83:10813-10825. [DOI: 10.1021/acs.joc.8b01536] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Eietsu Hasegawa
- Department of Chemistry, Faculty of Science, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
| | - Yuto Nagakura
- Department of Chemistry, Faculty of Science, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
| | - Norihiro Izumiya
- Department of Chemistry, Faculty of Science, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
| | - Keisuke Matsumoto
- Department of Chemistry, Faculty of Science, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
| | - Tsukasa Tanaka
- Department of Chemistry, Faculty of Science, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
| | - Tomoaki Miura
- Department of Chemistry, Faculty of Science, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
| | - Tadaaki Ikoma
- Department of Chemistry, Faculty of Science, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
- Center for Coordination of Research Facilities, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
| | - Hajime Iwamoto
- Department of Chemistry, Faculty of Science, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
| | - Kan Wakamatsu
- Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan
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Deng X, Albero J, Xu L, García H, Li Z. Construction of a Stable Ru–Re Hybrid System Based on Multifunctional MOF-253 for Efficient Photocatalytic CO2 Reduction. Inorg Chem 2018; 57:8276-8286. [DOI: 10.1021/acs.inorgchem.8b00896] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Xiaoyu Deng
- Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Josep Albero
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - Lizhi Xu
- Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Hermenegildo García
- Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - Zhaohui Li
- Research Institute of Photocatalysis, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
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35
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Hasegawa E, Izumiya N, Miura T, Ikoma T, Iwamoto H, Takizawa SY, Murata S. Benzimidazolium Naphthoxide Betaine Is a Visible Light Promoted Organic Photoredox Catalyst. J Org Chem 2018. [PMID: 29537851 DOI: 10.1021/acs.joc.8b00282] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Benzimidazolium naphthoxide (-ONap-BI+) was first synthesized and utilized as an unprecedented betaine photoredox catalyst. Photoexcited state of -ONap-BI+ generated by visible light irradiation catalyzes the reductive deiodination as well as desulfonylation reactions in which 1,3-dimethyl-2-phenylbenzimidazoline (Ph-BIH) cooperates with as an electron and hydrogen atom donor. Significant solvent effects on the reaction progress were discovered, and specific solvation toward imidazolium and naphthoxide moieties of -ONap-BI+ was proposed.
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Affiliation(s)
- Eietsu Hasegawa
- Department of Chemistry, Faculty of Science , Niigata University , 8050 Ikarashi-2 , Nishi-ku, Niigata 950-2181 , Japan
| | - Norihiro Izumiya
- Department of Chemistry, Faculty of Science , Niigata University , 8050 Ikarashi-2 , Nishi-ku, Niigata 950-2181 , Japan
| | - Tomoaki Miura
- Department of Chemistry, Faculty of Science , Niigata University , 8050 Ikarashi-2 , Nishi-ku, Niigata 950-2181 , Japan
| | - Tadaaki Ikoma
- Department of Chemistry, Faculty of Science , Niigata University , 8050 Ikarashi-2 , Nishi-ku, Niigata 950-2181 , Japan.,Center for Coordination of Research Facilities , Niigata University , 8050 Ikarashi-2 , Nishi-ku, Niigata 950-2181 , Japan
| | - Hajime Iwamoto
- Department of Chemistry, Faculty of Science , Niigata University , 8050 Ikarashi-2 , Nishi-ku, Niigata 950-2181 , Japan
| | - Shin-Ya Takizawa
- Department of Basic Science, Graduate School of Arts and Sciences , The University of Tokyo , 3-8-1 Komaba , Meguro-ku, Tokyo 153-8902 , Japan
| | - Shigeru Murata
- Department of Basic Science, Graduate School of Arts and Sciences , The University of Tokyo , 3-8-1 Komaba , Meguro-ku, Tokyo 153-8902 , Japan
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36
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Elgrishi N, Chambers MB, Wang X, Fontecave M. Molecular polypyridine-based metal complexes as catalysts for the reduction of CO 2. Chem Soc Rev 2018; 46:761-796. [PMID: 28084485 DOI: 10.1039/c5cs00391a] [Citation(s) in RCA: 326] [Impact Index Per Article: 54.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Polypyridyl transition metal complexes represent one of the more thoroughly studied classes of molecular catalysts towards CO2 reduction to date. Initial reports in the 1980s began with an emphasis on 2nd and 3rd row late transition metals, but more recently the focus has shifted towards earlier metals and base metals. Polypyridyl platforms have proven quite versatile and amenable to studying various parameters that govern product distribution for CO2 reduction. However, open questions remain regarding the key mechanistic steps that govern product selectivity and efficiency. Polypyridyl complexes have also been immobilized through a variety of methods to afford active catalytic materials for CO2 reductions. While still an emerging field, materials incorporating molecular catalysts represent a promising strategy for electrochemical and photoelectrochemical devices capable of CO2 reduction. In general, this class of compounds remains the most promising for the continued development of molecular systems for CO2 reduction and an inspiration for the design of related non-polypyridyl catalysts.
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Affiliation(s)
- Noémie Elgrishi
- Laboratoire de Chimie des Processus Biologiques, Collège de France, Université Pierre et Marie Curie, CNRS UMR 8229, 11 place Marcelin Berthelot, 75005 Paris, France.
| | - Matthew B Chambers
- Laboratoire de Chimie des Processus Biologiques, Collège de France, Université Pierre et Marie Curie, CNRS UMR 8229, 11 place Marcelin Berthelot, 75005 Paris, France.
| | - Xia Wang
- Laboratoire de Chimie des Processus Biologiques, Collège de France, Université Pierre et Marie Curie, CNRS UMR 8229, 11 place Marcelin Berthelot, 75005 Paris, France.
| | - Marc Fontecave
- Laboratoire de Chimie des Processus Biologiques, Collège de France, Université Pierre et Marie Curie, CNRS UMR 8229, 11 place Marcelin Berthelot, 75005 Paris, France.
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37
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Yamazaki Y, Ishitani O. Synthesis of Os(ii)-Re(i)-Ru(ii) hetero-trinuclear complexes and their photophysical properties and photocatalytic abilities. Chem Sci 2017; 9:1031-1041. [PMID: 29675150 PMCID: PMC5885982 DOI: 10.1039/c7sc04162d] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Accepted: 11/29/2017] [Indexed: 11/21/2022] Open
Abstract
Novel Os(ii)–Re(i)–Ru(ii) hetero-trinuclear complexes, which can absorb a wide range of visible light and induce durable CO2 reduction, were synthesised.
Photofunctional trinuclear complexes containing three different central metals, i.e. Os(ii), Re(i) and Ru(ii), were synthesised for the first time using stepwise Mizoroki–Heck reactions. The vinylene groups in the bridging ligands of the Os(ii)–Re(i)–Ru(ii) trinuclear complexes were selectively reduced by photochemical hydrogenation in moderate yield, affording novel supramolecular photocatalysts which can absorb a wide range of visible light up to 730 nm and induce CO2 reduction with high selectivity and durability. The turnover numbers of CO formation were over 4300. Details of the photophysical properties of these new trinuclear complexes, especially their intramolecular excitation-energy transfer phenomena, are also reported.
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Affiliation(s)
- Yasuomi Yamazaki
- Department of Chemistry , Graduate School of Science and Engineering , Tokyo Institute of Technology , 2-12-1-NE-1 Ookayama, Meguro-ku , Tokyo , 152-8550 , Japan .
| | - Osamu Ishitani
- Department of Chemistry , Graduate School of Science and Engineering , Tokyo Institute of Technology , 2-12-1-NE-1 Ookayama, Meguro-ku , Tokyo , 152-8550 , Japan .
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38
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Mengele AK, Seibold GM, Eikmanns BJ, Rau S. Coupling Molecular Photocatalysis to Enzymatic Conversion. ChemCatChem 2017. [DOI: 10.1002/cctc.201701232] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Alexander K. Mengele
- Institute of Inorganic Chemistry I, Materials and Catalysis; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Gerd M. Seibold
- Institute of Microbiology and Biotechnology; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Bernhard J. Eikmanns
- Institute of Microbiology and Biotechnology; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
| | - Sven Rau
- Institute of Inorganic Chemistry I, Materials and Catalysis; Ulm University; Albert-Einstein-Allee 11 89081 Ulm Germany
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39
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Emission tuning in Re(I) complexes: Expanding heterocyclic ligands and/or introduction of perfluorinated ligands. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.08.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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40
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Cheong HY, Kim SY, Cho YJ, Cho DW, Kim CH, Son HJ, Pac C, Kang SO. Photosensitization Behavior of Ir(III) Complexes in Selective Reduction of CO2 by Re(I)-Complex-Anchored TiO2 Hybrid Catalyst. Inorg Chem 2017; 56:12042-12053. [DOI: 10.1021/acs.inorgchem.7b01963] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Ha-Yeon Cheong
- Department of Advanced Materials
Chemistry, Korea University, Sejong 30019, Korea
| | - So-Yoen Kim
- Department of Advanced Materials
Chemistry, Korea University, Sejong 30019, Korea
| | - Yang-Jin Cho
- Department of Advanced Materials
Chemistry, Korea University, Sejong 30019, Korea
| | - Dae Won Cho
- Department of Advanced Materials
Chemistry, Korea University, Sejong 30019, Korea
| | - Chul Hoon Kim
- Department of Advanced Materials
Chemistry, Korea University, Sejong 30019, Korea
| | - Ho-Jin Son
- Department of Advanced Materials
Chemistry, Korea University, Sejong 30019, Korea
| | - Chyongjin Pac
- Department of Advanced Materials
Chemistry, Korea University, Sejong 30019, Korea
| | - Sang Ook Kang
- Department of Advanced Materials
Chemistry, Korea University, Sejong 30019, Korea
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41
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Kumagai H, Sahara G, Maeda K, Higashi M, Abe R, Ishitani O. Hybrid photocathode consisting of a CuGaO 2 p-type semiconductor and a Ru(ii)-Re(i) supramolecular photocatalyst: non-biased visible-light-driven CO 2 reduction with water oxidation. Chem Sci 2017; 8:4242-4249. [PMID: 29081960 PMCID: PMC5635723 DOI: 10.1039/c7sc00940b] [Citation(s) in RCA: 112] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 04/05/2017] [Indexed: 12/23/2022] Open
Abstract
A CuGaO2 p-type semiconductor electrode was successfully employed for constructing a new hybrid photocathode with a Ru(ii)-Re(i) supramolecular photocatalyst (RuRe/CuGaO2). The RuRe/CuGaO2 photocathode displayed photoelectrochemical activity for the conversion of CO2 to CO in an aqueous electrolyte solution with a positive onset potential of +0.3 V vs. Ag/AgCl, which is 0.4 V more positive in comparison to a previously reported hybrid photocathode that used a NiO electrode instead of CuGaO2. A photoelectrochemical cell comprising this RuRe/CuGaO2 photocathode and a CoO x /TaON photoanode enabled the visible-light-driven catalytic reduction of CO2 using water as a reductant to give CO and O2 without applying any external bias. This is the first self-driven photoelectrochemical cell constructed with the molecular photocatalyst to achieve the reduction of CO2 by only using visible light as the energy source and water as a reductant.
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Affiliation(s)
- Hiromu Kumagai
- Department of Chemistry , School of Science , Tokyo Institute of Technology , O-okayama 2-12-1-NE-1, Meguro-ku , Tokyo 152-8550 , Japan .
| | - Go Sahara
- Department of Chemistry , School of Science , Tokyo Institute of Technology , O-okayama 2-12-1-NE-1, Meguro-ku , Tokyo 152-8550 , Japan .
| | - Kazuhiko Maeda
- Department of Chemistry , School of Science , Tokyo Institute of Technology , O-okayama 2-12-1-NE-1, Meguro-ku , Tokyo 152-8550 , Japan .
| | - Masanobu Higashi
- Department of Energy and Hydrocarbon Chemistry , Graduate School of Engineering , Kyoto University , Katsura, Nishikyo-ku , Kyoto 615-8510 , Japan
| | - Ryu Abe
- Department of Energy and Hydrocarbon Chemistry , Graduate School of Engineering , Kyoto University , Katsura, Nishikyo-ku , Kyoto 615-8510 , Japan
| | - Osamu Ishitani
- Department of Chemistry , School of Science , Tokyo Institute of Technology , O-okayama 2-12-1-NE-1, Meguro-ku , Tokyo 152-8550 , Japan .
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42
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Product Selectivity in Homogeneous Artificial Photosynthesis Using [(bpy)Rh(Cp*)X]n+-Based Catalysts. INORGANICS 2017. [DOI: 10.3390/inorganics5020035] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Due to the limited amount of fossil energy carriers, the storage of solar energy in chemical bonds using artificial photosynthesis has been under intensive investigation within the last decades. As the understanding of the underlying working principle of these complex systems continuously grows, more focus will be placed on a catalyst design for highly selective product formation. Recent reports have shown that multifunctional photocatalysts can operate with high chemoselectivity, forming different catalysis products under appropriate reaction conditions. Within this context [(bpy)Rh(Cp*)X]n+-based catalysts are highly relevant examples for a detailed understanding of product selectivity in artificial photosynthesis since the identification of a number of possible reaction intermediates has already been achieved.
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43
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Affiliation(s)
- Yusuke Tamaki
- Department of Chemistry,
School of Science, Tokyo Institute of Technology, 2-12-1-NE-1, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Osamu Ishitani
- Department of Chemistry,
School of Science, Tokyo Institute of Technology, 2-12-1-NE-1, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
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44
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Matsuzaki K, Hiromura T, Tokunaga E, Shibata N. Trifluoroethoxy-Coated Subphthalocyanine affects Trifluoromethylation of Alkenes and Alkynes even under Low-Energy Red-Light Irradiation. ChemistryOpen 2017; 6:226-230. [PMID: 28413756 PMCID: PMC5390801 DOI: 10.1002/open.201600172] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2016] [Revised: 01/23/2017] [Indexed: 12/23/2022] Open
Abstract
Photoredox chemical reactions induced by visible light have undergone a renaissance in recent years. Polypyridyl dyes such as Ir(ppy)3 and Ru(bpy)3 are key catalysts in this event, and blue- or white-light irradiation is required for the chemical transformations. However, it remains a challenge to achieve reactions under the lower energy of red light. We disclose, herein, that trifluoroethoxy-coated subphthalocyanine realizes the red-light-driven trifluoromethylation of alkenes and alkynes with trifluoromethyl iodide in good-to-high yields. Perfluoroalkylations were also achieved under red light. The reaction mechanism is discussed with the support of UV/Vis spectroscopy and cyclic voltammetry of trifluoroethoxy-coated subphthalocyanine. Light irradiation/dark study also supports the proposed mechanism.
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Affiliation(s)
- Kohei Matsuzaki
- Department of Nanopharmaceutical Sciences & Department of Life and Applied ChemistryNagoya Institute of Technology, Gokiso, Showa-kuNagoya466–8555Japan
| | - Tomoya Hiromura
- Department of Nanopharmaceutical Sciences & Department of Life and Applied ChemistryNagoya Institute of Technology, Gokiso, Showa-kuNagoya466–8555Japan
| | - Etsuko Tokunaga
- Department of Nanopharmaceutical Sciences & Department of Life and Applied ChemistryNagoya Institute of Technology, Gokiso, Showa-kuNagoya466–8555Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences & Department of Life and Applied ChemistryNagoya Institute of Technology, Gokiso, Showa-kuNagoya466–8555Japan
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45
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La Porte NT, Martinez JF, Hedström S, Rudshteyn B, Phelan BT, Mauck CM, Young RM, Batista VS, Wasielewski MR. Photoinduced electron transfer from rylenediimide radical anions and dianions to Re(bpy)(CO) 3 using red and near-infrared light. Chem Sci 2017; 8:3821-3831. [PMID: 28580115 PMCID: PMC5436599 DOI: 10.1039/c6sc05103k] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Accepted: 02/27/2017] [Indexed: 11/21/2022] Open
Abstract
A major goal of artificial photosynthesis research is photosensitizing highly reducing metal centers using as much as possible of the solar spectrum reaching Earth's surface. The radical anions and dianions of rylenediimide (RDI) dyes, which absorb at wavelengths as long as 950 nm, are powerful photoreductants with excited state oxidation potentials that rival or exceed those of organometallic chromophores. These dyes have been previously incorporated into all-organic donor-acceptor systems, but have not yet been shown to reduce organometallic centers. This study describes a set of dyads in which perylenediimide (PDI) or naphthalenediimide (NDI) chromophores are attached to Re(bpy)(CO)3 through either the bipyridine ligand or more directly to the Re center via a pyridine ligand. The chromophores are reduced with a mild reducing agent, after which excitation with long-wavelength red or near-infrared light leads to reduction of the Re complex. The kinetics of electron transfer from the photoexcited anions to the Re complex are monitored using transient visible/near-IR and mid-IR spectroscopy, complemented by theoretical spectroscopic assignments. The photo-driven charge shift from the reduced PDI or NDI to the complex occurs in picoseconds regardless of whether PDI or NDI is attached to the bipyridine or to the Re center, but back electron transfer is found to be three orders of magnitude slower with the chromophore attached to the Re center. These results will inform the design of future catalytic systems that incorporate RDI anions as chromophores.
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Affiliation(s)
- Nathan T La Porte
- Department of Chemistry , Argonne-Northwestern Solar Energy Research (ANSER) Center , Northwestern University , Evanston , Illinois 60208-3113 , USA .
| | - Jose F Martinez
- Department of Chemistry , Argonne-Northwestern Solar Energy Research (ANSER) Center , Northwestern University , Evanston , Illinois 60208-3113 , USA .
| | - Svante Hedström
- Department of Chemistry , Argonne-Northwestern Solar Energy Research (ANSER) Center , Energy Sciences Institute , Yale University , New Haven , Connecticut 06520 , USA
| | - Benjamin Rudshteyn
- Department of Chemistry , Argonne-Northwestern Solar Energy Research (ANSER) Center , Energy Sciences Institute , Yale University , New Haven , Connecticut 06520 , USA
| | - Brian T Phelan
- Department of Chemistry , Argonne-Northwestern Solar Energy Research (ANSER) Center , Northwestern University , Evanston , Illinois 60208-3113 , USA .
| | - Catherine M Mauck
- Department of Chemistry , Argonne-Northwestern Solar Energy Research (ANSER) Center , Northwestern University , Evanston , Illinois 60208-3113 , USA .
| | - Ryan M Young
- Department of Chemistry , Argonne-Northwestern Solar Energy Research (ANSER) Center , Northwestern University , Evanston , Illinois 60208-3113 , USA .
| | - Victor S Batista
- Department of Chemistry , Argonne-Northwestern Solar Energy Research (ANSER) Center , Energy Sciences Institute , Yale University , New Haven , Connecticut 06520 , USA
| | - Michael R Wasielewski
- Department of Chemistry , Argonne-Northwestern Solar Energy Research (ANSER) Center , Northwestern University , Evanston , Illinois 60208-3113 , USA .
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46
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Wada K, Eguchi M, Ishitani O, Maeda K. Activation of the Carbon Nitride Surface by Silica in a CO-Evolving Hybrid Photocatalyst. CHEMSUSCHEM 2017; 10:287-295. [PMID: 27552963 DOI: 10.1002/cssc.201600661] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 07/20/2016] [Indexed: 05/12/2023]
Abstract
Photocatalytic reduction of CO2 to CO proceeded by visible light (λ>400 nm) using mesoporous graphitic carbon nitride (C3 N4 ) coupled with a RuII -ReI binuclear complex (RuRe) containing a photosensitizer and catalytic units. The selectivity to CO exceeded 90 % during the initial stage. Photocatalytic reactions (including isotope tracer experiments) and electrochemical measurements revealed that the reaction proceeded according to a two-step photoexcitation of C3 N4 and the RuII photosensitizer unit, that is, it followed the Z-Scheme mechanism. Modification of C3 N4 with highly dispersed silica was found to improve the ability of C3 N4 to accommodate RuRe, which enhanced the photocatalytic activity for CO production.
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Affiliation(s)
- Keisuke Wada
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1-NE-2 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Miharu Eguchi
- Eelectronic Functional Materials Group, Polymer Materials Unit, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Osamu Ishitani
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1-NE-2 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Kazuhiko Maeda
- Department of Chemistry, School of Science, Tokyo Institute of Technology, 2-12-1-NE-2 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan
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47
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Kuriki R, Maeda K. Development of hybrid photocatalysts constructed with a metal complex and graphitic carbon nitride for visible-light-driven CO2 reduction. Phys Chem Chem Phys 2017; 19:4938-4950. [DOI: 10.1039/c6cp07973c] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The research progress of metal-complex/C3N4 hybrid photocatalysts for CO2 reduction made by our group is highlighted.
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Affiliation(s)
- Ryo Kuriki
- Department of Chemistry
- School of Science
- Tokyo Institute of Technology
- Tokyo 152-8550
- Japan
| | - Kazuhiko Maeda
- Department of Chemistry
- School of Science
- Tokyo Institute of Technology
- Tokyo 152-8550
- Japan
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48
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Wang X, Goudy V, Genesio G, Maynadié J, Meyer D, Fontecave M. Ruthenium–cobalt dinuclear complexes as photocatalysts for CO2 reduction. Chem Commun (Camb) 2017; 53:5040-5043. [DOI: 10.1039/c6cc09941f] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of Ru–Co dinuclear complexes have been synthesized and assayed as photocatalysts for the reduction of CO2 to CO in organic solvents.
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Affiliation(s)
- X. Wang
- Laboratoire de Chimie des Processus Biologiques
- UMR 8229 CNRS
- Collège de France
- Université P. et M. Curie
- PSL Research University
| | - V. Goudy
- Laboratoire des Systèmes Hybrides pour la Séparation
- Institut de Chimie Séparative de Marcoule
- UMR 5257 CEA/CNRS/UM/ENSCM
- 30207 Bagnols-sur-Cèze CEDEX
- France
| | - G. Genesio
- Laboratoire des Systèmes Hybrides pour la Séparation
- Institut de Chimie Séparative de Marcoule
- UMR 5257 CEA/CNRS/UM/ENSCM
- 30207 Bagnols-sur-Cèze CEDEX
- France
| | - J. Maynadié
- Laboratoire des Systèmes Hybrides pour la Séparation
- Institut de Chimie Séparative de Marcoule
- UMR 5257 CEA/CNRS/UM/ENSCM
- 30207 Bagnols-sur-Cèze CEDEX
- France
| | - D. Meyer
- Laboratoire des Systèmes Hybrides pour la Séparation
- Institut de Chimie Séparative de Marcoule
- UMR 5257 CEA/CNRS/UM/ENSCM
- 30207 Bagnols-sur-Cèze CEDEX
- France
| | - M. Fontecave
- Laboratoire de Chimie des Processus Biologiques
- UMR 8229 CNRS
- Collège de France
- Université P. et M. Curie
- PSL Research University
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49
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Ishida H, Sakaba A. Temperature dependence of photocatalytic CO2reduction by trans(Cl)–Ru(bpy)(CO)2Cl2: activation energy difference between CO and formate production. Faraday Discuss 2017; 198:263-277. [PMID: 28294231 DOI: 10.1039/c6fd00242k] [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
The temperature dependence of photocatalytic CO2reduction bytrans(Cl)–Ru(bpy)(CO)2Cl2(bpy: 2,2′-bipyridine) has been researched in ethanol (EtOH)/N,N-dimethylacetamide (DMA) solutions containing [Ru(bpy)3]2+(a photosensitizer) and 1-benzyl-1,4-dihydronicotinamide (BNAH, an electron donor). The catalytic system efficiently reduces CO2to carbon monoxide (CO) with formate (HCOO−) as a minor product. The mechanism of the catalysis consists of the electron-relay cycle and the catalytic cycle: in the former cycle the photochemically generated reduced species of the photosensitizer injects an electron to the catalyst, and in the latter the catalyst reduces CO2. At a low concentration of the catalyst (5.0 μM), where the catalytic cycle is rate-determining, the temperature dependence of CO/HCOO−is also dependent on the EtOH contents: the selectivity of CO/HCOO−decreases in 20% and 40%-EtOH/DMA with increasing temperature, while it increases in 60%-EtOH/DMA. The temperature dependence of the CO/HCOO−selectivity indicates that the difference in activation energy (ΔΔG‡) between CO and HCOO−production is estimated asca.3.06 kJ mol−1in 40%-EtOH/DMA at 298 K.
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Affiliation(s)
- Hitoshi Ishida
- Department of Chemistry
- Graduate School of Science
- Kitasato University
- Sagamihara
- Japan
| | - Akihiko Sakaba
- Department of Chemistry
- Graduate School of Science
- Kitasato University
- Sagamihara
- Japan
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50
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Yoshida M, Kondo M, Okamura M, Kanaike M, Haesuwannakij S, Sakurai H, Masaoka S. Fe, Ru, and Os complexes with the same molecular framework: comparison of structures, properties and catalytic activities. Faraday Discuss 2017; 198:181-196. [DOI: 10.1039/c6fd00227g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A series of group 8 metal complexes with the same molecular framework, [M(PY5Me2)L]n+ (M = Fe, Ru, and Os; PY5Me2 = 2,6-bis[1,1-bis(2-pyridyl)ethyl]pyridine; L = monodentate ligand), were successfully synthesized and structurally characterized. The spectroscopic and electrochemical properties as well as the catalytic activity for water oxidation of these complexes were investigated.
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Affiliation(s)
- Masaki Yoshida
- Department of Life and Coordination-Complex Molecular Science
- Institute for Molecular Science (IMS)
- Okazaki
- Japan
| | - Mio Kondo
- Department of Life and Coordination-Complex Molecular Science
- Institute for Molecular Science (IMS)
- Okazaki
- Japan
- SOKENDAI [The Graduate University for Advanced Studies]
| | - Masaya Okamura
- Department of Life and Coordination-Complex Molecular Science
- Institute for Molecular Science (IMS)
- Okazaki
- Japan
- Department of Chemistry
| | - Mari Kanaike
- Department of Life and Coordination-Complex Molecular Science
- Institute for Molecular Science (IMS)
- Okazaki
- Japan
| | - Setsiri Haesuwannakij
- Department of Life and Coordination-Complex Molecular Science
- Institute for Molecular Science (IMS)
- Okazaki
- Japan
- SOKENDAI [The Graduate University for Advanced Studies]
| | - Hidehiro Sakurai
- ACT-C
- Japan Science and Technology Agency (JST)
- Saitama
- Japan
- Department of Applied Chemistry
| | - Shigeyuki Masaoka
- Department of Life and Coordination-Complex Molecular Science
- Institute for Molecular Science (IMS)
- Okazaki
- Japan
- SOKENDAI [The Graduate University for Advanced Studies]
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