1
|
Kawabuchi Y, Suzuki T, Wada Y, Sunada Y. Reductive Retrocyclization of a Mangana(II)cyclopentasilane to Form Manganese(0) Bis(η 2-disilene) Complexes. Angew Chem Int Ed Engl 2024; 63:e202319804. [PMID: 38329155 DOI: 10.1002/anie.202319804] [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: 12/21/2023] [Revised: 02/07/2024] [Accepted: 02/07/2024] [Indexed: 02/09/2024]
Abstract
Ligand-exchange reactions on a mangana(II)cyclopentasilane complex that contains two THF ligands with aryl isocyanides led to the formation of manganese(0) bis(η2-disilene) complexes via a retrocyclization. In stark contrast, ligand-exchange reactions with CNtBu, an N-heterocyclic carbene, or pyridine-based ligands furnished manganese(II) complexes wherein the manganacyclopentasilane framework remained intact. The thermolysis of the obtained bis(η2-disilene) complex in the presence of mesityl isocyanide led to the formation of a cyclotetrasilane via the formal dimerization of the two η2-disilene moieties. The insertion of a mesityl isocyanide into the Mn-Siβ bond results in the formation of a manganese(II) complex supported by a [SiCSi]-type tridentate ligand scaffold.
Collapse
Affiliation(s)
- Yosuke Kawabuchi
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan
| | - Takuma Suzuki
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan
| | - Yoshimasa Wada
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan
| | - Yusuke Sunada
- Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, Japan
- JST PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama, Japan
| |
Collapse
|
2
|
Dixit VA, Kulkarni A. Applications of Bond Energy‐Based Thermodynamic Analysis to the Feasibility of Unfunctionalized C−C Cross‐Coupling Reactions. ChemistrySelect 2022. [DOI: 10.1002/slct.202203111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Vaibhav A. Dixit
- Department of Medicinal Chemistry National Institute of Pharmaceutical Education and Research Guwahati NIPER Guwahati) Department of Pharmaceuticals Ministry of Chemicals & Fertilizers, Govt. of India, Sila Katamur (Halu-gurisuk) Changsari Kamrup 781101 Guwahati Assam India
| | - Aniket Kulkarni
- Department of Pharmacy Birla Institute of Technology and Sciences Pilani (BITS Pilani) Vidya Vihar Campus, 41 Pilani 333031 Rajasthan India
| |
Collapse
|
3
|
Petit J, Magna L, Mézailles N. Alkene oligomerization via metallacycles: Recent advances and mechanistic insights. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214227] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
4
|
Natarajan P, Chuskit D, Priya P. Readily available alkylbenzenes as precursors for one-pot preparation of buta-1,3-dienes under DDQ visible-light photocatalysis in benzotrifluoride. Org Chem Front 2022. [DOI: 10.1039/d1qo01869h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Easily accessible alkylbenzenes are highly valuable starting materials and solvents in synthetic organic chemistry for production of pharmaceuticals, plastics, synthetic rubber, dyes, etc. Herein, by employing alkylbenzenes as precursors, an...
Collapse
|
5
|
Khivantsev K, Vityuk A, Aleksandrov HA, Vayssilov GN, Alexeev OS, Amiridis MD. Catalytic conversion of ethene to butadiene or hydrogenation to ethane on HY zeolite-supported rhodium complexes: Cooperative support/Rh-center route. J Chem Phys 2021; 154:184706. [PMID: 34241012 DOI: 10.1063/5.0042322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Rh(C2H4)2 species grafted on the HY zeolite framework significantly enhance the activation of H2 that reacts with C2H4 ligands to form C2H6. While in this case, the simultaneous activation of C2H4 and H2 and the reaction between these species on zeolite-loaded Rh cations is a legitimate hydrogenation pathway yielding C2H6, the results obtained for Rh(CO)(C2H4)/HY materials exposed to H2 convincingly show that the support-assisted C2H4 hydrogenation pathway also exists. This additional and previously unrecognized hydrogenation pathway couples with the conversion of C2H4 ligands on Rh sites and contributes significantly to the overall hydrogenation activity. This pathway does not require simultaneous activation of reactants on the same metal center and, therefore, is mechanistically different from hydrogenation chemistry exhibited by molecular organometallic complexes. We also demonstrate that the conversion of zeolite-supported Rh(CO)2 complexes into Rh(CO)(C2H4) species under ambient conditions is not a simple CO/C2H4 ligand exchange reaction on Rh sites, as this process also involves the conversion of C2H4 into C4 hydrocarbons, among which 1,3-butadiene is the main product formed with the initial selectivity exceeding 98% and the turnover frequency of 8.9 × 10-3 s-1. Thus, the primary role of zeolite-supported Rh species is not limited to the activation of H2, as these species significantly accelerate the formation of the C4 hydrocarbons from C2H4 even without the presence of H2 in the feed. Using periodic density functional theory calculations, we examined several catalytic pathways that can lead to the conversion of C2H4 into 1,3-butadiene over these materials and identified the reaction route via intermediate formation of rhodacyclopentane.
Collapse
Affiliation(s)
- Konstantin Khivantsev
- Department of Chemical Engineering, University of South Carolina, Columbia, South Carolina 29208, USA
| | - Artem Vityuk
- Department of Chemical Engineering, University of South Carolina, Columbia, South Carolina 29208, USA
| | - Hristiyan A Aleksandrov
- Faculty of Chemistry and Pharmacy, University of Sofia, Blvd. J. Bauchier 1, BG-1126 Sofia, Bulgaria
| | - Georgi N Vayssilov
- Faculty of Chemistry and Pharmacy, University of Sofia, Blvd. J. Bauchier 1, BG-1126 Sofia, Bulgaria
| | - Oleg S Alexeev
- Department of Chemical Engineering, University of South Carolina, Columbia, South Carolina 29208, USA
| | - Michael D Amiridis
- Department of Chemical Engineering, University of South Carolina, Columbia, South Carolina 29208, USA
| |
Collapse
|
6
|
Khivantsev K, Vargas CG, Tian J, Kovarik L, Jaegers NR, Szanyi J, Wang Y. Economizing on Precious Metals in Three-Way Catalysts: Thermally Stable and Highly Active Single-Atom Rhodium on Ceria for NO Abatement under Dry and Industrially Relevant Conditions*. Angew Chem Int Ed Engl 2021; 60:391-398. [PMID: 32881353 DOI: 10.1002/anie.202010815] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Indexed: 01/16/2023]
Abstract
We show for the first time that atomically dispersed Rh cations on ceria, prepared by a high-temperature atom-trapping synthesis, are the active species for the (CO+NO) reaction. This provides a direct link with the organometallic homogeneous RhI complexes capable of catalyzing the dry (CO+NO) reaction. The thermally stable Rh cations in 0.1 wt % Rh1 /CeO2 achieve full NO conversion with a turn-over-frequency (TOF) of around 330 h-1 per Rh atom at 120 °C. Under dry conditions, the main product above 100 °C is N2 with N2 O being the minor product. The presence of water promotes low-temperature activity of 0.1 wt % Rh1 /CeO2 . In the wet stream, ammonia and nitrogen are the main products above 120 °C. The uniformity of Rh ions on the support, allows us to detect the intermediates of (CO+NO) reaction via IR measurements on Rh cations on zeolite and ceria. We also show that NH3 formation correlates with the water gas shift (WGS) activity of the material and detect the formation of Rh hydride species spectroscopically.
Collapse
Affiliation(s)
- Konstantin Khivantsev
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99352, USA
| | - Carlos Garcia Vargas
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99352, USA.,Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, 99163, USA
| | - Jinshu Tian
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99352, USA
| | - Libor Kovarik
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99352, USA
| | - Nicholas R Jaegers
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99352, USA.,Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, 99163, USA
| | - Janos Szanyi
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99352, USA
| | - Yong Wang
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA, 99352, USA.,Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, WA, 99163, USA
| |
Collapse
|
7
|
Cui X, van Muyden AP, Dyson PJ. Utility of Core-Shell Nanomaterials in the Catalytic Transformations of Renewable Substrates. Chemistry 2021; 27:12-19. [PMID: 33107649 DOI: 10.1002/chem.202002597] [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: 05/27/2020] [Revised: 06/29/2020] [Indexed: 11/09/2022]
Abstract
In recent years, core-shell nano-catalysts have received increasing attention due to their tunable properties and broad applications in catalysis. Control of the two components of these materials allows their catalytic properties to be tuned to various sustainable processes in synthetic and energy-related applications. This Concept article describes recent state-of-the-art core-shell materials and their application as heterogeneous catalysts for a range of sustainable catalytic transformations, focusing on two important classes of renewable substrates, CO2 and biomass. In the discussion, emphasis is directed to the role of the constituent parts of the core-shell structure and how they can be manipulated to enhance activity.
Collapse
Affiliation(s)
- Xinjiang Cui
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, No.18, Tianshui Middle Road, Lanzhou, 730000, P. R. China
| | - Antoine P van Muyden
- Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL), 1015, Lausanne, Switzerland
| | - Paul J Dyson
- Institute of Chemical Sciences and Engineering, École Polytechnique Fedérale de Lausanne (EPFL), 1015, Lausanne, Switzerland
| |
Collapse
|
8
|
Khivantsev K, Vargas CG, Tian J, Kovarik L, Jaegers NR, Szanyi J, Wang Y. Economizing on Precious Metals in Three‐Way Catalysts: Thermally Stable and Highly Active Single‐Atom Rhodium on Ceria for NO Abatement under Dry and Industrially Relevant Conditions**. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010815] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Konstantin Khivantsev
- Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99352 USA
| | - Carlos Garcia Vargas
- Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99352 USA
- Voiland School of Chemical Engineering and Bioengineering Washington State University Pullman WA 99163 USA
| | - Jinshu Tian
- Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99352 USA
| | - Libor Kovarik
- Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99352 USA
| | - Nicholas R. Jaegers
- Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99352 USA
- Voiland School of Chemical Engineering and Bioengineering Washington State University Pullman WA 99163 USA
| | - Janos Szanyi
- Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99352 USA
| | - Yong Wang
- Institute for Integrated Catalysis Pacific Northwest National Laboratory Richland WA 99352 USA
- Voiland School of Chemical Engineering and Bioengineering Washington State University Pullman WA 99163 USA
| |
Collapse
|
9
|
Recent advances in the chemistry of group 9—Pincer organometallics. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2020. [DOI: 10.1016/bs.adomc.2019.09.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
10
|
Zhuo Q, Zhang H, Ding L, Lin J, Zhou X, Hua Y, Zhu J, Xia H. Rhodapentalenes: Pincer Complexes with Internal Aromaticity. iScience 2019; 19:1214-1224. [PMID: 31551198 PMCID: PMC6831826 DOI: 10.1016/j.isci.2019.08.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 08/08/2019] [Accepted: 08/16/2019] [Indexed: 11/15/2022] Open
Abstract
Pincer complexes are a remarkably versatile family benefited from their stability, diversity, and tunability. Many of them contain aromatic organic rings at the periphery, and aromaticity plays an important role in their stability and properties, whereas their metallacyclic cores are not aromatic. Herein, we report rhodapentalenes, which can be viewed as pincer complexes in which the metallacyclic cores exhibit considerable aromatic character. Rhodapentalenes show good thermal stability, although the rhodium-carbon bonds in such compounds are fragile. Experimental and computational studies suggest that the stabilization of rigid CCC pincer architectures together with an intrinsic aromaticity is vital for these metallacyclic rhodium species. Dearomatization-aromatization reactions, corresponding to metal-ligand cooperation of classical aromatic pincer complexes, were observed in this system. These findings suggest a new concept for pincer chemistry, the internal aromaticity involving metal d-orbitals, which would be useful for exploiting the nature of construction motif and inspire further applications. A concept for pincer chemistry: internal aromaticity involving metal d-orbitals Stable cyclic rhodium complexes with obvious rhodium carbene character Dual stabilization of rigid CCC pincer architectures and intrinsic aromaticity Rhodium-containing aromatics with a single metal entity
Collapse
Affiliation(s)
- Qingde Zhuo
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Hong Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Linting Ding
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jianfeng Lin
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xiaoxi Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Yuhui Hua
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jun Zhu
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Haiping Xia
- State Key Laboratory of Physical Chemistry of Solid Surfaces and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; Department of Chemistry, Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen 518055, China.
| |
Collapse
|
11
|
Jaegers NR, Khivantsev K, Kovarik L, Klas DW, Hu JZ, Wang Y, Szanyi J. Catalytic activation of ethylene C–H bonds on uniform d8 Ir(i) and Ni(ii) cations in zeolites: toward molecular level understanding of ethylene polymerization on heterogeneous catalysts. Catal Sci Technol 2019. [DOI: 10.1039/c9cy01442j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The long-debated intermediates of ethylene polymerization are revealed using uniform d8 metal ions in zeolites.
Collapse
Affiliation(s)
- Nicholas R. Jaegers
- Institute for Integrated Catalysis
- Pacific Northwest National Laboratory
- Richland
- USA
- Voiland School of Chemical Engineering and Bioengineering
| | | | - Libor Kovarik
- Institute for Integrated Catalysis
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Daniel W. Klas
- Institute for Integrated Catalysis
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Jian Zhi Hu
- Institute for Integrated Catalysis
- Pacific Northwest National Laboratory
- Richland
- USA
| | - Yong Wang
- Institute for Integrated Catalysis
- Pacific Northwest National Laboratory
- Richland
- USA
- Voiland School of Chemical Engineering and Bioengineering
| | - János Szanyi
- Institute for Integrated Catalysis
- Pacific Northwest National Laboratory
- Richland
- USA
| |
Collapse
|
12
|
Chuskit D, Chaudhary R, Venugopalan P, König B, Natarajan P. Oxidative homodimerization of substituted olefins by DDQ visible light photocatalysis. Org Chem Front 2018. [DOI: 10.1039/c8qo00792f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A metal-free approach for the synthesis of buta-1,3-dienes from olefins using visible-light and catalytic amounts of DDQ is disclosed.
Collapse
Affiliation(s)
- Deachen Chuskit
- Department of Chemistry & Centre for Advanced Studies in Chemistry
- Panjab University
- Chandigarh-160 014
- India
| | - Renu Chaudhary
- Department of Chemistry & Centre for Advanced Studies in Chemistry
- Panjab University
- Chandigarh-160 014
- India
| | - Paloth Venugopalan
- Department of Chemistry & Centre for Advanced Studies in Chemistry
- Panjab University
- Chandigarh-160 014
- India
| | - Burkhard König
- Fakultat fur Chemie und Pharmazie
- Universitat Regensburg
- 93040 Regensburg
- Germany
| | - Palani Natarajan
- Department of Chemistry & Centre for Advanced Studies in Chemistry
- Panjab University
- Chandigarh-160 014
- India
| |
Collapse
|