| abstract |
Organometallic aluminum compounds of the general formula (I)whereX1 is NH, NH2*, NH-A*, N-A, N(A)2*, O, OA*, O-Aryl*, S, SA*, P, P(A)2* or a single bond,X2 is NH, N-A, O, S, PA or X1 coordinated to Al(R1)3, or a single bond,R1 is H; Hal if n=0; A which may be covalently bound to Al; Si(A)3 if X1=O,R2 is A or divalent aryl groups defined note particularly below or divalent unsaturated aliphatic groups defined more particularly below,R3 and R4 are, independently of one another, a bond or R2 or Si(A)3 or Si(A)2,Z1 is a bond or H bound to R2,Z2 is a bond or H bound to R2 or R3,A is branched or unbranched C1-C7-alkyl, C1-C7-alkylidene or C1-C7-alkenylidene,Aryl is phenyl, naphthyl,Hal is F, Cl,and, independently of one another,n, m, p and l are 0 or 1 and q is 1 or 2, where SIGMAl+m+n>=3. |