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US 2014/0155562 A1Published application
Homoleptic rare earth triaryl complexes
AssigneeRockwood Lithium GmbH
InventorsOliver Thomas, Jörg Sundermeyer
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Abstract
The invention relates to chelate-stabilized homleptic triaryl compounds based on phenylphosphoranes, to methods for preparing same and to the use thereof as catalysts. According to the invention, the object is achieved by homleptic rare earth triaryl complexes of the general formula (I), where SE=Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb or Lu; X=O, CRR′; R1, R2=phenyl; R, R′=mutually independently H, alkyl with n=10 C atoms, phenyl or trimethylsilyl.
Claims16
1-16. (canceled)
A homoleptic rare earth triaryl complex of formula 1
- wherein
- RE=Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb or Lu;
- X=O, CRR;
- R1,R2=phenyl;
- R, R′=independently of each other, H, alkyl with n=1-10 carbon atoms, phenyl or trimethylsilyl.
2 more elements
Dependencies are inferred from the claim text.