Stereoselectivity in the formation of tris-diimine complexes of Fe(II), Ru(II), and Os(II) with a C₂-symmetric chiral derivative of 2,2′-bipyridine
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Drahoňovský, Dušan
Department of Chemistry, University of Fribourg, Switzerland
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Knof, Ulrich
Department of Chemistry, University of Fribourg, Switzerland
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Jungo, Laurence
Department of Chemistry, University of Fribourg, Switzerland
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Belser, Thomas
Department of Chemistry, University of Fribourg, Switzerland
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Neels, Antonia
Institute of Chemistry, University of Neuchâtel, Switzerland
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Labat, Gaël Charles
Institute of Chemistry, University of Neuchâtel, Switzerland
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Stoeckli-Evans, Helen
Institute of Chemistry, University of Neuchâtel, Switzerland
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Zelewsky, Alexander von
Department of Chemistry, University of Fribourg, Switzerland
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Published in:
- Dalton Transactions. - 2006, p. 1444 - 1454
English
A C₂-symmetric enantiopure 4,5-bis(pinene)-2,2′-bipyridine ligand (–)-L was used to investigate the diastereoselectivity in the formation of [ML₃]²⁺ coordination species (M = Fe(II), Ru(II), Os(II), Zn(II), Cd(II), Cu(II), Ni(II)), and [ML₂Cl₂] (M = Ru(II), Os(II)). The X-ray structures of the [ML₃]²⁺ complexes were determined for Δ-[FeL₃](PF₆)₂, Δ-[RuL₃](PF₆)₂, Λ-[RuL₃](PF₆)₂, Δ-[OsL₃](PF₆)₂, and Λ-[OsL₃](TfO)₂. All of these compounds were also characterized by NMR, CD and UV/VIS absorption spectroscopy. The [FeL₃]²⁺ diastereoisomers were studied in equilibrated solutions at various temperatures and in several solvents. The [RuL₃]²⁺ complexes, which are thermally stable up to 200 °C, were photochemically equilibrated.
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Faculty
- Faculté des sciences et de médecine
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Department
- Département de Chimie
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Language
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Classification
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Chemistry
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License
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License undefined
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Identifiers
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Persistent URL
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https://folia.unifr.ch/unifr/documents/300101
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