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Lam RH, Keaveney ST, Messerle BA, Pernik I. Bimetallic Rhodium Complexes: Precatalyst Activation-Triggered Bimetallic Enhancement for the Hydrosilylation Transformation. ACS Catal 2023. [DOI: 10.1021/acscatal.2c04388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Raphael H. Lam
- School of Natural Sciences, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Sinead T. Keaveney
- School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Barbara A. Messerle
- School of Natural Sciences, Macquarie University, Sydney, New South Wales 2109, Australia
- School of Chemistry, The University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Indrek Pernik
- School of Natural Sciences, Macquarie University, Sydney, New South Wales 2109, Australia
- School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
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2
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Wu Z, Li L, Li W, Lu X, Xie Y, Schaefer HF. Carbonylic-Carbon-Centered Mechanism for Catalytic α-Methylation. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00150] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zeyu Wu
- College of Pharmacy, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, Hebei, P. R. China
| | - Longfei Li
- College of Pharmacy, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, Hebei, P. R. China
| | - Wan Li
- College of Pharmacy, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, Hebei, P. R. China
| | - Xuena Lu
- College of Pharmacy, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of Ministry of Education, Hebei University, Baoding 071002, Hebei, P. R. China
| | - Yaoming Xie
- Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602, United States
| | - Henry F. Schaefer
- Center for Computational Quantum Chemistry, University of Georgia, Athens, Georgia 30602, United States
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3
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Werlé C, Anstine DM, Karmazin L, Bailly C, Ricard L, Djukic JP. New Pd(ii) hemichelates devoid of incipient bridging CO⋯Pd interactions. Dalton Trans 2016; 45:607-17. [DOI: 10.1039/c5dt03648h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three novel hemichelates of Pd(ii) resulting from the reaction of indene and hydrophenanthrene-based organometallic anions with three μ-chloro-bridged palladacycles are reported.
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Affiliation(s)
- Christophe Werlé
- Institut de Chimie de Strasbourg
- UMR 7177
- Université de Strasbourg
- F-67000 Strasbourg
- France
| | - Dylan M. Anstine
- Institut de Chimie de Strasbourg
- UMR 7177
- Université de Strasbourg
- F-67000 Strasbourg
- France
| | - Lydia Karmazin
- Institut de Chimie de Strasbourg
- UMR 7177
- Université de Strasbourg
- F-67000 Strasbourg
- France
| | - Corinne Bailly
- Institut de Chimie de Strasbourg
- UMR 7177
- Université de Strasbourg
- F-67000 Strasbourg
- France
| | - Louis Ricard
- Département de Chimie
- Ecole Polytechnique CNRS
- F-91128 Palaiseau Cedex
- France
| | - Jean-Pierre Djukic
- Institut de Chimie de Strasbourg
- UMR 7177
- Université de Strasbourg
- F-67000 Strasbourg
- France
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4
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Hänninen MM, Zamora MT, MacNeil CS, Knott JP, Hayes PG. Elucidation of the resting state of a rhodium NNN-pincer hydrogenation catalyst that features a remarkably upfield hydride 1H NMR chemical shift. Chem Commun (Camb) 2016; 52:586-9. [DOI: 10.1039/c5cc08348f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Rhodium(i) alkene complexes of an NNN-pincer ligand catalyze the hydrogenation of alkenes. The terminal or resting state of the catalyst, which exhibits an unusually upfield Rh–hydride 1H NMR chemical shift, has been identified.
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Affiliation(s)
- Mikko M. Hänninen
- Department of Chemistry and Biochemistry
- University of Lethbridge
- Lethbridge
- Canada
| | - Matthew T. Zamora
- Department of Chemistry and Biochemistry
- University of Lethbridge
- Lethbridge
- Canada
| | - Connor S. MacNeil
- Department of Chemistry and Biochemistry
- University of Lethbridge
- Lethbridge
- Canada
| | - Jackson P. Knott
- Department of Chemistry and Biochemistry
- University of Lethbridge
- Lethbridge
- Canada
| | - Paul G. Hayes
- Department of Chemistry and Biochemistry
- University of Lethbridge
- Lethbridge
- Canada
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5
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Nava M, Lopez N, Müller P, Wu G, Nocera DG, Cummins CC. Anion-Receptor Mediated Oxidation of Carbon Monoxide to Carbonate by Peroxide Dianion. J Am Chem Soc 2015; 137:14562-5. [PMID: 26465825 DOI: 10.1021/jacs.5b08495] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The reactivity of peroxide dianion O2(2-) has been scarcely explored in organic media due to the lack of soluble sources of this reduced oxygen species. We now report the finding that the encapsulated peroxide cryptate, [O2⊂mBDCA-5t-H6](2-) (1), reacts with carbon monoxide in organic solvents at 40 °C to cleanly form an encapsulated carbonate. Characterization of the resulting hexacarboxamide carbonate cryptate by single crystal X-ray diffraction reveals that carbonate dianion forms nine complementary hydrogen bonds with the hexacarboxamide cryptand, [CO3⊂mBDCA-5t-H6](2-) (2), a conclusion that is supported by spectroscopic data. Labeling studies and (17)O solid-state NMR data confirm that two-thirds of the oxygen atoms in the encapsulated carbonate derive from peroxide dianion, while the carbon is derived from CO. Further evidence for the formation of a carbonate cryptate was obtained by three methods of independent synthesis: treatment of (i) free cryptand with K2CO3; (ii) monodeprotonated cryptand with PPN[HCO3]; and (iii) free cryptand with TBA[OH] and atmospheric CO2. This work demonstrates CO oxidation mediated by a hydrogen-bonding anion receptor, constituting an alternative to transition-metal catalysis.
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Affiliation(s)
- Matthew Nava
- Department of Chemistry, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139-4307, United States
| | - Nazario Lopez
- Department of Chemistry, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139-4307, United States
| | - Peter Müller
- Department of Chemistry, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139-4307, United States
| | - Gang Wu
- Department of Chemistry, Queen's University , 90 Bader Lane, Kingston, Ontario K7L3N6, Canada
| | - Daniel G Nocera
- Department of Chemistry and Chemical Biology, Harvard University , 12 Oxford Street, Cambridge Massachusetts 02138, United States
| | - Christopher C Cummins
- Department of Chemistry, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139-4307, United States
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6
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Mollin S, Riedel R, Harms K, Meggers E. Octahedral rhodium(III) complexes as kinase inhibitors: Control of the relative stereochemistry with acyclic tridentate ligands. J Inorg Biochem 2015; 148:11-21. [DOI: 10.1016/j.jinorgbio.2015.01.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Revised: 01/13/2015] [Accepted: 01/13/2015] [Indexed: 01/29/2023]
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7
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Nagel C, McLean S, Poole RK, Braunschweig H, Kramer T, Schatzschneider U. Introducing [Mn(CO)3(tpa-κ(3)N)](+) as a novel photoactivatable CO-releasing molecule with well-defined iCORM intermediates - synthesis, spectroscopy, and antibacterial activity. Dalton Trans 2015; 43:9986-97. [PMID: 24855638 DOI: 10.1039/c3dt51848e] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
[Mn(CO)3(tpa-κ(3)N)]Br was prepared as a novel photoactivatable CO-releasing molecule (PhotoCORM) from [MnBr(CO)5] and tris(2-pyridylmethyl)amine (tpa) for the delivery of carbon monoxide to biological systems, with the κ(3)N binding mode of the tetradentate tpa ligand demonstrated by X-ray crystallography. The title compound is a CORM prodrug stable in solution in the dark for up to 16 h. However, photoactivation at 365 nm leads to CO release from the metal coordination sphere and transfer to haem proteins, as demonstrated by the standard myoglobin assay. Different iCORM intermediates could be detected with solution IR spectroscopy and assigned using DFT vibrational calculations. The antibacterial activity of the complex was studied on Escherichia coli. No effects were observed when the cultures were either kept in the dark in the presence of PhotoCORM or illuminated in the absence of metal complex. However, photoactivation of [Mn(CO)3(tpa-κ(3)N)]Br at 365 nm led to the appearance of the spectral signatures of CO-coordinated haems in the terminal oxidases of the bacterial electron transport chain in whole-cell UV/Vis absorption spectra. Significant internalization of the PhotoCORM was demonstrated by ICP-MS measurement of the intracellular manganese concentration. In particular when using medium with succinate as the sole carbon source, a very pronounced and concentration-dependent decrease in the E. coli growth rate could be observed upon illumination in the presence of metal complex, which is attributed to the constrained energy metabolism under these conditions and a strong indicator of terminal oxidase inhibition by carbon monoxide delivered from the PhotoCORM.
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Affiliation(s)
- Christoph Nagel
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany.
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8
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Meier G, Steck V, Braun B, Eißler A, Herrmann R, Ahrens M, Laubenstein R, Braun T. Synthesis and Structures of Fluorinated (β‐Diketiminato)rhodium Complexes: Si–H Activation of Silanes at a Carbonyl Complex. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402087] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Gregor Meier
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
| | - Viktoria Steck
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
| | - Beatrice Braun
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
| | - Anna Eißler
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
| | - Roy Herrmann
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
| | - Mike Ahrens
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
| | - Reik Laubenstein
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
| | - Thomas Braun
- Humboldt‐Universität zu Berlin, Department of Chemistry, Brook‐Taylor‐Straße 2, 12489 Berlin, http://www2.hu‐berlin.de/chemie/braun/
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9
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Dürr S, Zarzycki B, Ertler D, Ivanović-Burmazović I, Radius U. Aerobic CO Oxidation of a Metal-Bound Carbonyl in a NHC-Stabilized Cobalt Half-Sandwich Complex. Organometallics 2012. [DOI: 10.1021/om201037w] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Simon Dürr
- Institut für
Anorganische
Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany
| | - Bartosz Zarzycki
- Institut für
Anorganische
Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany
| | - Daniel Ertler
- Institut für
Anorganische
Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany
| | | | - Udo Radius
- Institut für
Anorganische
Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, D-97074 Würzburg, Germany
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10
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Horn B, Limberg C, Herwig C, Feist M, Mebs S. CO oxidation at nickel centres by N2O or O2 to yield a novel hexanuclear carbonate. Chem Commun (Camb) 2012; 48:8243-5. [DOI: 10.1039/c2cc33846g] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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11
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Preparation, properties, and reactivity of carbonylrhodium(I) complexes of di(2-pyrazolylaryl)amido-pincer ligands. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.08.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Meier G, Braun T. A Rhodium Peroxido Complex in Mono-, Di-, and Peroxygenation Reactions. Angew Chem Int Ed Engl 2011; 50:3280-4. [DOI: 10.1002/anie.201007315] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2010] [Indexed: 11/08/2022]
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13
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Meier G, Braun T. A Rhodium Peroxido Complex in Mono-, Di-, and Peroxygenation Reactions. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201007315] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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14
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Westrup KCM, Gregório T, Stinghen D, Reis DM, Hitchcock PB, Ribeiro RR, Barison A, Back DF, de Sá EL, Nunes GG, Soares JF. Non-oxo vanadium(iv) alkoxide chemistry: solid state structures, aggregation equilibria and thermochromic behaviour in solution. Dalton Trans 2011; 40:3198-210. [DOI: 10.1039/c0dt01547d] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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