Titelangaben
Dehnicke, Kurt ; Greiner, Andreas:
Unusual complex chemistry of rare-earth elements: Large ionic radii-small coordination numbers.
In: Angewandte Chemie International Edition.
Bd. 42
(2003)
Heft 12
.
- S. 1340-1354.
ISSN 1521-3773
DOI: https://doi.org/10.1002/anie.200390346
Abstract
Because of their large ionic radii and relatively low oxidation states rare-earth elements generally form complexes which have high coordination numbers and weak metal–ligand bonds. They are often not suitable for homogeneous catalysis on account of their instability of configuration in solution. Complexes of the corresponding metal atoms with low coordination numbers may be an improvement. This type of complex can be obtained in the classical way by the introduction of bulky ligands, and recently, they were also prepared in reactions with ligand groups which offer remarkable metal–ligand bond features. This concept is demonstrated for complexes with bulky bis(trimethylsilyl)amido ligands {N(SiMe3)2}− and “slim” phosphoraneiminato ligands (NPR3−). Their suitability as catalysts for the ring-opening polymerization of lactones is reported as well.
Weitere Angaben
Publikationsform: | Artikel in einer Zeitschrift |
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Begutachteter Beitrag: | Ja |
Keywords: | coordination chemistry; ligand effects; N ligands; polymerization; rare-earth elements |
Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Makromolekulare Chemie II > Lehrstuhl Makromolekulare Chemie II - Univ.-Prof. Dr. Andreas Greiner Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Chemie > Lehrstuhl Makromolekulare Chemie II |
Titel an der UBT entstanden: | Nein |
Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 540 Chemie |
Eingestellt am: | 08 Apr 2015 11:53 |
Letzte Änderung: | 08 Apr 2015 11:53 |
URI: | https://eref.uni-bayreuth.de/id/eprint/9755 |