Xigeng Zhou, Lixin Zhang, Chunqian Zhang
Aug 1, 2002
Citations
0
Influential Citations
11
Citations
Journal
Journal of Organometallic Chemistry
Abstract
Abstract Reactions of anhydrous lanthanide trichloride with one or two equivalent of tert -butyldimethylsilylcyclopentadienyl (Cp t ) potassium salt in THF afford mono( tert -butyldimethylsilylcyclopentadienyl)lanthanide dichloride complexes Cp t LnCl 2 (THF) 3 [Ln=Y( 1 ), Er( 2 )] and bis( tert -butyldimethylsilylcyclopentadienyl)lanthanide chlorides [Cp t 2 Ln(μ-Cl)] 2 [Ln=Gd( 3 ), Er( 4 ), Yb( 5 )], respectively. DyCl 3 reacts with KCp t in THF, followed by the treatment with two equivalents of C 5 H 5 Na to form the mixed-ring complex Cp t Cp 2 Dy(THF) ( 6 ). Reaction of 4 with LiNPr i 2 and subsequently with one equivalent of PhNCO in THF give the PhNCO insertion product Cp t 2 Er[OC(NPr i 2 )NPh](THF) ( 7 ). Complex 4 reacts with one equivalent of sodium benzothiazole-2-thiolate (NaSBT) to yield Cp t 2 Er(SBT)(THF) ( 8 ). Complexes 1 – 8 have been characterized by elemental analyses, infrared, 1 H-NMR and mass spectroscopies. The molecular structures of 3 and 8 were determined by single crystal X-ray diffraction.