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Yamauchi Y, Mondori Y, Uetake Y, Takeichi Y, Kawakita T, Sakurai H, Ogoshi S, Hoshimoto Y. Reversible Modulation of the Electronic and Spatial Environment around Ni(0) Centers Bearing Multifunctional Carbene Ligands with Triarylaluminum. J Am Chem Soc 2023. [PMID: 37467307 PMCID: PMC10401715 DOI: 10.1021/jacs.3c06267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2023]
Abstract
Designing and modulating the electronic and spatial environments surrounding metal centers is a crucial issue in a wide range of chemistry fields that use organometallic compounds. Herein, we demonstrate a Lewis-acid-mediated reversible expansion, contraction, and transformation of the spatial environment surrounding nickel(0) centers that bear N-phosphine oxide-substituted N-heterocyclic carbenes (henceforth referred to as (S)PoxIms). Reaction between tetrahedral (syn-κ-C,O-(S)PoxIm)Ni(CO)2 and Al(C6F5)3 smoothly afforded heterobimetallic Ni/Al species such as trigonal-planar {κ-C-Ni(CO)2}(μ-anti-(S)PoxIm){κ-O-Al(C6F5)3} via a complexation-induced rotation of the N-phosphine oxide moieties, while the addition of 4-dimethylaminopyridine resulted in the quantitative regeneration of the former Ni complexes. The corresponding interconversion also occurred between (SPoxIm)Ni(η2:η2-diphenyldivinylsilane) and {κ-C-Ni(η2:η2-diene)}(μ-anti-SPoxIm){κ-O-Al(C6F5)3} via the coordination and dissociation of Al(C6F5)3. The shape and size of the space around the Ni(0) center was drastically changed through this Lewis-acid-mediated interconversion. Moreover, the multinuclear NMR, IR, and XAS analyses of the aforementioned carbonyl complexes clarified the details of the changes in the electronic states on the Ni centers; i.e., the electron delocalization was effectively enhanced among the Ni atom and CO ligands in the heterobimetallic Ni/Al species. The results presented in this work thus provide a strategy for reversibly modulating both the electronic and spatial environment of organometallic complexes, in addition to the well-accepted Lewis-base-mediated ligand-substitution methods.
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Affiliation(s)
- Yasuhiro Yamauchi
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yutaka Mondori
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yuta Uetake
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
| | - Yasuo Takeichi
- Department of Applied Physics, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Takahiro Kawakita
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Hidehiro Sakurai
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
| | - Sensuke Ogoshi
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Yoichi Hoshimoto
- Department of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
- Center for Future Innovation (CFi), Division of Applied Chemistry, Faculty of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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2
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Wei W, Xu X, Sung HHY, Williams ID, Lin Z, Jia G. Dewar Metallabenzenes from Reactions of Metallacyclobutadienes with Alkynes. Angew Chem Int Ed Engl 2022; 61:e202202886. [DOI: 10.1002/anie.202202886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Wei Wei
- Department of Chemistry Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
| | - Xin Xu
- Department of Chemistry Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
| | - Herman H. Y. Sung
- Department of Chemistry Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
| | - Ian D. Williams
- Department of Chemistry Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
| | - Zhenyang Lin
- Department of Chemistry Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
| | - Guochen Jia
- Department of Chemistry Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
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3
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Wei W, Xu X, Sung HHY, Williams ID, Lin Z, Jia G. Dewar Metallabenzenes from Reactions of Metallacyclobutadienes with Alkynes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202886] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Wei Wei
- Department of Chemistry Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
| | - Xin Xu
- Department of Chemistry Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
| | - Herman H. Y. Sung
- Department of Chemistry Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
| | - Ian D. Williams
- Department of Chemistry Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
| | - Zhenyang Lin
- Department of Chemistry Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
| | - Guochen Jia
- Department of Chemistry Hong Kong University of Science and Technology Clear Water Bay, Kowloon Hong Kong China
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4
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Wei W, Xu X, Lee KH, Lin R, Sung HHY, Williams ID, Lin Z, Jia G. Reactions of Rhenacyclobutadiene Complexes with Allenes. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00493] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wei Wei
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 0000, People’s Republic of China
| | - Xin Xu
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 0000, People’s Republic of China
| | - Ka-Ho Lee
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 0000, People’s Republic of China
| | - Ran Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 0000, People’s Republic of China
| | - Herman H. Y. Sung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 0000, People’s Republic of China
| | - Ian D. Williams
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 0000, People’s Republic of China
| | - Zhenyang Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 0000, People’s Republic of China
| | - Guochen Jia
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 0000, People’s Republic of China
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5
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Kiernicki JJ, Norwine EE, Zeller M, Szymczak NK. Substrate Specific Metal-Ligand Cooperative Binding: Considerations for Weak Intramolecular Lewis Acid/Base Pairs. Inorg Chem 2021; 60:13806-13810. [PMID: 34242009 DOI: 10.1021/acs.inorgchem.1c01382] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Metal-ligand cooperative binding modes were interrogated in a series of zinc bis(thiophenoxide) complexes. A weak B-S binding interaction is observed in solution between the weakly Lewis basic thiophenoxide ligands and an appended trialkylborane. The energy of this binding event is dependent upon the strength of the Lewis acid and its proximity to the zinc thiophenoxide.
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Affiliation(s)
- John J Kiernicki
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Emily E Norwine
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | - Matthias Zeller
- H. C. Brown Laboratory, Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Nathaniel K Szymczak
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
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7
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Shimoyama Y, Kitagawa Y, Ohgomori Y, Kon Y, Hong D. Formate-driven catalysis and mechanism of an iridium-copper complex for selective aerobic oxidation of aromatic olefins in water. Chem Sci 2021; 12:5796-5803. [PMID: 34168803 PMCID: PMC8179673 DOI: 10.1039/d0sc06634f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 03/15/2021] [Indexed: 11/21/2022] Open
Abstract
A hetero-dinuclear IrIII-CuII complex with two adjacent sites was employed as a catalyst for the aerobic oxidation of aromatic olefins driven by formate in water. An IrIII-H intermediate, generated through formate dehydrogenation, was revealed to activate terminal aromatic olefins to afford an Ir-alkyl species, and the process was promoted by a hydrophobic [IrIII-H]-[substrate aromatic ring] interaction in water. The Ir-alkyl species subsequently reacted with dioxygen to yield corresponding methyl ketones and was promoted by the presence of the CuII moiety under acidic conditions. The IrIII-CuII complex exhibited cooperative catalysis in the selective aerobic oxidation of olefins to corresponding methyl ketones, as evidenced by no reactivities observed from the corresponding mononuclear IrIII and CuII complexes, as the individual components of the IrIII-CuII complex. The reaction mechanism afforded by the IrIII-CuII complex in the aerobic oxidation was disclosed by a combination of spectroscopic detection of reaction intermediates, kinetic analysis, and theoretical calculations.
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Affiliation(s)
- Yoshihiro Shimoyama
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Higashi Tsukuba Ibaraki 305-8565 Japan
| | - Yasutaka Kitagawa
- Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University 1-3 Machikaneyama-cho Toyonaka Osaka 560-8531 Japan
| | - Yuji Ohgomori
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Higashi Tsukuba Ibaraki 305-8565 Japan
| | - Yoshihiro Kon
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Higashi Tsukuba Ibaraki 305-8565 Japan
- Global Zero Emission Research Center, National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Higashi Tsukuba Ibaraki 305-8565 Japan
| | - Dachao Hong
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Higashi Tsukuba Ibaraki 305-8565 Japan
- Global Zero Emission Research Center, National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Higashi Tsukuba Ibaraki 305-8565 Japan
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8
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Affiliation(s)
- James P. Shanahan
- Department of Chemistry, University of Michigan, 930 N. University, Ann Arbor, Michigan 48109, United States
| | - Nathaniel K. Szymczak
- Department of Chemistry, University of Michigan, 930 N. University, Ann Arbor, Michigan 48109, United States
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Zwettler N, Dupé A, Klokić S, Milinković A, Rodić D, Walg S, Neshchadin D, Belaj F, Mösch‐Zanetti NC. Hydroalkylation of Aryl Alkenes with Organohalides Catalyzed by Molybdenum Oxido Based Lewis Pairs. Adv Synth Catal 2020; 362:3170-3182. [PMID: 32982624 PMCID: PMC7497237 DOI: 10.1002/adsc.202000425] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 06/09/2020] [Indexed: 11/08/2022]
Abstract
Three molybdenum(VI) dioxido complexes [MoO2(L)2] bearing Schiff base ligands were reacted with B(C6F5)3 to afford the corresponding adducts [MoO{OB(C6F5)3}(L)2], which were fully characterized. They exhibit Frustrated Lewis-Pairs reactivity when reacting with silanes. Especially, the [MoO{OB(C6F5)3}(L)2] complex with L=2,4-dimethyl-6-((phenylimino)methyl)phenol proved to be active as catalyst for the hydroalkylation of aryl alkenes with organohalides and for the Atom-Transfer Radical Addition (ATRA) of organohalides to aliphatic alkenes. A series of gem-dichloride and gem-dibromide compounds with potential for further derivatization were synthesized from simple alkenes and organohalides, like chloroform or bromoform, using low catalyst loading.
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Affiliation(s)
- Niklas Zwettler
- Institute of ChemistryUniversity of GrazSchubertstrasse 18010GrazAustria
| | - Antoine Dupé
- Institute of ChemistryUniversity of GrazSchubertstrasse 18010GrazAustria
| | - Sumea Klokić
- Institute of ChemistryUniversity of GrazSchubertstrasse 18010GrazAustria
| | - Angela Milinković
- Institute of ChemistryUniversity of GrazSchubertstrasse 18010GrazAustria
| | - Dado Rodić
- Institute of ChemistryUniversity of GrazSchubertstrasse 18010GrazAustria
| | - Simon Walg
- Institute of ChemistryUniversity of GrazSchubertstrasse 18010GrazAustria
| | - Dmytro Neshchadin
- Institute for Physical and Theoretical ChemistryGraz University of TechnologyStremayrgasse 98010GrazAustria
| | - Ferdinand Belaj
- Institute of ChemistryUniversity of GrazSchubertstrasse 18010GrazAustria
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10
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Mandal T, Singh V, Choudhury J. Coordination Booster-Catalyst Assembly: Remote Osmium Outperforming Ruthenium in Boosting Catalytic Activity. Chem Asian J 2019; 14:4774-4779. [PMID: 31560812 DOI: 10.1002/asia.201901215] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 09/26/2019] [Indexed: 12/15/2022]
Abstract
Presented herein is a set of bimetallic and trimetallic "coordination booster-catalyst" assemblies in which the coordination complexes [RuII (terpy)2 ] and [OsII (terpy)2 ] acted as boosters for enhancement of the catalytic activity of [RuII (NHC)(para-cymene)]-based catalytic site. The boosters accelerated the oxidative loss of para-cymene from the catalytic site to generate the active catalyst during the oxidation of alkenes and alkynes into corresponding aldehydes, ketones and diketones. It was found that the boosting efficiency of the [OsII (terpy)2 ] units was considerably higher than its congener [RuII (terpy)2 ] unit in these assemblies. Mechanistic studies were conducted to understand this unique improvement.
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Affiliation(s)
- Tanmoy Mandal
- Organometallics & Smart Materials Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, 462 066, India
| | - Vivek Singh
- Organometallics & Smart Materials Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, 462 066, India
| | - Joyanta Choudhury
- Organometallics & Smart Materials Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, 462 066, India
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11
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Zwettler N, Mösch-Zanetti NC. Interaction of Metal Oxido Compounds with B(C 6 F 5 ) 3. Chemistry 2019; 25:6064-6076. [PMID: 30707470 DOI: 10.1002/chem.201805148] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Indexed: 11/07/2022]
Abstract
Lewis acid-base pair chemistry has been placed on a new level with the discovery that adduct formation between an electron donor (Lewis base) and acceptor (Lewis acid) can be inhibited by the introduction of steric demand, thus preserving the reactivity of both Lewis centers, resulting in highly unusual chemistry. Some of these highly versatile frustrated Lewis pairs (FLP) are capable of splitting a variety of small molecules, such as dihydrogen, in a heterolytic and even catalytic manner. This is in sharp contrast to classical reactions where the inert substrate must be activated by a metal-based catalyst. Very recently, research has emerged combining the two concepts, namely the formation of FLPs in which a metal compound represents the Lewis base, allowing for novel chemistry by using the heterolytic splitting power of both together with the redox reactivity of the metal. Such reactivity is not restricted to the metal center itself being a Lewis acid or base, also ancillary ligands can be used as part of the Lewis pair, still with the benefit of the redox-active metal center nearby. This Minireview is designed to highlight the novel reactions arising from the combination of metal oxido transition-metal or rare-earth-metal compounds with the Lewis acid B(C6 F5 )3 . It covers a wide area of chemistry including small molecule activation, hydrogenation and hydrosilylation catalysis, and olefin metathesis, substantiating the broad influence of the novel concept. Future goals of this young and exciting area are briefly discussed.
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Affiliation(s)
- Niklas Zwettler
- Institute of Chemistry/Inorganic Chemistry, University of Graz, Schubertstrasse 1, 8010, Graz, Austria
| | - Nadia C Mösch-Zanetti
- Institute of Chemistry/Inorganic Chemistry, University of Graz, Schubertstrasse 1, 8010, Graz, Austria
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12
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Zwettler N, Walg SP, Belaj F, Mösch‐Zanetti NC. Heterolytic Si-H Bond Cleavage at a Molybdenum-Oxido-Based Lewis Pair. Chemistry 2018; 24:7149-7160. [PMID: 29521459 PMCID: PMC6001527 DOI: 10.1002/chem.201800226] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Indexed: 12/15/2022]
Abstract
The reaction of a molybdenum(VI) oxido imido complex with the strong Lewis acid B(C6 F5 )3 gave access to the Lewis adduct [Mo{OB(C6 F5 )3 }(NtBu)L2 ] featuring reversible B-O bonding in solution. The resulting frustrated Lewis pair (FLP)-like reactivity is reflected by the compound's ability to heterolytically cleave Si-H bonds, leading to a clean formation of the novel cationic MoVI species 3 a (R=Et) and 3 b (R=Ph) of the general formula [Mo(OSiR3 )(NtBu)L2 ][HB(C6 F5 )3 ]. These compounds possess properties highly unusual for molybdenum d0 species such as an intensive, charge-transfer-based color as well as a reversible redox couple at very low potentials, both dependent on the silane used. Single-crystal X-ray diffraction analyses of 2 and 4 b, a derivative of 3 b featuring the [FB(C6 F5 )3 ]- anion, picture the stepwise elongation of the Mo=O bond, leading to a large increase in the electrophilicity of the metal center. The reaction of 3 a and 3 b with benzaldehyde allowed for the regeneration of compound 2 by hydrosilylation of the benzaldehyde. NMR spectroscopy suggested an unusual mechanism for the transformation, involving a substrate insertion in the B-H bond of the borohydride anion.
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Affiliation(s)
- Niklas Zwettler
- Institute of Chemistry, Inorganic ChemistryUniversity of GrazSchubertstrasse 18010GrazAustria
| | - Simon P. Walg
- Institute of Chemistry, Inorganic ChemistryUniversity of GrazSchubertstrasse 18010GrazAustria
| | - Ferdinand Belaj
- Institute of Chemistry, Inorganic ChemistryUniversity of GrazSchubertstrasse 18010GrazAustria
| | - Nadia C. Mösch‐Zanetti
- Institute of Chemistry, Inorganic ChemistryUniversity of GrazSchubertstrasse 18010GrazAustria
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13
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Affiliation(s)
- Lillian V. A. Hale
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Nathaniel K. Szymczak
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109, United States
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Wickramasinghe LA, Ogawa T, Schrock RR, Müller P. Reduction of Dinitrogen to Ammonia Catalyzed by Molybdenum Diamido Complexes. J Am Chem Soc 2017. [DOI: 10.1021/jacs.7b04800] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Lasantha A. Wickramasinghe
- Department of Chemistry 6-331, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Takaya Ogawa
- Department of Chemistry 6-331, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Richard R. Schrock
- Department of Chemistry 6-331, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Peter Müller
- Department of Chemistry 6-331, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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