A series of Al(III) compounds containin
g the C
6F
5-substituted
![](/ima<font color=)
ges/
gifchars/beta2.
gif" BORDER=0 ALIGN="middle">-diketiminate li
gands LAlMeCl (
2), LAlMe
2 (
3), LAlMeI(
4), and LAlBr
2 (
5) (L = HC[(CMe)(NC
6F
5)]
2) were synthesized and characterized. The hydrolysis of
2 and
4 in thepresence of 1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene as the hydro
gen halide acceptor both lead to (LAlMe)
2(
![](/ima<font color=)
ges/entities/m
gr.
gif">-O) (
6), a methylalumoxane derivative, which is the first hydrolysis product with the
general formula of (RAlMe)
nO.A comparison of the hydrolysis products of
2 and
4 with that of L'AlMeCl (L' = HC[(CMe)(NAr)]
2, Ar = 2,6-
iPr
2C
6H
3) shows that with the C
6F
5-substituted
![](/ima<font color=)
ges/
gifchars/beta2.
gif" BORDER=0 ALIGN="middle">-diketiminate li
gand, it was not possible to
generate LAlMe(OH).This is obviously due to the stron
ger Br&
ouml;nsted acidity of the proton and the smaller size of the C
6F
5 group in thiscompound compared to that of the correspondin
g 2,6-
iPr
2C
6H
3 derivative.