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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Rančić, M. |
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| Azevedo, Nuno Monteiro |
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| Rignanese, Gian-Marco |
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Carlström, Göran
Lund University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (5/5 displayed)
- 2020Spherical Micelles with Nonspherical Cores: Effect of Chain Packing on the Micellar Shapecitations
- 2020Spherical Micelles with Nonspherical Corescitations
- 2020Spherical Micelles with Nonspherical Cores : Effect of Chain Packing on the Micellar Shapecitations
- 2016Diastereomerization Dynamics of a Bistridentate RuII Complexcitations
- 2016Diastereomerization Dynamics of a Bistridentate RuII Complexcitations
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article
Diastereomerization Dynamics of a Bistridentate RuII Complex
Abstract
<p>The unsymmetrical nature of a new tridentate ligand bis(quinolinyl)-1,3-pyrazole (DQPz) is exploited in a bistridentate Ru(II) complex [Ru(DQPz)<sub>2</sub>]<sup>2+</sup> to elucidate an unexpected dynamic diastereomerism. Structural characterization based on a combination of nuclear magnetic resonance spectroscopy and density functional theory calculations reveals the first quantifiable diastereomerization dynamics for Ru complexes with fully conjugated tridentate heteroaromatic ligands. A mechanism that involves a large-scale twisting motion of the ligands is proposed to explain the dynamic interconversion between the observed diastereomers, and the analysis of both experiments and calculations reveals a potential energy landscape with a transition barrier for the diastereomerization of ∼70 kJ mol<sup>-1</sup>. The structural flexibility demonstrated around the central transition metal ion has implications for integration of complexes into catalytic and photochemical applications.</p>