Synthesis and structural characterization of Group 14 complexes containingtwo {9-[2-(dimethylamino)ethyl]fluorenyl-} ligands and a unique coupling product

Authors
Kemp, RA Chen, LF Guzei, I Rheingold, AL
Citation
Ra. Kemp et al., Synthesis and structural characterization of Group 14 complexes containingtwo {9-[2-(dimethylamino)ethyl]fluorenyl-} ligands and a unique coupling product, J ORGMET CH, 596(1-2), 2000, pp. 70-76
Citations number
21
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF ORGANOMETALLIC CHEMISTRY
ISSN journal
0022328X → ACNP
Volume
596
Issue
1-2
Year of publication
2000
Pages
70 - 76
Database
ISI
SICI code
0022-328X(20000229)596:1-2<70:SASCOG>2.0.ZU;2-G
Abstract
Reaction of two equivalents of {9-[2-(dimethylamino)ethyl]fluorenyl}lithium (Fl(N)Li) with either Me2GeCl2 or Me2SnCl2 leads cleanly to the new compou nds (Fl(N))(2)MMe2, where M = Ge, Sn. These new complexes are the first com pounds that contain multiple Fl(N) ligands which have been characterized by X-ray diffraction. Attempts to prepare the analogous Pb compound using Et2 PbCl2 were not successful, yielding instead a product where the two Fl(N) l igands have coupled. Structural characterization of the coupled product is presented. Neither of the main-group complexes showed significant activity for the polymerization of propylene using either MAO or BARF salts as activ ators. (C) 2000 Elsevier Science S.A. All rights reserved.