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Lu Z, Mitra D, Narayan SR, Williams TJ. An Immobilized (Carbene)Nickel Catalyst for Water Oxidation. Polyhedron 2024; 252:116880. [PMID: 38435834 PMCID: PMC10907011 DOI: 10.1016/j.poly.2024.116880] [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] [Indexed: 03/05/2024]
Abstract
The oxygen evolution reaction (OER) of water splitting is essential to electrochemical energy storage applications. While nickel electrodes are widely available heterogeneous OER catalysts, homogeneous nickel catalysts for OER are underexplored. Here we report two carbene-ligated nickel(II) complexes that are exceptionally robust and efficient homogeneous water oxidation catalysts. Remarkably, these novel nickel complexes can assemble a stable thin film onto a metal electrode through poly-imidazole bridges, making them supported heterogeneous electrochemical catalysts that are resilient to leaching and stripping. Unlike molecular catalysts and nanoparticle catalysts, such electrode-supported metal-complex catalysts for OER are rare and have the potential to inspire new designs. The electrochemical OER with our nickel-carbene catalysts exhibits excellent current densities with high efficiency, low Tafel slope, and useful longevity for a base metal catalyst. Our data show that imidazole carbene ligands stay bonded to the nickel(II) centers throughout the catalysis, which allows the facile oxygen evolution.
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Affiliation(s)
- Zhiyao Lu
- Donald P. and Katherine B. Loker Hydrocarbon Institute, Wrigley Institute for Environment and Sustainability, and Department of Chemistry, University of Southern California, Los Angeles, California, 90089-1661, United States
| | - Debanjan Mitra
- Donald P. and Katherine B. Loker Hydrocarbon Institute, Wrigley Institute for Environment and Sustainability, and Department of Chemistry, University of Southern California, Los Angeles, California, 90089-1661, United States
| | - Sri R. Narayan
- Donald P. and Katherine B. Loker Hydrocarbon Institute, Wrigley Institute for Environment and Sustainability, and Department of Chemistry, University of Southern California, Los Angeles, California, 90089-1661, United States
| | - Travis J. Williams
- Donald P. and Katherine B. Loker Hydrocarbon Institute, Wrigley Institute for Environment and Sustainability, and Department of Chemistry, University of Southern California, Los Angeles, California, 90089-1661, United States
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2
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da Silva Alvim R, Esio Bresciani A, Alves RMB. Formic acid stability in different solvents by DFT calculations. J Mol Model 2024; 30:67. [PMID: 38345658 DOI: 10.1007/s00894-024-05849-9] [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: 11/19/2023] [Accepted: 01/17/2024] [Indexed: 03/16/2024]
Abstract
CONTEXT New technologies have been developed toward the use of green energies. The production of formic acid (FA) from carbon dioxide (CO[Formula: see text]) hydrogenation with H[Formula: see text] is a sustainable process for H[Formula: see text] storage. However, the FA adduct stabilization is thermodynamically dependent on the type of solvent and thermodynamic conditions. The results suggest a wide range of dielectric permittivity values between the dimethyl sulfoxide (DMSO) and water solvents to stabilize the FA in the absence of base. The thermodynamics analysis and the infrared and charge density difference results show that the formation of the FA complex with H[Formula: see text]O is temperature dependent and has a major influence on aqueous solvents compared to the FA adduct with amine, in good agreement with the experiment. In these conditions, the stability thermodynamic of the FA molecule may be favorable at non-organic solvents and dielectric permittivity values closer to water. Therefore, a mixture of aqueous solvents with possible ionic composition could be used to increase the thermodynamic stability of H[Formula: see text] storage in CO[Formula: see text] conversion processes. METHODS Using the Quantum ESPRESSO package, density functional theory (DFT) calculations were performed with periodic boundary conditions, and the electronic wave functions were expanded in plane waves. For the exchange-correlation functional, we use the vdW-DF functional with the inclusion of van der Waals (vdW) forces. Electron-ion interactions are treated by the projector augmented wave (PAW) method with pseudopotentials available in the PSlibrary repository. The wave functions and the electronic densities were expanded employing accurate cut-off energies of 6.80[Formula: see text]10[Formula: see text] and 5.44[Formula: see text]10[Formula: see text] eV, respectively. The electronic density was computed from the wave functions calculated at the [Formula: see text]-point in the first Brillouin-zone. Each structural optimization was minimized according to the Broyden-Fletcher-Goldfarb-Shanno (BFGS) algorithm, with force and energy convergence criteria of 25 meV[Formula: see text]Å[Formula: see text] and 1.36 meV, respectively. The electrostatic solvation effects were performed by the [Formula: see text] package with the Self-Consistent Continuum Solvation (SCCS) approach.
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Affiliation(s)
- Raphael da Silva Alvim
- Departamento de Engenharia Química, Escola Politécnica, Universidade de São Paulo, São Paulo, SP, 05508-900, Brazil.
| | - Antonio Esio Bresciani
- Departamento de Engenharia Química, Escola Politécnica, Universidade de São Paulo, São Paulo, SP, 05508-900, Brazil
| | - Rita Maria Brito Alves
- Departamento de Engenharia Química, Escola Politécnica, Universidade de São Paulo, São Paulo, SP, 05508-900, Brazil
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3
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Kaur M, Adhikari M, Manar KK, Yogesh Y, Prakash D, Singh S. BICAAC-Derived Covalent and Cationic Ir(I) Complexes: Application of Ir(BICAAC)Cl(COD) Complexes as Catalysts for Transfer Hydrogenation and Hydrosilylation Reactions. Inorg Chem 2024; 63:1513-1523. [PMID: 38192194 DOI: 10.1021/acs.inorgchem.3c01914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
The ambiphilic bicyclic (alkyl)(amino)carbenes (Me/iPrBICAAC) upon reaction with [IrCl(COD)]2 smoothly afford mononuclear Ir(I) complexes that have been spectroscopically and structurally characterized. These complexes exhibit good catalytic activity for transfer hydrogenation (TH) of 4-chlorobenzaldehyde using isopropyl alcohol (iPrOH), with turnover frequency values ranging between 6269 and 8093 h-1. Choosing the covalent complex Ir(MeBICAAC)Cl(COD) as a catalyst, a wide array of carbonyls and imines functionalized with electron-withdrawing and electron-donating substituents have been surveyed and afforded their reduced products in moderate-to-good yields. No detachment of the BICAAC unit from the Ir center was observed upon prolonged heating of Ir(MeBICAAC)Cl(COD) in toluene-d8 or isopropyl alcohol-d8, which evidenced good thermal stability of the catalyst. Complex Ir(MeBICAAC)Cl(COD) was also found to be catalytically active for the hydrosilylation of a variety of aldehydes using triethylsilane (Et3SiH).
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Affiliation(s)
- Mandeep Kaur
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali 140306, Punjab, India
| | - Manu Adhikari
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali 140306, Punjab, India
| | - Krishna K Manar
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali 140306, Punjab, India
| | - Yuvraj Yogesh
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali 140306, Punjab, India
| | - Darsana Prakash
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali 140306, Punjab, India
| | - Sanjay Singh
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali 140306, Punjab, India
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4
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Qi H, Mao S, Rabeah J, Qu R, Yang N, Chen Z, Bourriquen F, Yang J, Li J, Junge K, Beller M. Water-Promoted Carbon-Carbon Bond Cleavage Employing a Reusable Fe Single-Atom Catalyst. Angew Chem Int Ed Engl 2023; 62:e202311913. [PMID: 37681485 DOI: 10.1002/anie.202311913] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/07/2023] [Accepted: 09/08/2023] [Indexed: 09/09/2023]
Abstract
The development of methods for selective cleavage reactions of thermodynamically stable C-C/C=C bonds in a green manner is a challenging research field which is largely unexplored. Herein, we present a heterogeneous Fe-N-C catalyst with highly dispersed iron centers that allows for the oxidative C-C/C=C bond cleavage of amines, secondary alcohols, ketones, and olefins in the presence of air (O2 ) and water (H2 O). Mechanistic studies reveal the presence of water to be essential for the performance of the Fe-N-C system, boosting the product yield from <1 % to >90 %. Combined spectroscopic characterizations and control experiments suggest the singlet 1 O2 and hydroxide species generated from O2 and H2 O, respectively, take selectively part in the C-C bond cleavage. The broad applicability (>40 examples) even for complex drugs as well as high activity, selectivity, and durability under comparably mild conditions highlight this unique catalytic system.
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Affiliation(s)
- Haifeng Qi
- Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Shuxin Mao
- Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Jabor Rabeah
- Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Ruiyang Qu
- Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Na Yang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Zupeng Chen
- Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
- Analytical & Testing Center College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Florian Bourriquen
- Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Ji Yang
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Jianfeng Li
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Kathrin Junge
- Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
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5
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Do VK, Vargas NA, Chavez AJ, Zhang L, Cherepakhin V, Lu Z, Currier RP, Dub PA, Gordon JC, Williams TJ. Pressurized Formic Acid Dehydrogenation: An Entropic Spring Replaces Hydrogen Compression Cost. Catal Sci Technol 2022; 12:7182-7189. [PMID: 37192930 PMCID: PMC10168027 DOI: 10.1039/d2cy00676f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Formic acid is unique among liquid organic hydrogen carriers (LOHCs), because its dehydrogenation is highly entropically driven. This enables the evolution of high-pressure hydrogen at mild temperatures that is difficult to achieve with other LOHCs, conceptually by releasing the "spring" of energy stored entropically in the liquid carrier. Applications calling for hydrogen-on-demand, such as vehicle filling, require pressurized H2. Hydrogen compression dominates the cost for such applications, yet there are very few reports of selective, catalytic dehydrogenation of formic acid at elevated pressure. Herein, we show that homogenous catalysts with various ligand frameworks, including Noyori-type tridentate (PNP, SNS, SNP, SNPO), bidentate chelates (pyridyl)NHC, (pyridyl)phosphine, (pyridyl)sulfonamide, and their metallic precursors, are suitable catalysts for the dehydrogenation of neat formic acid under self-pressurizing conditions. Quite surprisingly, we discovered that their structural differences can be related to performance differences in their respective structural families, with some tolerant or intolerant of pressure and others that are significantly advantaged by pressurized conditions. We further find important roles for H2 and CO in catalyst activation and speciation. In fact, for certain systems, CO behaves as a healing reagent when trapped in a pressurizing reactor system, enabling extended life from systems that would be otherwise deactivated.
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Affiliation(s)
- Van K Do
- Loker Hydrocarbon Research Institute, Wrigley Institute for Environmental Studies, and Department of Chemistry, University of Southern California, Los Angeles, California, 90089, United States
| | - Nicolas Alfonso Vargas
- Loker Hydrocarbon Research Institute, Wrigley Institute for Environmental Studies, and Department of Chemistry, University of Southern California, Los Angeles, California, 90089, United States
| | - Anthony J Chavez
- Loker Hydrocarbon Research Institute, Wrigley Institute for Environmental Studies, and Department of Chemistry, University of Southern California, Los Angeles, California, 90089, United States
| | - Long Zhang
- Loker Hydrocarbon Research Institute, Wrigley Institute for Environmental Studies, and Department of Chemistry, University of Southern California, Los Angeles, California, 90089, United States
| | - Valeriy Cherepakhin
- Loker Hydrocarbon Research Institute, Wrigley Institute for Environmental Studies, and Department of Chemistry, University of Southern California, Los Angeles, California, 90089, United States
| | - Zhiyao Lu
- Loker Hydrocarbon Research Institute, Wrigley Institute for Environmental Studies, and Department of Chemistry, University of Southern California, Los Angeles, California, 90089, United States
| | - Robert P Currier
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Pavel A Dub
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - John C Gordon
- National Security Education Center (NSEC), Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Travis J Williams
- Loker Hydrocarbon Research Institute, Wrigley Institute for Environmental Studies, and Department of Chemistry, University of Southern California, Los Angeles, California, 90089, United States
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Jiménez MV, Ojeda-Amador AI, Puerta-Oteo R, Martínez-Sal J, Passarelli V, Pérez-Torrente JJ. Selective Oxidation of Glycerol via Acceptorless Dehydrogenation Driven by Ir(I)-NHC Catalysts. Molecules 2022; 27:7666. [PMID: 36431768 PMCID: PMC9696977 DOI: 10.3390/molecules27227666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/03/2022] [Accepted: 11/05/2022] [Indexed: 11/09/2022] Open
Abstract
Iridium(I) compounds featuring bridge-functionalized bis-NHC ligands (NHC = N-heterocyclic carbene), [Ir(cod)(bis-NHC)] and [Ir(CO)2(bis-NHC)], have been prepared from the appropriate carboxylate- or hydroxy-functionalized bis-imidazolium salts. The related complexes [Ir(cod)(NHC)2]+ and [IrCl(cod)(NHC)(cod)] have been synthesized from a 3-hydroxypropyl functionalized imidazolium salt. These complexes have been shown to be robust catalysts in the oxidative dehydrogenation of glycerol to lactate (LA) with dihydrogen release. High activity and selectivity to LA were achieved in an open system under low catalyst loadings using KOH as a base. The hydroxy-functionalized bis-NHC catalysts are much more active than both the carboxylate-functionalized ones and the unbridged bis-NHC iridium(I) catalyst with hydroxyalkyl-functionalized NHC ligands. In general, carbonyl complexes are more active than the related 1,5-cyclooctadiene ones. The catalyst [Ir(CO)2{(MeImCH2)2CHOH}]Br exhibits the highest productivity affording TONs to LA up to 15,000 at very low catalyst loadings.
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Affiliation(s)
- M. Victoria Jiménez
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-C.S.I.C., 50009 Zaragoza, Spain
| | | | | | | | | | - Jesús J. Pérez-Torrente
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-C.S.I.C., 50009 Zaragoza, Spain
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7
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Vatsa A, Mishra A, Padhi SK. Monitoring of catalytic dehydrogenation of formic acid by a ruthenium (II) complex through manometry. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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8
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Iridium(triNHC)-Catalyzed Transfer Hydrogenation of Glycerol Carbonate without Exogenous Reductants. Catalysts 2022. [DOI: 10.3390/catal12060656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
Abstract
The iridium(Ir) (triNHC = tri-N-heterocyclic carbene)-catalyzed transfer hydrogenation of glycerol carbonate (GC) is described in the absence of additional hydride sources. The described reduction provides a sustainable route to produce industrially-valuable formate and lactate with high turnover numbers (TONs). The bimetallic Ir(I) involving triNHC carbene ligands exhibits high TONs, and the reaction mechanism, including the bimetallic Ir(triNHC) catalyst, is proposed based on mechanistic studies.
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9
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Su P, Li Y, Ke Z. Metal Effect Meets Volcano Plots: A DFT Study on Tris(phosphino)borane-Transition Metal Complexes Catalyzed H 2 Activation. Chem Asian J 2021; 16:3427-3436. [PMID: 34463040 DOI: 10.1002/asia.202100772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/24/2021] [Indexed: 11/07/2022]
Abstract
Bifunctional transition metal complexes are of particular interest in metal-ligand cooperative activation of small molecules. As a novel type of bifunctional catalyst, Lewis acid transition metal (LA-TM) complexes have attracted increasing interest in hydrogen activation and storage. To advance the catalyst design, herein the metal effect of LA-TM complexes on the hydrogen activation has been systematically studied with a series of tris(phosphino)borane (TPB) complexes with V, Cr, Mn, Fe, Co, and Ni as metal centers. The metal effect not only influences the mechanism of hydrogen activation, but also notably casts a volcano plot for the activity. TPB complexes of V, Cr, Mn, Fe, and Co tend to activate H2 through a stepwise mechanism, while TPB-Ni prefers a synergetic mechanism for H2 activation. More importantly, the metal effect significantly influences the activity of H2 activation and the formation of the LA-H-TM bridging hydride. The trend of changes in the LA-H-TM structures, the second-order perturbation stabilization energies, and the Laplacian bond orders, along with different metals (from V to Ni), are all interestingly constitute volcano plots for the performance of TPB-TM complexes catalyzed H2 activation. TPB-Mn and TPB-Fe are found to be the optimal catalysts among the discussed TPB-TM complexes. The volcano plots disclosed for the metal effects should be informative and instructive for homogeneous and heterogeneous LA-TM catalysts development.
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Affiliation(s)
- Peifeng Su
- School of Materials Science and Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Yinwu Li
- School of Materials Science and Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Zhuofeng Ke
- School of Materials Science and Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510006, P. R. China
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10
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Luque-Gómez A, García-Abellán S, Munarriz J, Polo V, Passarelli V, Iglesias M. Impact of Green Cosolvents on the Catalytic Dehydrogenation of Formic Acid: The Case of Iridium Catalysts Bearing NHC-phosphane Ligands. Inorg Chem 2021; 60:15497-15508. [PMID: 34558914 PMCID: PMC8527458 DOI: 10.1021/acs.inorgchem.1c02132] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The catalysts [Ir(COD)(κ3-P,C,P'-PCNHCP)]BF4 and [Ir(COD)(κ2-P,C-PCNHCO)]BF4 proved to be active in the solventless dehydrogenation of formic acid. The impact of various cosolvents on the activity was evaluated, showing an outstanding improvement of the catalytic performance of [Ir(COD)(κ2-P,C-PCNHCO)]BF4] in "green" organic carbonates: namely, dimethyl carbonate (DMC) and propylene carbonate (PC). The TOF1h value for [Ir(COD)(κ2-P,C-PCNHCO)]BF4 increases from 61 to 988 h-1 upon changing from solventless conditions to a 1/1 (v/v) DMC/HCOOH mixture. However, in the case of [Ir(COD)(PCNHCP)]BF4, only a marginal improvement from 156 to 172 h-1 was observed under analogous conditions. Stoichiometric experiments allowed the identification of various key reaction intermediates, providing valuable information on their reactivity. Experimental data and DFT calculations point to the formation of dinuclear species as the catalyst deactivation pathway, which is prevented in the presence of DMC and PC.
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Affiliation(s)
- Ana Luque-Gómez
- Departamento Química Inorgánica-Instituto Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza-CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Susana García-Abellán
- Departamento Química Inorgánica-Instituto Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza-CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Julen Munarriz
- Departamento Química Física y Analítica, Universidad de Oviedo, Avda. Julian Clavería 8, 33006 Oviedo, Spain
| | - Victor Polo
- Departamento Química Física-Instituto de Biocomputación y Física de Sistemas Complejos (BIFI), Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Vincenzo Passarelli
- Departamento Química Inorgánica-Instituto Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza-CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
| | - Manuel Iglesias
- Departamento Química Inorgánica-Instituto Síntesis Química y Catálisis Homogénea (ISQCH), Universidad de Zaragoza-CSIC, C/Pedro Cerbuna 12, 50009 Zaragoza, Spain
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11
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Iridium(NHC)-Catalyzed Sustainable Transfer Hydrogenation of CO2 and Inorganic Carbonates. Catalysts 2021. [DOI: 10.3390/catal11060695] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Iridium(NHC)-catalyzed transfer hydrogenation (TH) of CO2 and inorganic carbonates with glycerol were conducted, demonstrating excellent turnover numbers (TONs) and turnover frequencies (TOFs) for the formation of formate and lactate. Regardless of carbon sources, excellent TOFs of formate were observed (CO2: 10,000 h−1 and K2CO3: 10,150 h−1). Iridium catalysts modified with the triscarbene ligand showed excellent catalytic activity at 200 °C and are a suitable choice for this transformation which requires a high temperature for high TONs of formate. On the basis of the control experiments, the transfer hydrogenation mechanism of CO2 was proposed.
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12
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Bahuguna A, Sasson Y. Formate-Bicarbonate Cycle as a Vehicle for Hydrogen and Energy Storage. CHEMSUSCHEM 2021; 14:1258-1283. [PMID: 33231357 DOI: 10.1002/cssc.202002433] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/20/2020] [Indexed: 05/19/2023]
Abstract
In recent years, hydrogen has been considered a promising energy carrier for a sustainable energy economy in the future. An easy solution for the safer storage of hydrogen is challenging and efficient methods are still being explored in this direction. Despite having some progress in this area, no cost-effective and easily applicable solutions that fulfill the requirements of industry are yet to be claimed. Currently, the storage of hydrogen is largely limited to high-pressure compression and liquefaction or in the form of metal hydrides. Formic acid is a good source of hydrogen that also generates CO2 along with hydrogen on decomposition. Moreover, the hydrogenation of CO2 is thermodynamically unfavorable and requires high energy input. Alkali metal formates are alternative mild and noncorrosive sources of hydrogen. On decomposition, these metal formates release hydrogen and generate bicarbonates. The generated bicarbonates can be catalytically charged back to alkali formates under optimized hydrogen pressure. Hence, the formate-bicarbonate-based systems being carbon neutral at ambient condition has certain advantages over formic acid. The formate-bicarbonate cycle can be considered as a vehicle for hydrogen and energy storage. The whole process is carbon-neutral, reversible, and sustainable. This Review emphasizes the various catalytic systems employed for reversible formate-bicarbonate conversion. Moreover, a mechanistic investigation, the effect of temperature, pH, kinetics of reversible formate-bicarbonate conversion, and new insights in the field are also discussed in detail.
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Affiliation(s)
- Ashish Bahuguna
- Casali Center of Applied Chemistry, Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
| | - Yoel Sasson
- Casali Center of Applied Chemistry, Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
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13
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Quinlivan PJ, Loo A, Shlian DG, Martinez J, Parkin G. N-Heterocyclic Carbene Complexes of Nickel, Palladium, and Iridium Derived from Nitron: Synthesis, Structures, and Catalytic Properties. Organometallics 2021. [DOI: 10.1021/acs.organomet.0c00679] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Patrick J. Quinlivan
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Aaron Loo
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Daniel G. Shlian
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Joan Martinez
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Gerard Parkin
- Department of Chemistry, Columbia University, New York, New York 10027, United States
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14
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Guérin V, Legault CY. Synthesis of NHC-Iridium(III) Complexes Based on N-Iminoimidazolium Ylides and Their Use for the Amine Alkylation by Borrowing Hydrogen Catalysis. Organometallics 2021. [DOI: 10.1021/acs.organomet.0c00726] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Vincent Guérin
- University of Sherbrooke, Department of Chemistry, Centre in Green Chemistry and Catalysis,2500 boul. de l’Université, Sherbrooke, Québec J1K 2R1, Canada
| | - Claude Y. Legault
- University of Sherbrooke, Department of Chemistry, Centre in Green Chemistry and Catalysis,2500 boul. de l’Université, Sherbrooke, Québec J1K 2R1, Canada
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15
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Romero AH. Reduction of Nitroarenes via Catalytic Transfer Hydrogenation Using Formic Acid as Hydrogen Source: A Comprehensive Review. ChemistrySelect 2020. [DOI: 10.1002/slct.202002838] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Angel H. Romero
- Laboratorio de Química Orgánica y Química Medicinal Departamento de Química Orgánica Facultad de Ciencias Universidad de la Republica Igual 4225 11400 Montevideo
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16
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Cheong Y, Sung K, Kim J, Kim YK, Jang H. Highly Efficient Iridium‐Catalyzed Production of Hydrogen and Lactate from Glycerol: Rapid Hydrogen Evolution by Bimetallic Iridium Catalysts. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000670] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yeon‐Joo Cheong
- Department of Energy Systems Research Ajou University 16499 Suwon South Korea
| | - Kihyuk Sung
- Department of Energy Systems Research Ajou University 16499 Suwon South Korea
| | - Jin‐A Kim
- Department of Energy Systems Research Ajou University 16499 Suwon South Korea
| | - Yu Kwon Kim
- Department of Energy Systems Research Ajou University 16499 Suwon South Korea
| | - Hye‐Young Jang
- Department of Energy Systems Research Ajou University 16499 Suwon South Korea
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17
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Cherepakhin V, Hellman A, Lan Z, Mallikarjun Sharada S, Williams TJ. Heterobimetallic complexes of IrM (M = Fe II, Co II, and Ni II) core and bridging 2-(diphenylphosphino)pyridine: electronic structure and electrochemical behavior. Dalton Trans 2020; 49:10509-10515. [PMID: 32748911 DOI: 10.1039/d0dt01801e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Three complexes based on an Ir-M (M = FeII, CoII, and NiII) heterobimetallic core and 2-(diphenylphosphino)pyridine (Ph2PPy) ligand were synthesized via the reaction of trans-[IrCl(CO)(Ph2PPy)2] and the corresponding metal chloride. Their structures were established by single-crystal X-ray diffraction as [Ir(CO)(μ-Cl)(μ-Ph2PPy)2FeCl2]·2CH2Cl2 (2), [IrCl(CO)(μ-Ph2PPy)2CoCl2]·2CH2Cl2 (3), and [Ir(CO)(μ-Cl)(μ-Ph2PPy)2NiCl2]·2CH2Cl2 (4). Time-dependent DFT computations suggest a donor-acceptor interaction between a filled 5dz2 orbital on iridium and an empty orbital on the first-row metal atom, which is supported by UV-vis studies. Magnetic moment measurements show that the first-row metals are in their high-spin electronic configurations. Cyclic voltammetry data show that all the complexes undergo irreversible decomposition upon either reduction or oxidation. Reduction of 4 proceeds through an ECE mechanism. While these complexes are not stable to electrocatalysis conditions, the data presented here refine our understanding of the bonding synergies of the first-row and third-row metals.
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Affiliation(s)
- Valeriy Cherepakhin
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, USA.
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18
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Moran MJ, Martina K, Baricco F, Tagliapietra S, Manzoli M, Cravotto G. Tuneable Copper Catalysed Transfer Hydrogenation of Nitrobenzenes to Aniline or Azo Derivatives. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000127] [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)
- Maria Jesus Moran
- Dipartimento di Scienza e Tecnologia del FarmacoUniversity of Turin Via Pietro Giuria 9 10125 Turin Italy
| | - Katia Martina
- Dipartimento di Scienza e Tecnologia del FarmacoUniversity of Turin Via Pietro Giuria 9 10125 Turin Italy
| | - Francesca Baricco
- Dipartimento di Scienza e Tecnologia del FarmacoUniversity of Turin Via Pietro Giuria 9 10125 Turin Italy
| | - Silvia Tagliapietra
- Dipartimento di Scienza e Tecnologia del FarmacoUniversity of Turin Via Pietro Giuria 9 10125 Turin Italy
| | - Maela Manzoli
- Dipartimento di Scienza e Tecnologia del FarmacoUniversity of Turin Via Pietro Giuria 9 10125 Turin Italy
| | - Giancarlo Cravotto
- Dipartimento di Scienza e Tecnologia del FarmacoUniversity of Turin Via Pietro Giuria 9 10125 Turin Italy
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19
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Dutta M, Das K, Prathapa SJ, Srivastava HK, Kumar A. Selective and high yield transformation of glycerol to lactic acid using NNN pincer ruthenium catalysts. Chem Commun (Camb) 2020; 56:9886-9889. [DOI: 10.1039/d0cc02884c] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A sterically less hindered 2,6-bis(benzimidazol-2-yl)pyridine based pincer–ruthenium complex has been used here to accomplish the catalytic conversion of glycerol selectively to lactic acid in high yield.
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Affiliation(s)
- Moumita Dutta
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati – 781039
- India
| | - Kanu Das
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati – 781039
- India
| | | | - Hemant Kumar Srivastava
- Department of Medicinal Chemistry
- National Institute of Pharmaceutical Education and Research Guwahati
- Guwahati – 781101
- India
| | - Akshai Kumar
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati – 781039
- India
- Centre for Nanotechnology
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20
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Zhang L, Lu X, Ji L, Yan N, Sun Z, Zhu X. Catalytic Effect of Facile Synthesized TiH 1.971 Nanoparticles on the Hydrogen Storage Properties of MgH 2. NANOMATERIALS 2019; 9:nano9101370. [PMID: 31554311 PMCID: PMC6835683 DOI: 10.3390/nano9101370] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 09/16/2019] [Accepted: 09/23/2019] [Indexed: 01/16/2023]
Abstract
Catalytic doping plays an important role in enhancing the hydrogen storage performance of MgH2, while finding an efficient and reversible catalyst remains to be a great challenge in enhancing the de/rehydrogenation properties of MgH2. Herein, a bidirectional nano-TiH1.971 catalyst was prepared by a wet chemical ball milling method and its effect on hydrogen storage properties of MgH2 was studied. The results showed that all the TiH1.971 nanoparticles were effective in improving the de/rehydrogenation kinetics of MgH2. The MgH2 composites doped with TiH1.971 could desorb 6.5 wt % H2 in 8 min at 300 °C, while the pure MgH2 only released 0.3 wt % H2 in 8 min and 1.5 wt % H2 even in 50 min. It was found that the smaller the size of the TiH1.971 particles, the better was the catalytic effect in promoting the performance of MgH2. Besides, the catalyst concentration also played an important role and the 5 wt %-c-TiH1.971 modified system was found to have the best hydrogen storage performance. Interestingly, a significant hydrogen absorption amount of 4.60 wt % H2 was evidenced for the 5 wt %-c-TiH1.971 doped MgH2 within 10 min at 125 °C, while MgH2 absorbed only 4.11 wt% hydrogen within the same time at 250 °C. The XRD results demonstrated that the TiH1.971 remained stable in cycling and could serve as an active site for hydrogen transportation, which contributed to the significant improvement of the hydrogen storage properties of MgH2.
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Affiliation(s)
- Liuting Zhang
- School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang 212003, China; (X.L.); (L.J.); (N.Y.); (Z.S.)
- Correspondence: (L.Z.); (X.Z.)
| | - Xiong Lu
- School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang 212003, China; (X.L.); (L.J.); (N.Y.); (Z.S.)
| | - Liang Ji
- School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang 212003, China; (X.L.); (L.J.); (N.Y.); (Z.S.)
| | - Nianhua Yan
- School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang 212003, China; (X.L.); (L.J.); (N.Y.); (Z.S.)
| | - Ze Sun
- School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang 212003, China; (X.L.); (L.J.); (N.Y.); (Z.S.)
| | - Xinqiao Zhu
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621999, China
- Correspondence: (L.Z.); (X.Z.)
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21
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Kumar A, Semwal S, Choudhury J. Catalytic Conversion of CO2 to Formate with Renewable Hydrogen Donors: An Ambient-Pressure and H2-Independent Strategy. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04430] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Abhishek Kumar
- Organometallics and Smart Materials Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal 462 066, India
| | - Shrivats Semwal
- Organometallics and Smart Materials Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal 462 066, India
| | - Joyanta Choudhury
- Organometallics and Smart Materials Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal 462 066, India
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22
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Pan Y, Guan C, Li H, Chakraborty P, Zhou C, Huang KW. CO2 hydrogenation by phosphorus–nitrogen PN3P-pincer iridium hydride complexes: elucidation of the deactivation pathway. Dalton Trans 2019; 48:12812-12816. [DOI: 10.1039/c9dt01319a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PN3P–Ir pincer hydride complexes were synthesized and characterized as catalysts and key intermediates in the direct hydrogenation of CO2 to formate under mild conditions.
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Affiliation(s)
- Yupeng Pan
- KAUST Catalysis Center and Division of Physical Sciences and Engineering
- King Abdullah University of Science and Technology
- Thuwal 23955-6900
- Saudi Arabia
- Shenzhen Grubbs Institute
| | - Chao Guan
- KAUST Catalysis Center and Division of Physical Sciences and Engineering
- King Abdullah University of Science and Technology
- Thuwal 23955-6900
- Saudi Arabia
| | - Huaifeng Li
- KAUST Catalysis Center and Division of Physical Sciences and Engineering
- King Abdullah University of Science and Technology
- Thuwal 23955-6900
- Saudi Arabia
| | - Priyanka Chakraborty
- KAUST Catalysis Center and Division of Physical Sciences and Engineering
- King Abdullah University of Science and Technology
- Thuwal 23955-6900
- Saudi Arabia
| | - Chunhui Zhou
- KAUST Catalysis Center and Division of Physical Sciences and Engineering
- King Abdullah University of Science and Technology
- Thuwal 23955-6900
- Saudi Arabia
| | - Kuo-Wei Huang
- KAUST Catalysis Center and Division of Physical Sciences and Engineering
- King Abdullah University of Science and Technology
- Thuwal 23955-6900
- Saudi Arabia
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23
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Lauridsen PJ, Lu Z, Celaje JJA, Kedzie EA, Williams TJ. Conformational twisting of a formate-bridged diiridium complex enables catalytic formic acid dehydrogenation. Dalton Trans 2018; 47:13559-13564. [PMID: 30206593 PMCID: PMC6168401 DOI: 10.1039/c8dt03268h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We previously reported that iridium complex 1a enables the first homogeneous catalytic dehydrogenation of neat formic acid and enjoys unusual stability through millions of turnovers. Binuclear iridium hydride species 5a, which features a provocative C2-symmetric geometry, was isolated from the reaction as a catalyst resting state. By synthesizing and carefully examining the catalytic initiation of a series of analogues to 1a, we establish here a strong correlation between the formation of C2-twisted iridium dimers analogous to 5a and the reactivity of formic acid dehydrogenation: an efficient C2 twist appears unique to 1a and essential to catalytic reactivity.
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Affiliation(s)
- Paul J Lauridsen
- Loker Hydrocarbon Research Institute and Department of Chemistry, University of Southern California, 837 Bloom Walk, Los Angeles, CA 90089-1661, USA.
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