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Substituted Cyclooctatetraenes as Ligands in f ‐Metal Chemistry
Author(s) -
Roesky Peter W.
Publication year - 2001
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/1099-0682(200107)2001:7<1653::aid-ejic1653>3.0.co;2-n
Subject(s) - chemistry , alkyl , silylation , aryl , intermolecular force , thermal stability , metal , solubility , coordination complex , stereochemistry , combinatorial chemistry , organic chemistry , molecule , catalysis
The use of substituted cyclooctatetraenes confers various desired properties on the resulting metal complexes such as a higher thermal and kinetic stability as well as higher solubility relative to the nonsubstituted systems. Furthermore, the formation of polymeric structures is inhibited because intermolecular interactions are reduced. Alkyl‐ and aryl‐substituted cyclooctatetraenes were mainly used as ligands in the 1970s and 1980s. The vast majority of known complexes containing these ligands in the coordination sphere are uranium compounds. Since then the alkyl‐ and aryl‐substituted cyclooctatetraenes have been replaced almost exclusively in synthesis by silyl‐substituted ones. Complexes with silyl‐substituted cyclooctatetraenes are known for both 4 f and 5 f elements.