Structure Dynamics in Novel ansa ‐Metallocenes of Niobium and Tantalum
1996; Wiley; Volume: 35; Issue: 17 Linguagem: Inglês
10.1002/anie.199619511
ISSN1521-3773
AutoresWolfgang A. Herrman, Walter Baratta, Eberhardt Herdtweck,
Tópico(s)Coordination Chemistry and Organometallics
ResumoTwo of the three dimethylamido ligands in 1 (M = Nb, Ta) can be readily replaced by doubly deprotonated 2,2-bis(cyclopentadienyl)propane to give 2, which undergoes an η1: η5 ⇌ η5: η1 coordination exchange equilibrium with a rather low activation barrier, leading to the (S, R)/(R,S) racemate.
Referência(s)