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Nguyen BX, VandeVen W, MacNeil GA, Zhou W, Paterson AR, Walsby CJ, Chiang L. High-Valent Ni and Cu Complexes of a Tetraanionic Bis(amidateanilido) Ligand. Inorg Chem 2023; 62:15180-15194. [PMID: 37676794 DOI: 10.1021/acs.inorgchem.3c02358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
High-valent metal species are often invoked as intermediates during enzymatic and synthetic catalytic cycles. Anionic donors are often required to stabilize such high-valent states by forming strong bonds with the Lewis acidic metal centers while decreasing their oxidation potentials. In this report, we discuss the synthesis of two high-valent metal complexes [ML]+ in which the NiIII and CuIII centers are ligated by a new tetradentate, tetraanionic bis(amidateanilido) ligand. [ML]+, obtained via chemical oxidation of ML, exhibits UV-vis-NIR, EPR, and XANES spectra characteristic of square planar, high-valent MIII species, suggesting the locus of oxidation for both [ML]+ is predominantly metal-based. This is supported by theoretical analyses, which also support the observed visible transitions as ligand-to-metal charge transfer transitions characteristic of square planar, high-valent MIII species. Notably, [ML]+ can also be obtained via O2 oxidation of ML due to its remarkably negative oxidation potentials (CuL/[CuL]+: -1.16 V, NiL/[NiL]+: -1.01 V vs Fc/Fc+ in MeCN). This demonstrates the exceptionally strong donating nature of the tetraanionic bis(amidateanilido) ligation and its ability to stabilize high-valent metal centers..
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Affiliation(s)
- Bach X Nguyen
- Department of Chemistry, University of the Fraser Valley, Abbotsford, British Columbia V2S 7M8, Canada
- Department of Chemistry, Simon Fraser University, Burnaby, British Columba V5A 1S6, Canada
| | - Warren VandeVen
- Department of Chemistry, Simon Fraser University, Burnaby, British Columba V5A 1S6, Canada
| | - Gregory A MacNeil
- Department of Chemistry, Simon Fraser University, Burnaby, British Columba V5A 1S6, Canada
| | - Wen Zhou
- Department of Chemistry, Simon Fraser University, Burnaby, British Columba V5A 1S6, Canada
| | - Alisa R Paterson
- Canadian Light Source, 44 Innovation Boulevard, Saskatoon, Saskatchewan S7N 2 V3, Canada
| | - Charles J Walsby
- Department of Chemistry, Simon Fraser University, Burnaby, British Columba V5A 1S6, Canada
| | - Linus Chiang
- Department of Chemistry, University of the Fraser Valley, Abbotsford, British Columbia V2S 7M8, Canada
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2
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Prabha D, Singh D, Kumar P, Gupta R. Selective Detection of Picric Acid and Pyrosulfate Ion by Nickel Complexes Offering a Hydrogen-Bonding-Based Cavity. Inorg Chem 2021; 60:17889-17899. [PMID: 34809423 DOI: 10.1021/acs.inorgchem.1c02479] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This work describes the synthesis and characterization of three mononuclear nickel complexes supported with amide-based pincer ligands. All three complexes presented an H-bonding-based cavity due to the migration of amidic protons to the appended heterocyclic rings that formed H-bonds with the metal-ligated solvent molecule(s). These complexes functioned as the nanomolar chemosensors for the detection of picric acid and pyrosulfate ion as inferred by the detailed absorption and emission spectral studies while further supported with FTIR, NMR, and mass spectra of the isolated products. We also illustrate a few practical detection methods for the sensing of picric acid in the solution state as the naked-eye colorimetric methods and in the solid state by employing polystyrene films.
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Affiliation(s)
- Divya Prabha
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Devender Singh
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Pramod Kumar
- Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Rajeev Gupta
- Department of Chemistry, University of Delhi, Delhi 110007, India
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3
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Ito T, Matsumoto T, Wakizaka M, Chang H. Coordination Behavior of
N
,
N′
‐Bis(diisopropylphosphinoacetyl)‐
o
‐phenylenediamide with Ni
II
and Cu
I
Ions. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700433] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Takahiro Ito
- Department of Applied Chemistry Faculty of Science and Engineering Chuo University 1‐13‐27 Kasuga, Bunkyo‐ku 112‐8551 Tokyo Japan
| | - Takeshi Matsumoto
- Department of Applied Chemistry Faculty of Science and Engineering Chuo University 1‐13‐27 Kasuga, Bunkyo‐ku 112‐8551 Tokyo Japan
- Precursory Research for Embryonic Science and Technology (PRESTO) Japan Science and Technology Agency (JST) 4‐1‐8 Honcho 332‐0012 Kawaguchi Saitama Japan
| | - Masanori Wakizaka
- Department of Applied Chemistry Faculty of Science and Engineering Chuo University 1‐13‐27 Kasuga, Bunkyo‐ku 112‐8551 Tokyo Japan
| | - Ho‐Chol Chang
- Department of Applied Chemistry Faculty of Science and Engineering Chuo University 1‐13‐27 Kasuga, Bunkyo‐ku 112‐8551 Tokyo Japan
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4
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Yadav S, Kumar S, Gupta R. Cobalt complexes of pyrrolecarboxamide ligands as catalysts in nitro reduction reactions: influence of electronic substituents on catalysis and mechanistic insights. Inorg Chem Front 2017. [DOI: 10.1039/c6qi00389c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Square-planar Co3+ complexes, displaying substrate binding abilities and facile Co3+/2+ redox potentials, function as efficient catalysts for hydrazine-mediated reduction of aromatic, heterocyclic, as well as aliphatic nitro substrates.
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Affiliation(s)
- Sunil Yadav
- Department of Chemistry
- University of Delhi
- Delhi – 110 007
- India
| | - Sushil Kumar
- Department of Chemistry
- University of Delhi
- Delhi – 110 007
- India
| | - Rajeev Gupta
- Department of Chemistry
- University of Delhi
- Delhi – 110 007
- India
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5
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Kumar S, Jha RR, Yadav S, Gupta R. Pd(ii) complexes with amide-based macrocycles: syntheses, properties and applications in cross-coupling reactions. NEW J CHEM 2015. [DOI: 10.1039/c4nj01300j] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Square-planar Pd2+ complexes of macrocyclic ligands carrying electronic substituents are synthesized and characterized. These well-characterized complexes have been used in the Suzuki and Heck cross-coupling reactions.
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Affiliation(s)
- Sushil Kumar
- Department of Chemistry
- University of Delhi
- Delhi – 110 007
- India
| | | | - Sunil Yadav
- Department of Chemistry
- University of Delhi
- Delhi – 110 007
- India
| | - Rajeev Gupta
- Department of Chemistry
- University of Delhi
- Delhi – 110 007
- India
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6
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Kumar S, Munjal M, Singh J, Gupta R. Nickel and Copper Complexes of Pyrrolecarboxamide Ligands – Stabilization of M
3+
Species and Isolation of Ni
3+
Complexes. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402361] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sushil Kumar
- Department of Chemistry, University of Delhi, Delhi 110007, India, http://people.du.ac.in/~rgupta/
| | - Megha Munjal
- Department of Chemistry, University of Delhi, Delhi 110007, India, http://people.du.ac.in/~rgupta/
| | - Jyoti Singh
- Department of Chemistry, University of Delhi, Delhi 110007, India, http://people.du.ac.in/~rgupta/
| | - Rajeev Gupta
- Department of Chemistry, University of Delhi, Delhi 110007, India, http://people.du.ac.in/~rgupta/
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7
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Mukherjee T, Costa Pessoa J, Kumar A, Sarkar AR. Synthesis, structure, magnetic properties and biological activity of supramolecular copper(ii) and nickel(ii) complexes with a Schiff base ligand derived from vitamin B6. Dalton Trans 2013; 42:2594-607. [DOI: 10.1039/c2dt31575k] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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8
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Kumar S, Vaidya S, Pissas M, Sanakis Y, Gupta R. Synthesis and Properties of Dinuclear μ‐Oxodiiron(III) Complexes of Amide‐Based Macrocyclic Ligands. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200683] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sushil Kumar
- Department of Chemistry, University of Delhi, Delhi 110007, India, Fax: +91‐11‐27666605, http://people.du.ac.in/~rgupta/
| | - Shefali Vaidya
- Department of Chemistry, University of Delhi, Delhi 110007, India, Fax: +91‐11‐27666605, http://people.du.ac.in/~rgupta/
| | - Michael Pissas
- Department of Materials Science, IAMPPNM, NCSR Demokritos, 15310 Ag. Paraskevi, Attiki, Greece
| | - Yiannis Sanakis
- Department of Materials Science, IAMPPNM, NCSR Demokritos, 15310 Ag. Paraskevi, Attiki, Greece
| | - Rajeev Gupta
- Department of Chemistry, University of Delhi, Delhi 110007, India, Fax: +91‐11‐27666605, http://people.du.ac.in/~rgupta/
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9
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Nickel and copper complexes with few amide-based macrocyclic and open-chain ligands. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.08.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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10
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Sharma SK, Gupta R. Studies on the structure and properties of nickel complexes in a set of amide-based 13-membered macrocyclic ligands. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.06.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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