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Marlier EE. Kappa what? Insights into the coordination modes of N 2P 2 ligands. Dalton Trans 2024; 53:1410-1420. [PMID: 38086708 DOI: 10.1039/d3dt02831c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
While first synthesized more than three decades ago, complexes supported by N2P2 ligands have seen renewed interest due to the synthesis of new ligands, expansion of their reactivity, and catalytic applications. Possessing both soft phosphines and hard nitrogen donors, N2P2 ligands can accommodate various metal geometries and coordination modes thanks to their capability to act as bidentate, tridentate or tetradentate ligands. This short review will explore how metals bind to these ligands and also highlight the complexes' reactivity and catalytic abilities.
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Affiliation(s)
- Elodie E Marlier
- Department of Chemistry, Saint Olaf College, 1520 St Olaf Avenue, Northfield, Minnesota, 55057, USA.
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Zhang H, Shimoyama Y, Nakajima Y. Ester hydrogenolysis via β-C-O bond cleavage catalysed by a phenanthroline-based PNNP-cobalt(I) complex. Chem Commun (Camb) 2024; 60:823-826. [PMID: 38116606 DOI: 10.1039/d3cc05354g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
A Co(I) catalyst bearing a phenanthroline-based PNNP ligand (2,9-bis((diphenylphosphanyl)methyl)-1,10-phenanthroline) exhibits long-range metal ligand cooperation behavior using a ligand backbone as a hydrogen reservoir and catalyses hydrogenolysis of benzyl benzoate derivatives via β-C-O cleavage with atmospheric pressure H2.
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Affiliation(s)
- Heng Zhang
- School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan.
| | - 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
| | - Yumiko Nakajima
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
- School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan.
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Jheng NY, Ishizaka Y, Naganawa Y, Minami Y, Sekiguchi A, Iizuka K, Nakajima Y. Radical Hydrodehalogenation of Aryl Halides with H2 Catalyzed by a Phenanthroline-Based PNNP Cobalt(I) Complex. ACS Catal 2022. [DOI: 10.1021/acscatal.1c04797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Nai-Yuan Jheng
- Interdisciplinary Research Center for Catalytic Chemistry (IRC3), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
- Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8577, Japan
| | - Yusuke Ishizaka
- Interdisciplinary Research Center for Catalytic Chemistry (IRC3), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
- Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8577, Japan
| | - Yuki Naganawa
- Interdisciplinary Research Center for Catalytic Chemistry (IRC3), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Yasunori Minami
- Interdisciplinary Research Center for Catalytic Chemistry (IRC3), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Akira Sekiguchi
- Interdisciplinary Research Center for Catalytic Chemistry (IRC3), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Kosuke Iizuka
- Interdisciplinary Research Center for Catalytic Chemistry (IRC3), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Yumiko Nakajima
- Interdisciplinary Research Center for Catalytic Chemistry (IRC3), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
- Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8577, Japan
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Gautam M, Tanaka S, Sekiguchi A, Nakajima Y. Long-Range Metal–Ligand Cooperation by Iron Hydride Complexes Bearing a Phenanthroline-Based Tetradentate PNNP Ligand. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00507] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Monika Gautam
- Interdisciplinary Research Center for Catalytic Chemistry (IRC3), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai,Tsukuba, Ibaraki 305-8577, Japan
| | - Shinji Tanaka
- Interdisciplinary Research Center for Catalytic Chemistry (IRC3), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Akira Sekiguchi
- Interdisciplinary Research Center for Catalytic Chemistry (IRC3), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Yumiko Nakajima
- Interdisciplinary Research Center for Catalytic Chemistry (IRC3), National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai,Tsukuba, Ibaraki 305-8577, Japan
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Nakajima Y, Takeshita T, Jheng NY. Metal-ligand cooperation behaviour of Fe and Co complexes bearing a tetradentate phenanthroline-based PNNP ligand. Dalton Trans 2021; 50:7532-7536. [PMID: 34100488 DOI: 10.1039/d1dt00476j] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This perspective article describes the synthesis of a series of Fe and Co complexes coordinated with a phenanthroline-based meridional PNNP ligand (2,9-bis((diphenylphosphino)methyl)-1,10-phenanthroline). PNNP-iron(ii) dichloride and -cobalt(i) chloride, [FeCl2(PNNP)] and [CoCl(PNNP)], underwent abstraction of the benzylic H-atom upon treatment with NaOtBu, forming the corresponding deprotonated products [FeCl(PNNP')] (1) and [Co(PNNP')] (2), respectively, each of which bears an asymmetrical PNNP' ligand with a dearomatized phenanthroline backbone as a good metal-ligand cooperation (MLC) scaffold. Complex 2 achieved facile H-H bond cleavage mediated by unique long-range MLC, where the PNNP backbone acts as a H-atom reservoir.
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Affiliation(s)
- Yumiko Nakajima
- Interdisciplinary Research Center for Catalytic Chemistry (IRC3), National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan. and Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8577, Japan
| | - Tomohiro Takeshita
- Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8577, Japan
| | - Nai-Yuan Jheng
- Interdisciplinary Research Center for Catalytic Chemistry (IRC3), National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan. and Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8577, Japan
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