Brunner, Henri and Oeschey, Ralf and Nuber, Bernd (1996) Optically active transition metal complexes .108. Synthesis, crystal structure and properties of a novel ''quasi-meso'' dinuclear eta(6)-benzene-ruthenium(II) complex with chiral salicylaldiminato ligands. JOURNAL OF ORGANOMETALLIC CHEMISTRY, 518 (1-2). pp. 47-53. ISSN 0022-328X, 1872-8561
Full text not available from this repository.Abstract
The chloride ligand in the diastereomer mixture (R(Ru),S-C)- and (S-Ru,S-C)-[(eta(6)-C6H6)Ru(LL*)Cl], 1a and 1b (ratio 86:14), was abstracted in acetone at - 30 to - 40 degrees C by AgPF6[HLL* = (S)-(1-phenylethyl)salicylaldimine]. X-ray analysis of crystals of the product [(eta(6)-C6H6)Ru(LL*)](2)(PF6)(2) . 2CO(CH3)(2) 3 shows a dimeric structure with opposite ruthenium configurations. Therefore, the dimer containing two salicylaldiminato ligands with the same chirality can be described as a ''quasi-meso'' stereoisomer. The complex is supposed to be formed from the solvate complexes with coordinated acetone during crystallisation. This assumption is in accord with the reactivity of 3 towards water in acetone, A conformational analysis based on the NMR spectroscopic results shows that the arrangement of the 1-phenylethyl groups relative to the [(eta(6)-C6H6)Ru(LL*)] fragments is determined by the face-on orientation of the phenyl substituent with respect to the pi-bonded benzene ligands.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PI-PI-INTERACTIONS; ABSOLUTE-CONFIGURATION; RUTHENIUM COMPLEXES; arene; chirality; ruthenium; bridging ligand; crystal structure; Schiff base |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Anorganische Chemie > Alumni or Retired Professors > Prof. Dr. Arnd Vogler |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 05 Jul 2023 05:12 |
| Last Modified: | 05 Jul 2023 05:12 |
| URI: | https://pred.uni-regensburg.de/id/eprint/51602 |
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