Patent ID: 6013819
Filing Date: 2000-01-11
Classification: C07F,C08F,C08L,Y10S

Abstract:
A metal coordination complex of the formula: ##STR6## wherein: (a) M is selected from the group consisting of titanium, hafnium, and zirconium;(b) Cp* is selected from the group consisting of indenyl, tetrahydroindenyl, fluorenyl, octahydrofluorenyl, cyclopentadienyl, and R-substituted cyclopentadienyl bound in an .eta..sup.5 bonding mode to M;(c) X is, independently each occurrence, an anionic ligand group selected from the group consisting of hydride, halide, alkyl of up to 30 carbon atoms, alkoxy having up to a total of 30 carbon and oxygen atoms, cyanide, azide, acetylacetonate, aryl of up to 30 carbon atoms, aryloxy having up to a total of 30 carbon and oxygen atoms, norbornyl, and benzyl;(d) n is 1;(e) Y is NR"" or PR"";(f) Z is CR.sub.2 *, CR.sub.2 *CR.sub.2 *, SiR.sub.2 *, or SiR.sub.2 *SiR.sub.2 *;(g) R is selected from the group consisting of alkyl having 1 to 20 carbon atoms, cyano, norbornyl, benzyl, aryl of up to 20 carbon atoms, (R').sub.3 Si, and (R').sub.3 Ge;(h) R' is selected from the group consisting of C.sub.1 -C.sub.20 alkyl and aryl of up to 20 carbon atoms;(i) R"" is selected from the group consisting of C.sub.1 -C.sub.20 alkyl, aryl of up to 20 carbon atoms, benzyl, haloaryl having up to a total of 20 carbon and halogen atoms, 2-methoxyphenyl, 4-methoxyphenyl, and norbornyl; and(j) R* is selected from the group consisting of hydrogen, C.sub.1 -C.sub.2 alkyl, haloalkyl having up to a total of 20 carbon and halogen atoms, aryl of up to 20 carbon atoms, and haloaryl having a total of up to 20 carbon and halogen atoms.