Brunner, Henri and Zwack, Thomas and Zabel, Manfred (2003) Optically active transition metal complexes. Part 131. Synthesis and epimerization of chiral-at-metal (eta(6)-arene)ruthenium(II) and (eta(6)-arene)osmium(II) half-sandwich complexes. POLYHEDRON, 22 (6). pp. 861-865. ISSN 0277-5387
Full text not available from this repository.Abstract
Ortho-metalated derivatives of the optically active ligand (S)-(-)-N,N-dimethyl(1-phenylethyl)amine (LL*-H) react with [(eta(6)-p-cymene)MCl2](2) (M = Ru, Os) to give the half-sandwich complexes [(eta(6)-p-cymene)Ru(LL*)Cl] (1a,b) and [(eta(6)-p-cymene)Os(LL*)Cl] (2a,b). In both cases two diastereomers (R-M,S-C) and (S-M,S-C) arise differing only in the metal configuration. On crystallization the (R-M,S-C)-isomers of both complexes 1 and 2 were obtained diastereomerically pure. The absolute configurations were established by X-ray structure analyses. Epimerization studies clearly showed that the metal configuration in both complexes is labile in solution. (C) 2003 Elsevier Science Ltd. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CRYSTAL-STRUCTURES; chiral-at-metal complexes; configurational stability; epimerization; diastereomer equilibria; X-ray structure analyses |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Alumni or Retired Professors > Prof. Dr. Henri Brunner |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 17 Aug 2021 14:11 |
| Last Modified: | 17 Aug 2021 14:11 |
| URI: | https://pred.uni-regensburg.de/id/eprint/39199 |
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