| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1625129 | Journal of Alloys and Compounds | 2008 | 6 Pages |
Abstract
We present in this study a new and one-step method allowing the preparation of an unprecedented family of stable half-lanthanidocenes. X-ray analysis shows that the isolated compounds all display the same ionic Ln–Mg bimetallic structure consisting of two anionic (CpR)Ln(BH4)3 species and one cationic Mg(THF)6 (CpR = C5Me5, Ln = Nd, 1a, Ln = La, 1b; CpR = C5H5, Ln = Nd, 2a; CpR = C5H2Ph3, Ln = Nd, 3a). Such complexes display high stability with respect to disproportionation in solution. Combined with dialkylmagnesium, neodymium complexes provide powerful catalysts for stereospecific isoprene polymerisation.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
M. Visseaux, P. Zinck, M. Terrier, A. Mortreux, P. Roussel,