Brunner, Henri and Weber, Matthias and Zabel, Manfred (2003) [(Cy)Ru(LL*)Cl] and related half-sandwich compounds - two diastereomers in the same single crystal. COORDINATION CHEMISTRY REVIEWS, 242 (1-2). pp. 3-13. ISSN 0010-8545, 1873-3840
Full text not available from this repository.Abstract
The ruthenium compound [(Cy)Ru(LL*)Cl] (1) crystallizes as a 1:1 mixture of the two diastereomers (R-Ru,S-C)-1 and (S-Ru,Sc)-1 in the same single crystal, whereas the corresponding osmium compound [(Cy)Os(LL*)Cl] (2), almost identical to 1 in the molecular parameters, crystallizes as the pure diastereomer (R-Os,S-C)-2. 1:1 diastereomer co-crystallization is traced back to a molecular recognition motif, the pair formation of fragments (Ar)MXY, in which X and Y are electronegative substituents. Thus, compounds of the type [(Ar)MXYZ], in particular (Cy)Ru derivatives, tend to form inversion pairs of enantiomers and also of diastereomers. Fifteen cases of 1:1 diastereomer co-crystallization in half-sandwich complexes are presented. The discussion is extended to [(Cy)RuLCl2] and related complexes. It is shown that there is a delicate balance between 1:1 diastereomer co-crystallization and crystallization as a pure diastereomer. (C) 2003 Elsevier B.V. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | BIOLOGICALLY IMPORTANT LIGANDS; TRANSITION-METAL COMPLEXES; CHIRAL RUTHENIUM COMPLEXES; SCHIFF-BASE COMPLEX; MONOXIDE LIGANDS; DIASTEREOSELECTIVITY; CONFIGURATION; REACTIVITY; STEREOCHEMISTRY; EPIMERIZATION; enantiomers; diastereomers; half-sandwich complexes; 1 : 1 diastereomer co-crystallization; molecular recognition |
| 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: | Petra Gürster |
| Date Deposited: | 25 Jun 2021 06:27 |
| Last Modified: | 25 Jun 2021 06:27 |
| URI: | https://pred.uni-regensburg.de/id/eprint/38847 |
Actions (login required)
 |
View Item |
