1. A method of purifying an organometallic compound comprising i) providing a mixture comprising a) an organometallic compound
chosen from unsymmetrical dimethyl hydrazine and a compound of the formula R1R2n−1M1 wherein R1 is chosen from (C1-C20)alkyl, (C2-C12)dialkylamino, (C1-C12)alkylamino(C1-C12)alkyl, di(C1-C20)alkylamino(C1-C12)alkyl, (C2-C20)alkenyl, (C2-C20)alkynyl and aryl; each R2 is independently chosen from hydrogen, (C1-C20)alkyl, (C2-C12)dialkylamino, (C1-C12)alkylamino(C1-C12)alkyl, di(C1-C20)alkylamino(C1-C12)alkyl, (C2-C20)alkenyl, (C2-C20)alkynyl, aryl and halogen; M1 is a Group IIA to Group VIA metal; and n is the valence of M1; and b) a purifying composition comprising an alkyl-metal compound of the formula R3xR43-xM2 wherein R3 is a (C1-C20)alkyl; each R4 is independent chosen from hydrogen and halogen; M2 is a Group IIIA metal; and x is an integer from 1-3; and a catalyst compound; and ii) heating the mixture.
|