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Al‐Azzani MA, Al‐Mjeni F, Mitsuhashi R, Mikuriya M, Al‐Omari IA, Robertson CC, Bill E, Shongwe MS. Unusual Magneto‐Structural Features of the Halo‐Substituted Materials [Fe
III
(5‐X‐salMeen)
2
]Y: a Cooperative [HS‐HS]↔[HS‐LS] Spin Transition. Chemistry 2020; 26:4766-4779. [DOI: 10.1002/chem.201904744] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Indexed: 01/21/2023]
Affiliation(s)
- Mariam A. Al‐Azzani
- Department of ChemistryCollege of ScienceSultan Qaboos University Private Bag 36, Al-Khod 123 Muscat Sultanate of Oman
| | - Faizah Al‐Mjeni
- Department of ChemistryCollege of ScienceSultan Qaboos University Private Bag 36, Al-Khod 123 Muscat Sultanate of Oman
| | - Ryoji Mitsuhashi
- School of Science and TechnologyKwansei Gakuin University 2-1 Gakuen Sanda 669-1337 Japan
| | - Masahiro Mikuriya
- School of Science and TechnologyKwansei Gakuin University 2-1 Gakuen Sanda 669-1337 Japan
| | - Imaddin A. Al‐Omari
- Department of PhysicsCollege of ScienceSultan Qaboos University Private Bag 36, Al-Khod 123 Muscat Sultanate of Oman
| | | | - Eckhard Bill
- Max-Planck-Institut für Chemische Energiekonversion Stiftstrasse 34–36 45470 Mülheim an der Ruhr Germany
| | - Musa S. Shongwe
- Department of ChemistryCollege of ScienceSultan Qaboos University Private Bag 36, Al-Khod 123 Muscat Sultanate of Oman
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2
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Leconte N, Moutet J, Constantin T, Molton F, Philouze C, Thomas F. Coordination Chemistry of the Redox Non-Innocent Ligand Bis(2-amino-3,5-di-tert
-butylphenyl)amine with Group 10 Metal Ions (Ni, Pd, Pt). Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201701448] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Nicolas Leconte
- Département de Chimie Moléculaire, UMR-5250; Université Grenoble Alpes; BP 53 38041 Grenoble Cedex 9 France
| | - Jules Moutet
- Département de Chimie Moléculaire, UMR-5250; Université Grenoble Alpes; BP 53 38041 Grenoble Cedex 9 France
| | - Thibaut Constantin
- Département de Chimie Moléculaire, UMR-5250; Université Grenoble Alpes; BP 53 38041 Grenoble Cedex 9 France
| | - Florian Molton
- Département de Chimie Moléculaire, UMR-5250; Université Grenoble Alpes; BP 53 38041 Grenoble Cedex 9 France
| | - Christian Philouze
- Département de Chimie Moléculaire, UMR-5250; Université Grenoble Alpes; BP 53 38041 Grenoble Cedex 9 France
| | - Fabrice Thomas
- Département de Chimie Moléculaire, UMR-5250; Université Grenoble Alpes; BP 53 38041 Grenoble Cedex 9 France
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Baydoun H, Mazumder S, Schlegel HB, Verani CN. Deactivation of a Cobalt Catalyst for Water Reduction through Valence Tautomerism. Chemistry 2017; 23:9266-9271. [DOI: 10.1002/chem.201701783] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Indexed: 11/12/2022]
Affiliation(s)
- Habib Baydoun
- Department of Chemistry Wayne State University 5101 Cass Ave Detroit MI 48202 USA
| | - Shivnath Mazumder
- Department of Chemistry Wayne State University 5101 Cass Ave Detroit MI 48202 USA
- Current address: Department of Chemistry Hofstra University Berliner Hall Hempstead NY 11549 USA
| | - H. Bernhard Schlegel
- Department of Chemistry Wayne State University 5101 Cass Ave Detroit MI 48202 USA
| | - Cláudio N. Verani
- Department of Chemistry Wayne State University 5101 Cass Ave Detroit MI 48202 USA
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4
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Wickramasinghe LD, Mazumder S, Kpogo KK, Staples RJ, Schlegel HB, Verani CN. Electronic Modulation of the SOMO–HOMO Energy Gap in Iron(III) Complexes towards Unimolecular Current Rectification. Chemistry 2016; 22:10786-90. [DOI: 10.1002/chem.201602444] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Indexed: 11/08/2022]
Affiliation(s)
| | - Shivnath Mazumder
- Department of Chemistry Wayne State University 5101 Cass Ave Detroit MI 48202 USA
| | - Kenneth K. Kpogo
- Department of Chemistry Wayne State University 5101 Cass Ave Detroit MI 48202 USA
| | | | - H. Bernhard Schlegel
- Department of Chemistry Wayne State University 5101 Cass Ave Detroit MI 48202 USA
| | - Cláudio N. Verani
- Department of Chemistry Wayne State University 5101 Cass Ave Detroit MI 48202 USA
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Basu D, Mazumder S, Shi X, Baydoun H, Niklas J, Poluektov O, Schlegel HB, Verani CN. Ligand Transformations and Efficient Proton/Water Reduction with Cobalt Catalysts Based on Pentadentate Pyridine‐Rich Environments. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201409813] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Debashis Basu
- Department of Chemistry, Wayne State University, 5101 Cass Ave, Detroit, MI 48202 (USA) http://chem.wayne.edu/veranigroup/
| | - Shivnath Mazumder
- Department of Chemistry, Wayne State University, 5101 Cass Ave, Detroit, MI 48202 (USA) http://chem.wayne.edu/veranigroup/
| | - Xuetao Shi
- Department of Chemistry, Wayne State University, 5101 Cass Ave, Detroit, MI 48202 (USA) http://chem.wayne.edu/veranigroup/
| | - Habib Baydoun
- Department of Chemistry, Wayne State University, 5101 Cass Ave, Detroit, MI 48202 (USA) http://chem.wayne.edu/veranigroup/
| | - Jens Niklas
- Argonne National Laboratory, Chemistry Division, E117, 9700 South Cass Ave. Argonne, IL 60439 (USA)
| | - Oleg Poluektov
- Argonne National Laboratory, Chemistry Division, E117, 9700 South Cass Ave. Argonne, IL 60439 (USA)
| | - H. Bernhard Schlegel
- Department of Chemistry, Wayne State University, 5101 Cass Ave, Detroit, MI 48202 (USA) http://chem.wayne.edu/veranigroup/
| | - Cláudio N. Verani
- Department of Chemistry, Wayne State University, 5101 Cass Ave, Detroit, MI 48202 (USA) http://chem.wayne.edu/veranigroup/
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Basu D, Mazumder S, Shi X, Baydoun H, Niklas J, Poluektov O, Schlegel HB, Verani CN. Ligand transformations and efficient proton/water reduction with cobalt catalysts based on pentadentate pyridine-rich environments. Angew Chem Int Ed Engl 2014; 54:2105-10. [PMID: 25533319 DOI: 10.1002/anie.201409813] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Revised: 11/25/2014] [Indexed: 11/10/2022]
Abstract
A series of cobalt complexes with pentadentate pyridine-rich ligands is studied. An initial Co(II) amine complex 1 is prone to aerial oxidation yielding a Co(III) imine complex 2 that is further converted into an amide complex 4 in presence of adventitious water. Introduction of an N-methyl protecting group to the ligand inhibits this oxidation and gives rise to the Co(II) species 5. Both the Co(III) 4 and Co(II) 5 show electrocatalytic H2 generation in weakly acidic media as well as in water. Mechanisms of catalysis seem to involve the protonation of a Co(II)-H species generated in situ.
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Affiliation(s)
- Debashis Basu
- Department of Chemistry, Wayne State University, 5101 Cass Ave, Detroit, MI 48202 (USA) http://chem.wayne.edu/veranigroup/
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Wickramasinghe LD, Mazumder S, Gonawala S, Perera MM, Baydoun H, Thapa B, Li L, Xie L, Mao G, Zhou Z, Schlegel HB, Verani CN. The Mechanisms of Rectification in Au|Molecule|Au Devices Based on Langmuir-Blodgett Monolayers of Iron(III) and Copper(II) Surfactants. Angew Chem Int Ed Engl 2014; 53:14462-7. [DOI: 10.1002/anie.201408649] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 09/18/2014] [Indexed: 11/08/2022]
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8
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Wickramasinghe LD, Mazumder S, Gonawala S, Perera MM, Baydoun H, Thapa B, Li L, Xie L, Mao G, Zhou Z, Schlegel HB, Verani CN. The Mechanisms of Rectification in Au|Molecule|Au Devices Based on Langmuir-Blodgett Monolayers of Iron(III) and Copper(II) Surfactants. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201408649] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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9
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Metzinger R, Demeshko S, Limberg C. A Novel Pentadentate Redox-Active Ligand and Its Iron(III) Complexes: Electronic Structures and O2Reactivity. Chemistry 2014; 20:4721-35. [DOI: 10.1002/chem.201304535] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 01/15/2014] [Indexed: 11/11/2022]
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10
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Wickramasinghe LD, Perera MM, Li L, Mao G, Zhou Z, Verani CN. Rectification in Nanoscale Devices Based on an Asymmetric Five-Coordinate Iron(III) Phenolate Complex. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201306765] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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11
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Wickramasinghe LD, Perera MM, Li L, Mao G, Zhou Z, Verani CN. Rectification in Nanoscale Devices Based on an Asymmetric Five-Coordinate Iron(III) Phenolate Complex. Angew Chem Int Ed Engl 2013; 52:13346-50. [DOI: 10.1002/anie.201306765] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Indexed: 11/12/2022]
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12
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Chiang L, Kochem A, Jarjayes O, Dunn TJ, Vezin H, Sakaguchi M, Ogura T, Orio M, Shimazaki Y, Thomas F, Storr T. Radical Localization in a Series of Symmetric NiIIComplexes with Oxidized Salen Ligands. Chemistry 2012; 18:14117-27. [DOI: 10.1002/chem.201201410] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Indexed: 11/12/2022]
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