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Bhattacharyya HP, Sarma M. Efficiency Conceptualization Model: A Theoretical Method for Predicting the Turnover of Catalysts. Chemphyschem 2024; 25:e202400004. [PMID: 38619023 DOI: 10.1002/cphc.202400004] [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: 01/02/2024] [Revised: 04/11/2024] [Accepted: 04/15/2024] [Indexed: 04/16/2024]
Abstract
In recent times, the theoretical prediction of catalytic efficiency is of utmost urgency. With the advent of density functional theory (DFT), reliable computations can delineate a quantitative aspect of the study. To this state-of-the-art approach, valuable incorporation would be a tool that can acknowledge the efficiency of a catalyst. In the current work, we developed the efficiency conceptualization model (ECM) that utilizes the quantum mechanical tool to achieve efficiency in terms of turnover frequency (TOF). Twenty-six experimentally designed transition metal (TM) water oxidation catalysts were chosen under similar experimental conditions of temperature, pressure, and pH to execute the same. The computations conclude that the Fe-based [Fe(OTf)2(Me2Pytacn)] (MWOC-17) is a highly active catalyst and, therefore, can endure for more time in the catalytic cycle. Our results conclude that the Ir-based catalysts [Cp*Ir(κ2-N,O)X] with MWOC-23: X=Cl; and MWOC-24: X=NO3 report the highest computed turnover numbers (TONs),τ c o m p u t e d T O N 0 ${\tau _{computed\;TON}^0 }$ of 406 and 490 against the highest experimental TONs,τ e x p e r i m e n t a l T O N ${\tau _{experimental\;TON} }$ of 1200 and 2000 respectively, whereas the Co-based [Co(12-TMC)]2+ (MWOC-19) has the lowest TONs (τ c o m p u t e d T O N 0 ${\tau _{computed\;TON}^0 }$ =19, τexperimental TON=16) among the chosen catalysts and thereby successful in corroborating the previous experimental results.
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Affiliation(s)
| | - Manabendra Sarma
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam, 781039, India
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2
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Brotons-Rufes A, Bahri-Laleh N, Poater A. H-Bonding leading to latent initiators for olefin metathesis polymerization. Faraday Discuss 2023; 244:252-268. [PMID: 37186245 DOI: 10.1039/d2fd00163b] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Ruthenium-NHC based catalysts, with a chelated iminium ligand trans to the N-heterocyclic carbene (NHC) ligand, that polymerize dicyclopentadiene (DCPD) at different temperatures are monitored using Density Functional Theory calculations to unveil the reaction mechanism, and subsequently how important are the geometrical and electronic features vs. the non-covalent interactions in between. The balance is very fragile and H-bonds are fundamental to explain the different behaviour of latent catalysts. This computational study aims to facilitate future studies of new generations of latent initiators for olefin metathesis polymerization, with the 3D and mainly the 2D Non-Covalent Interaction plots the characterization tool for H-bonds.
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Affiliation(s)
- Artur Brotons-Rufes
- Institut de Química Computacional i Catàlisi, Departament de Química, Universitat de Girona, c/Maria Aurèlia Capmany 69, 17003 Girona, Catalonia, Spain.
| | - Naeimeh Bahri-Laleh
- Polymerization Engineering Department, Iran Polymer and Petrochemical Institute (IPPI), P.O. Box 14965/115, Tehran, Iran.
| | - Albert Poater
- Institut de Química Computacional i Catàlisi, Departament de Química, Universitat de Girona, c/Maria Aurèlia Capmany 69, 17003 Girona, Catalonia, Spain.
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3
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Green Energy by Hydrogen Production from Water Splitting, Water Oxidation Catalysis and Acceptorless Dehydrogenative Coupling. INORGANICS 2023. [DOI: 10.3390/inorganics11020088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
Abstract
In this review, we want to explain how the burning of fossil fuels is pushing us towards green energy. Actually, for a long time, we have believed that everything is profitable, that resources are unlimited and there are no consequences. However, the reality is often disappointing. The use of non-renewable resources, the excessive waste production and the abandonment of the task of recycling has created a fragile thread that, once broken, may never restore itself. Metaphors aside, we are talking about our planet, the Earth, and its unique ability to host life, including ourselves. Our world has its balance; when the wind erodes a mountain, a beach appears, or when a fire devastates an area, eventually new life emerges from the ashes. However, humans have been distorting this balance for decades. Our evolving way of living has increased the number of resources that each person consumes, whether food, shelter, or energy; we have overworked everything to exhaustion. Scientists worldwide have already said actively and passively that we are facing one of the biggest problems ever: climate change. This is unsustainable and we must try to revert it, or, if we are too late, slow it down as much as possible. To make this happen, there are many possible methods. In this review, we investigate catalysts for using water as an energy source, or, instead of water, alcohols. On the other hand, the recycling of gases such as CO2 and N2O is also addressed, but we also observe non-catalytic means of generating energy through solar cell production.
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4
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Ahmadi M, Poater A, Seiffert S. Self-Sorting of Transient Polymer Networks by the Selective Formation of Heteroleptic Metal–Ligand Complexes. Macromolecules 2023. [DOI: 10.1021/acs.macromol.2c02046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
- Mostafa Ahmadi
- Department of Chemistry, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
| | - Albert Poater
- Institut de Química Computacional i Catàlisi, Departament de Química, Universitat de Girona, c/Ma Aurèlia Capmany 69, 17003 Girona, Catalonia, Spain
| | - Sebastian Seiffert
- Department of Chemistry, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany
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5
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Wang L, Wang L. Ligands modification strategies for mononuclear water splitting catalysts. Front Chem 2022; 10:996383. [PMID: 36238101 PMCID: PMC9551221 DOI: 10.3389/fchem.2022.996383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Accepted: 08/03/2022] [Indexed: 11/13/2022] Open
Abstract
Artificial photosynthesis (AP) has been proved to be a promising way of alleviating global climate change and energy crisis. Among various materials for AP, molecular complexes play an important role due to their favorable efficiency, stability, and activity. As a result of its importance, the topic has been extensively reviewed, however, most of them paid attention to the designs and preparations of complexes and their water splitting mechanisms. In fact, ligands design and preparation also play an important role in metal complexes’ properties and catalysis performance. In this review, we focus on the ligands that are suitable for designing mononuclear catalysts for water splitting, providing a coherent discussion at the strategic level because of the availability of various activity studies for the selected complexes. Two main designing strategies for ligands in molecular catalysts, substituents modification and backbone construction, are discussed in detail in terms of their potentials for water splitting catalysts.
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6
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Gimferrer M, Joly N, Escayola S, Viñas E, Gaillard S, Solà M, Renaud JL, Salvador P, Poater A. Knölker Iron Catalysts for Hydrogenation Revisited: A Nonspectator Solvent and Fine-Tuning. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00099] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Martí Gimferrer
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, c/Ma̲ Aurèlia Capmany 69, 17003 Girona, Catalonia, Spain
| | - Nicolas Joly
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, c/Ma̲ Aurèlia Capmany 69, 17003 Girona, Catalonia, Spain
- Normandie Univ, LCMT, ENSICAEN, UNICAEN, CNRS, 6 boulevard du Maréchal Juin, 14000 Caen, France
| | - Sílvia Escayola
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, c/Ma̲ Aurèlia Capmany 69, 17003 Girona, Catalonia, Spain
- Donostia International Physics Center (DIPC), Manuel Lardizabal Ibilbidea 4, 20018 Donostia, Euskadi, Spain
| | - Eduard Viñas
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, c/Ma̲ Aurèlia Capmany 69, 17003 Girona, Catalonia, Spain
| | - Sylvain Gaillard
- Normandie Univ, LCMT, ENSICAEN, UNICAEN, CNRS, 6 boulevard du Maréchal Juin, 14000 Caen, France
| | - Miquel Solà
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, c/Ma̲ Aurèlia Capmany 69, 17003 Girona, Catalonia, Spain
| | - Jean-Luc Renaud
- Normandie Univ, LCMT, ENSICAEN, UNICAEN, CNRS, 6 boulevard du Maréchal Juin, 14000 Caen, France
| | - Pedro Salvador
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, c/Ma̲ Aurèlia Capmany 69, 17003 Girona, Catalonia, Spain
| | - Albert Poater
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, c/Ma̲ Aurèlia Capmany 69, 17003 Girona, Catalonia, Spain
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7
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Unveiling the complexity of the dual gold(I) catalyzed intermolecular hydroamination of alkynes leading to vinylazoles. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2021.112090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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8
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Poater J, Heitkämper J, Poater A, Maraval V, Chauvin R. Zwitterionic Aromaticity on Azulene Extrapolated to
carbo
‐Azulene. European J Org Chem 2021. [DOI: 10.1002/ejoc.202101228] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Jordi Poater
- Departament de Química Inorgànica i Orgànica & IQTCUB Universitat de Barcelona 08028 Barcelona Spain
- ICREA 08010 Barcelona Spain
| | - Juliane Heitkämper
- Universität Stuttgart Institut für Theoretische Chemie Pfaffenwaldring 55 70569 Stuttgart Germany
- Institut de Química Computacional i Catàlisi and Departament de Química Universitat de Girona, c/ Mª Aurèlia Capmany 69 17003 Girona, Catalonia Spain
| | - Albert Poater
- Institut de Química Computacional i Catàlisi and Departament de Química Universitat de Girona, c/ Mª Aurèlia Capmany 69 17003 Girona, Catalonia Spain
| | - Valérie Maraval
- LCC-CNRS University of Toulouse 205 route de Narbonne 31077 Toulouse France
| | - Remi Chauvin
- LCC-CNRS University of Toulouse 205 route de Narbonne 31077 Toulouse France
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9
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Swann MT, Nicholas KM. Structural Effects on Dioxygen Evolution from Ru(V)−Oxo Complexes. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Matthew T. Swann
- Department of Chemistry and Biochemistry University of Oklahoma 101 Stephenson Parkway Norman OK 73069 USA
| | - Kenneth M. Nicholas
- Department of Chemistry and Biochemistry University of Oklahoma 101 Stephenson Parkway Norman OK 73069 USA
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10
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Escayola S, Poater J, Ramos M, Luque‐Urrutia JA, Duran J, Simon S, Solà M, Cavallo L, Nolan SP, Poater A. Chelation enforcing a dual gold configuration in the catalytic hydroxyphenoxylation of alkynes. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6362] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Sílvia Escayola
- Institut de Química Computacional i Catàlisi, Departament de Química Universitat de Girona Girona Spain
| | - Jordi Poater
- Departament de Química Inorgànica i Orgànica and IQTCUB Universitat de Barcelona Barcelona Spain
- ICREA Barcelona Spain
| | - Miguel Ramos
- Institut de Química Computacional i Catàlisi, Departament de Química Universitat de Girona Girona Spain
| | | | - Josep Duran
- Institut de Química Computacional i Catàlisi, Departament de Química Universitat de Girona Girona Spain
| | - Sílvia Simon
- Institut de Química Computacional i Catàlisi, Departament de Química Universitat de Girona Girona Spain
| | - Miquel Solà
- Institut de Química Computacional i Catàlisi, Departament de Química Universitat de Girona Girona Spain
| | - Luigi Cavallo
- KAUST Catalysis Center (KCC) King Abdullah University of Science and Technology Thuwal Saudi Arabia
| | - Steven P. Nolan
- Department of Chemistry and Center for Sustainable Chemistry Ghent University Ghent Belgium
| | - Albert Poater
- Institut de Química Computacional i Catàlisi, Departament de Química Universitat de Girona Girona Spain
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11
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Timmer BJJ, Kravchenko O, Liu T, Zhang B, Sun L. Off-Set Interactions of Ruthenium-bda Type Catalysts for Promoting Water-Splitting Performance. Angew Chem Int Ed Engl 2021; 60:14504-14511. [PMID: 33861495 PMCID: PMC8251529 DOI: 10.1002/anie.202101931] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Indexed: 12/31/2022]
Abstract
O-O bond formation with Ru(bda)L2 -type catalysts is well-known to proceed through a bimolecular reaction pathway, limiting the potential application of these catalysts at low concentrations. Herein, we achieved high efficiencies with mononuclear catalysts, with TOFs of 460±32 s-1 at high catalyst loading and 31±3 s-1 at only 1 μM catalyst concentration, by simple structural considerations on the axial ligands. Kinetic and DFT studies show that introduction of an off-set in the interaction between the two catalytic units reduces the kinetic barrier of the second-order O-O bond formation, maintaining high catalytic activity even at low catalyst concentrations. The results herein furthermore suggest that π-π interactions may only play a minor role in the observed catalytic activity, and that asymmetry can also rationalize high activity observed for Ru(bda)(isoq)2 type catalysts and offer inspiration to overcome the limitations of 2nd order catalysis.
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Affiliation(s)
- Brian J. J. Timmer
- Department of ChemistrySchool of Engineering Sciences in Chemistry, Biotechnology and HealthKTH Royal Institute of Technology10044StockholmSweden
| | - Oleksandr Kravchenko
- Department of ChemistrySchool of Engineering Sciences in Chemistry, Biotechnology and HealthKTH Royal Institute of Technology10044StockholmSweden
| | - Tianqi Liu
- Department of ChemistrySchool of Engineering Sciences in Chemistry, Biotechnology and HealthKTH Royal Institute of Technology10044StockholmSweden
| | - Biaobiao Zhang
- Department of ChemistrySchool of Engineering Sciences in Chemistry, Biotechnology and HealthKTH Royal Institute of Technology10044StockholmSweden
| | - Licheng Sun
- Department of ChemistrySchool of Engineering Sciences in Chemistry, Biotechnology and HealthKTH Royal Institute of Technology10044StockholmSweden
- State Key Laboratory of Fine ChemicalsInstitute of Artificial PhotosynthesisDUT-KTH Joint Education and Research Centre on Molecular DevicesDalian University of Technology116024DalianChina
- Center of Artificial Photosynthesis for Solar FuelsSchool of ScienceWestlake University310024HangzhouChina
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12
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Abstract
Poly (vinyl ethers) are compounds with great value in the coating industry due to exhibiting properties such as high viscosity, soft adhesiveness, resistance to saponification and solubility in water and organic solvents. However, the main challenge in this field is the synthesis of vinyl ether monomers that can be synthetized by methodologies such as vinyl transfer, reduction of vinyl phosphate ether, isomerization, hydrogenation of acetylenic ethers, elimination, addition of alcohols to alkyne species etc. Nevertheless, the most successful strategy to access to vinyl ether derivatives is the addition of alcohols to alkynes catalyzed by transition metals such as molybdenum, tungsten, ruthenium, palladium, platinum, gold, silver, iridium and rhodium, where gold-NHC catalysts have shown the best results in vinyl ether synthesis. Recently, the hydrophenoxylation reaction was found to proceed through a digold-assisted process where the species that determine the rate of the reaction are PhO-[Au(IPr)] and alkyne-[Au(IPr)]. Later, the improvement of the hydrophenoxylation reaction by using a mixed combination of Cu-NHC and Au-NHC catalysts was also reported. DFT studies confirmed a cost-effective method for the hydrophenoxylation reaction and located the rate-determining step, which turned out to be quite sensitive to the sterical hindrance due to the NHC ligands.
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13
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Timmer BJJ, Kravchenko O, Liu T, Zhang B, Sun L. Off‐Set Interactions of Ruthenium–bda Type Catalysts for Promoting Water‐Splitting Performance. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101931] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Brian J. J. Timmer
- Department of Chemistry School of Engineering Sciences in Chemistry, Biotechnology and Health KTH Royal Institute of Technology 10044 Stockholm Sweden
| | - Oleksandr Kravchenko
- Department of Chemistry School of Engineering Sciences in Chemistry, Biotechnology and Health KTH Royal Institute of Technology 10044 Stockholm Sweden
| | - Tianqi Liu
- Department of Chemistry School of Engineering Sciences in Chemistry, Biotechnology and Health KTH Royal Institute of Technology 10044 Stockholm Sweden
| | - Biaobiao Zhang
- Department of Chemistry School of Engineering Sciences in Chemistry, Biotechnology and Health KTH Royal Institute of Technology 10044 Stockholm Sweden
| | - Licheng Sun
- Department of Chemistry School of Engineering Sciences in Chemistry, Biotechnology and Health KTH Royal Institute of Technology 10044 Stockholm Sweden
- State Key Laboratory of Fine Chemicals Institute of Artificial Photosynthesis DUT-KTH Joint Education and Research Centre on Molecular Devices Dalian University of Technology 116024 Dalian China
- Center of Artificial Photosynthesis for Solar Fuels School of Science Westlake University 310024 Hangzhou China
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14
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Escayola S, Brotons-Rufes A, Bahri-Laleh N, Ragone F, Cavallo L, Solà M, Poater A. Fluxional bis(phenoxy-imine) Zr and Ti catalysts for polymerization. Theor Chem Acc 2021. [DOI: 10.1007/s00214-021-02747-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Farahmand S, Ghiaci M, Asghari S. Oxo-vanadium (IV) phthalocyanine implanted onto the modified SBA-15 as a catalyst for direct hydroxylation of benzene to phenol in acetonitrile-water medium: A kinetic study. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2020.116331] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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16
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Yi J, Zhan S, Chen L, Tian Q, Wang N, Li J, Xu W, Zhang B, Ahlquist MSG. Electrostatic Interactions Accelerating Water Oxidation Catalysis via Intercatalyst O-O Coupling. J Am Chem Soc 2021; 143:2484-2490. [PMID: 33538597 DOI: 10.1021/jacs.0c07103] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Intercatalyst coupling has been widely applied in the functional mimics for binuclear synergy in natural metal enzymes. Herein, we introduce two facile and effective design strategies, which facilitate the coupling of two catalytic units via electrostatic interactions. The first system is based on a catalyst molecule functionalized with both a positively charged and a negatively charged group in the structure being able to pair with each other in an antiparallel manner arranged by electrostatic interactions. The other system consists of a mixture of two different of catalysts modified with either positively or negatively charged groups to generate intermolecular electrostatic interactions. Applying these designs to Ru(bda) (H2bda = 2,2'-bipyridine-6,6'-dicarboxylic acid) water-oxidation catalysts improved the catalytic performance by more than an order of magnitude. The intermolecular electrostatic interactions in these two systems were fully identified by 1H NMR, TEM, SAXS, and electrical conductivity experiments. Molecular dynamics simulations further verified that electrostatic interactions contribute to the formation of prereactive dimers, which were found to play a key role in dramatically improving the catalytic performance. The successful strategies demonstrated here can be used in designing other intercatalyst coupling systems for activation and formation of small molecules and organic synthesis.
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Affiliation(s)
- Jiajia Yi
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry & Materials Science, Northwest University, 710069 Xi'an, China
| | - Shaoqi Zhan
- Department of Theoretical Chemistry & Biology, School of Engineering Sciences in Chemistry Biotechnology and Health, KTH Royal Institute of Technology, 10691 Stockholm, Sweden
| | - Lin Chen
- State Key Laboratory of Environment-Friendly Energy Material, School of Materials Science and Engineering, Southwest University of Science and Technology, 621010 Mianyang, China
| | - Qiang Tian
- State Key Laboratory of Environment-Friendly Energy Material, School of Materials Science and Engineering, Southwest University of Science and Technology, 621010 Mianyang, China
| | - Ning Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry & Materials Science, Northwest University, 710069 Xi'an, China
| | - Jun Li
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry & Materials Science, Northwest University, 710069 Xi'an, China
| | - Wenhua Xu
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education, College of Chemistry & Materials Science, Northwest University, 710069 Xi'an, China
| | - Biaobiao Zhang
- Department of Chemistry, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
| | - Mårten S G Ahlquist
- Department of Theoretical Chemistry & Biology, School of Engineering Sciences in Chemistry Biotechnology and Health, KTH Royal Institute of Technology, 10691 Stockholm, Sweden
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17
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Efficient hydro-finishing of polyalfaolefin based lubricants under mild reaction condition using Pd on ligands decorated halloysite. J Colloid Interface Sci 2021; 581:939-953. [DOI: 10.1016/j.jcis.2020.08.112] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 08/18/2020] [Accepted: 08/28/2020] [Indexed: 12/19/2022]
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18
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Group IV diamine bis(phenolate) catalysts for 1-decene oligomerization. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.111047] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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19
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Schilling M, Cunha RA, Luber S. Enhanced Ab Initio Molecular Dynamics Exploration Unveils the Complex Role of Different Intramolecular Bases on the Water Nucleophilic Attack Mechanism. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01422] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Mauro Schilling
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - Richard A. Cunha
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - Sandra Luber
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
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Meza-Chincha AL, Lindner JO, Schindler D, Schmidt D, Krause AM, Röhr MIS, Mitrić R, Würthner F. Impact of substituents on molecular properties and catalytic activities of trinuclear Ru macrocycles in water oxidation. Chem Sci 2020; 11:7654-7664. [PMID: 34094143 PMCID: PMC8159484 DOI: 10.1039/d0sc01097a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Herein we report a broad series of new trinuclear supramolecular Ru(bda) macrocycles bearing different substituents at the axial or equatorial ligands which enabled investigation of substituent effects on the catalytic activities in chemical and photocatalytic water oxidation. Our detailed investigations revealed that the activities of these functionalized macrocycles in water oxidation are significantly affected by the position at which the substituents were introduced. Interestingly, this effect could not be explained based on the redox properties of the catalysts since these are not markedly influenced by the functionalization of the ligands. Instead, detailed investigations by X-ray crystal structure analysis and theoretical simulations showed that conformational changes imparted by the substituents are responsible for the variation of catalytic activities of the Ru macrocycles. For the first time, macrocyclic structure of this class of water oxidation catalysts is unequivocally confirmed and experimental indication for a hydrogen-bonded water network present in the cavity of the macrocycles is provided by crystal structure analysis. We ascribe the high catalytic efficiency of our Ru(bda) macrocycles to cooperative proton abstractions facilitated by such a network of preorganized water molecules in their cavity, which is reminiscent of catalytic activities of enzymes at active sites. Conformational changes induced by ligand substituents in macrocyclic Ru complexes strongly affect their chemical and photocatalytic efficiencies in water oxidation.![]()
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Affiliation(s)
| | - Joachim O Lindner
- Universität Würzburg, Center for Nanosystems Chemistry (CNC) Theodor-Boveri-Weg 97074 Würzburg Germany
| | - Dorothee Schindler
- Universität Würzburg, Institut für Organische Chemie Am Hubland 97074 Würzburg Germany
| | - David Schmidt
- Universität Würzburg, Center for Nanosystems Chemistry (CNC) Theodor-Boveri-Weg 97074 Würzburg Germany
| | - Ana-Maria Krause
- Universität Würzburg, Center for Nanosystems Chemistry (CNC) Theodor-Boveri-Weg 97074 Würzburg Germany
| | - Merle I S Röhr
- Universität Würzburg, Center for Nanosystems Chemistry (CNC) Theodor-Boveri-Weg 97074 Würzburg Germany.,Universität Würzburg, Institut für Physikalische und Theoretische Chemie Emil-Fischer-Str. 42 97074 Würzburg Germany
| | - Roland Mitrić
- Universität Würzburg, Institut für Physikalische und Theoretische Chemie Emil-Fischer-Str. 42 97074 Würzburg Germany
| | - Frank Würthner
- Universität Würzburg, Institut für Organische Chemie Am Hubland 97074 Würzburg Germany .,Universität Würzburg, Center for Nanosystems Chemistry (CNC) Theodor-Boveri-Weg 97074 Würzburg Germany
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Ramos M, Poater J, Villegas‐Escobar N, Gimferrer M, Toro‐Labbé A, Cavallo L, Poater A. Phenoxylation of Alkynes through Mono‐ and Dual Activation Using Group 11 (Cu, Ag, Au) Catalysts. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901220] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Miguel Ramos
- Institut de Química Computacional i Catàlisi Departament de Química Universitat de Girona c/ Maria Aurèlia Capmany 69 17003 Girona Catalonia Spain
| | - Jordi Poater
- Departament de Química Inorgànica i Orgànica & IQTCUB Universitat de Barcelona Martí i Franquès 1–11 08028 Barcelona Spain
- ICREA Pg. Lluís Companys 23 08010 Barcelona Spain
| | - Nery Villegas‐Escobar
- Laboratorio de Química Teórica Computacional (QTC) Facultad de Química y de Farmacia Pontificia Universidad Católica de Chile Avenida Vicuña Mackenna 4860 7820436 Santiago Chile
| | - Martí Gimferrer
- Institut de Química Computacional i Catàlisi Departament de Química Universitat de Girona c/ Maria Aurèlia Capmany 69 17003 Girona Catalonia Spain
| | - Alejandro Toro‐Labbé
- Laboratorio de Química Teórica Computacional (QTC) Facultad de Química y de Farmacia Pontificia Universidad Católica de Chile Avenida Vicuña Mackenna 4860 7820436 Santiago Chile
| | - Luigi Cavallo
- King Abdullah University of Science & Technology KAUST Catalysis Center (KCC) 23955–6900 Thuwal Saudi Arabia
| | - Albert Poater
- Institut de Química Computacional i Catàlisi Departament de Química Universitat de Girona c/ Maria Aurèlia Capmany 69 17003 Girona Catalonia Spain
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