Ferrocenylaluminum-pyridine adducts, lithium tetra(ferrocenyl)alanate, and the molecular structure of tri(ferrocenyl)aluminum-pyridine
摘要:
Aluminum compounds with up to four ferrocenyl groups (Fc) linked to aluminum were prepared and characterized in solution by NMR spectroscopy (H-1, C-13, Al-27 NMR), and in one case, tri(ferrocenyl)aluminum-pyridine Fc(3)Al-py in the solid state by X-ray structural analysis. The attempts to stabilize the unsymmetrical species R2Al-Fc and RAl(Fc)(2) (R = Me, Et) as the pyridine adducts were partially successful, although it proved difficult to suppress the formation of species containing Al-Cl functions completely. (C) 2009 Elsevier B. V. All rights reserved.