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Wickleder M, Zimmermann V, Schindler LV, van Gerven D. The reaction of NH4Cl with SO3:Two modifications of (NH4))[SO3Cl]. Z Anorg Allg Chem 2022. [DOI: 10.1002/zaac.202200238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mathias Wickleder
- Universitat zu Koln Anorganische Chemie Greinstraße 6 50939 Köln GERMANY
| | | | | | - David van Gerven
- Department für Chemie, Universität zu Köln, Greinstraße 6, 50939 Köln, Germany, GERMANY
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Grödler D, Weidemann ML, Lichtenberg A, Greven T, Nickstadt R, Haydo M, Wickleder M, Klein A, Johrendt D, Mathur S, Zegke M, Raauf A. Heterobimetallic uranyl(VI) alkoxides of lanthanoids: formation through simple ligand exchange. Chem Commun (Camb) 2021; 58:835-838. [PMID: 34931647 DOI: 10.1039/d1cc05444a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Lanthanoid and actinoid silylamides are versatile starting materials. Herein we show how a simple ligand exchange with tert-butanol leads to the formation of the first trimeric heterobimetallic uranyl(VI)-lanthanoid(III) alkoxide complexes. The μ3 coordination of the endogenous uranyl oxo atom results in a significant elongation of the bond length and a significant deviation from the linear uranyl arrangement.
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Affiliation(s)
- Dennis Grödler
- Department of Chemistry, Institute for Inorganic Chemistry, University of Cologne, Greinstr. 6, 50939 Cologne, Germany.
| | - Martin L Weidemann
- Department of Chemistry, Ludwig-Maximilians-University of Munich, Butenandtstraße 5-13 (D), 81377 Munich, Germany
| | - Andreas Lichtenberg
- Department of Chemistry, Institute for Inorganic Chemistry, University of Cologne, Greinstr. 6, 50939 Cologne, Germany.
| | - Tobias Greven
- Department of Chemistry, Institute for Inorganic Chemistry, University of Cologne, Greinstr. 6, 50939 Cologne, Germany.
| | - Robin Nickstadt
- Department of Chemistry, Institute for Inorganic Chemistry, University of Cologne, Greinstr. 6, 50939 Cologne, Germany.
| | - Malek Haydo
- Department of Chemistry, Institute for Inorganic Chemistry, University of Cologne, Greinstr. 6, 50939 Cologne, Germany.
| | - Mathias Wickleder
- Department of Chemistry, Institute for Inorganic Chemistry, University of Cologne, Greinstr. 6, 50939 Cologne, Germany.
| | - Axel Klein
- Department of Chemistry, Institute for Inorganic Chemistry, University of Cologne, Greinstr. 6, 50939 Cologne, Germany.
| | - Dirk Johrendt
- Department of Chemistry, Ludwig-Maximilians-University of Munich, Butenandtstraße 5-13 (D), 81377 Munich, Germany
| | - Sanjay Mathur
- Department of Chemistry, Institute for Inorganic Chemistry, University of Cologne, Greinstr. 6, 50939 Cologne, Germany.
| | - Markus Zegke
- Department of Chemistry, Institute for Inorganic Chemistry, University of Cologne, Greinstr. 6, 50939 Cologne, Germany.
| | - Aida Raauf
- Department of Chemistry, Institute for Inorganic Chemistry, University of Cologne, Greinstr. 6, 50939 Cologne, Germany.
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Liebing P, Kalim J, Arefyeva N, Oehler F, Wickleder M, Togni A. A Tunable Trifluoromethyliodonium Reagent. Angew Chem Int Ed Engl 2019; 58:8585-8588. [PMID: 31016799 DOI: 10.1002/anie.201903623] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Indexed: 11/07/2022]
Abstract
Four complexes of MCl4 (M=Ti, Zr, Hf) with the hypervalent trifluoromethyl iodine reagent trifluoromethyl-1,3-dihydro-3,3-dimethyl-1,2-benziodoxole (1,=L) are described. With TiCl4 , an I-O bond cleavage occurs, leading to the formation of the trifluoromethyliodonium alcoholate complexes [Ti2 Cl6 (L)4 ]Cl2 (2 a) and Ti2 Cl8 (L) (2 b). Reactions with ZrCl4 and HfCl4 form the complexes ZrCl4 (L)2 (3) and HfCl4 (L)2 (4), respectively, wherein the original I-O bond is retained and elongated compared to that in free 1. Therefore, the reactivity of 1 can be easily and practically fine-tuned by addition of different metal chlorides, following the order ZrCl4 /HfCl4 <TiCl4 <2 TiCl4 . Complexes 2 a, 3, and 4 are remarkably bench-stable forms of activated reagent 1, while 2 b is readily accessible in situ. 2 a and 2 b represent the first "real" trifluoromethyliodonium reagents derived from iodanes, that is, with the I-O bond being completely cleaved. The new complexes were shown to be useful for the trifluoromethylation of para-toluenesulfonate under aprotic conditions.
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Affiliation(s)
- Phil Liebing
- Swiss Federal Institute of Technology, ETH Zurich, Department of Chemistry and Applied Biosciences, Vladimir-Prelog-Weg 2, 8093, Zurich, Switzerland.,Current Address: Otto-von-Guericke-Universität Magdeburg, Institut für Chemie, Universitätsplatz 2, 39108, Magdeburg, Germany
| | - Jorna Kalim
- Swiss Federal Institute of Technology, ETH Zurich, Department of Chemistry and Applied Biosciences, Vladimir-Prelog-Weg 2, 8093, Zurich, Switzerland
| | - Natalia Arefyeva
- University of Cologne, Department of Chemistry, Institute of Inorganic Chemistry, Greinstrasse 6, 50939, Cologne, Germany
| | - Florian Oehler
- Martin-Luther-Universität Halle-Wittenberg, Institut für Chemie, Kurt-Mothes-Strasse 2, 06120, Halle (Saale), Germany
| | - Mathias Wickleder
- University of Cologne, Department of Chemistry, Institute of Inorganic Chemistry, Greinstrasse 6, 50939, Cologne, Germany
| | - Antonio Togni
- Swiss Federal Institute of Technology, ETH Zurich, Department of Chemistry and Applied Biosciences, Vladimir-Prelog-Weg 2, 8093, Zurich, Switzerland
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Liebing P, Kalim J, Arefyeva N, Oehler F, Wickleder M, Togni A. Ein abstimmbares Trifluormethyliodonium‐Reagenz. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201903623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Phil Liebing
- Eidgenössische Technische Hochschule (ETH) ZürichDepartement Chemie und Angewandte Biowissenschaften Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
- Aktuelle Adresse: Otto-von-Guericke-Universität MagdeburgInstitut für Chemie Universitätsplatz 2 39108 Magdeburg Deutschland
| | - Jorna Kalim
- Eidgenössische Technische Hochschule (ETH) ZürichDepartement Chemie und Angewandte Biowissenschaften Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
| | - Natalia Arefyeva
- Universität zu KölnDepartment für ChemieInstitut für Anorganische Chemie Greinstraße 6 50939 Köln Deutschland
| | - Florian Oehler
- Martin-Luther-Universität Halle-WittenbergInstitut für Chemie Kurt-Mothes-Straße 2 06120 Halle (Saale) Deutschland
| | - Mathias Wickleder
- Universität zu KölnDepartment für ChemieInstitut für Anorganische Chemie Greinstraße 6 50939 Köln Deutschland
| | - Antonio Togni
- Eidgenössische Technische Hochschule (ETH) ZürichDepartement Chemie und Angewandte Biowissenschaften Vladimir-Prelog-Weg 2 8093 Zürich Schweiz
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Clauberg MH, Schmidt D, Rust J, Lehmann CW, Arefyeva N, Wickleder M, Mohr F. Nickel(II) NHC-complexes with tridentate, dianionic ligands. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2018.11.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Christoffers J, Muesmann T, Wickleder M, Zitzer C. Octahydropentalene 2,5-Disulfonic Acid - A New Linker Molecule for Coordination Polymers. Synlett 2013. [DOI: 10.1055/s-0032-1317806] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Christoffers J, Muesmann T, Wickleder M. Preparation of Linear Aromatic Disulfonic Acids: New Linker Molecules for Metal-Organic Frameworks. SYNTHESIS-STUTTGART 2011. [DOI: 10.1055/s-0030-1260123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Parac-Vogt TN, Pacco A, Nockemann P, Laurent S, Muller RN, Wickleder M, Meyer G, Vander Elst L, Binnemans K. Relaxometric Study of Copper [15]Metallacrown-5 Gadolinium Complexes Derived from α-Aminohydroxamic Acids. Chemistry 2006; 12:204-10. [PMID: 16267864 DOI: 10.1002/chem.200500136] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Proton nuclear magnetic relaxation dispersion (NMRD) profiles were recorded between 0.24 mT and 1.4 T for lanthanum(III)- and gadolinium(III)-containing [15]metallacrown-5 complexes derived from alpha-aminohydroxamic acids and with copper(II) as the ring metal. The influence of the different R-groups on the proton relaxivity was investigated, and a linear relationship between the relaxivity and the molecular mass of the metallacrown complex was found. The selectivity of the metallacrown complexes was tested by transmetalation experiments with zinc(II) ions. The crystal structure of the copper [15]metallacrown-5 gadolinium complex with glycine hydroximate ligands is reported.
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Affiliation(s)
- Tatjana N Parac-Vogt
- Katholieke Universiteit Leuven, Department of Chemistry, Celestijnenlaan 200F, 3001 Leuven, Belgium
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