Organometallic Borromean Rings and (2) Catenanes Featuring Di‐ NHC Ligands
Abstract: We report herein a series of organometallic Borromean rings (BRs) and [2]catenanes prepared from benzobiscarbene ligands. The reaction of dinickel complexes of the benzobiscarbenes 1 a–1 c with a thiazolothiazole bridged bipyridyl ligand L2 led by self‐assembly to a series of organometallic BRs. Solvophobic effects played a crucial role in the formation and stability of the interlocked species. The stability of BRs is related to the N‐alkyl substituents at the precursors 1 a–1 c, where longer alkyl substitutes improve stability and inter‐ring interactions. Solvophobic effects are also important for the stability of [2]catenanes prepared from 1 a–1 c and a flexible bipyridyl ligand L3. In solution, an equilibrium between the [2]catenanes and their macrocyclic building blocks was observed. High proportions of [2]catenanes were obtained in concentrated solutions or polar solvents. The proportion of [2]catenanes in solution could be further enhanced by lengthening of the N‐alkyl substitutes.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Organometallic Borromean Rings and (2) Catenanes Featuring Di‐ NHC Ligands ; day:03 ; month:02 ; year:2023 ; extent:8
Angewandte Chemie / International edition. International edition ; (03.02.2023) (gesamt 8)
- Creator
- DOI
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10.1002/anie.202217681
- URN
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urn:nbn:de:101:1-2023020414120838043594
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
- 14.08.2025, 10:51 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Lu, Ye
- Dutschke, Patrick D.
- Kinas, Jenny
- Hepp, Alexander
- Jin, Guo-Xin
- Hahn, Franz Ekkehardt
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Organometallic chemistry of multidentate imidazolin-2-imine ligands
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Design, synthesis and postsynthetic modifications of metallosupramolecular architectures featuring poly-NHC ligands
Actinide Organometallic Complexes with π‐Ligands
Organometallic chemistry of multidentate imidazolin-2-imine ligands
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Ruthenium-based olefin metathesis catalysts with monodentate unsymmetrical NHC ligands
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