Patent ID: 6100414
Filing Date: 2000-08-08
Classification: C07F,C08F,Y10S

Abstract:
A cyclopentadienyl transition metal compound of the formula: ##STR5## wherein, M is a Group IV metal selected from the group consisting of titanium, zirconium and hafnium;R' is each independently selected from the group consisting of hydrogen, hydrocarbyl groups, silyl groups, germyl groups, stannyl groups, and groups wherein two or more R' groups can be joined to form a ring;L is a covalent bridging group containing a Group 14 element selected from the group consisting of carbon, silicon, germanium, and tin;E is a Group 15 element selected from the group consisting of nitrogen, phosphorous, arsenic, and antimony;Y is an anion that results in the compound being hydrocarbon soluble;R is each independently selected from the group consisting of hydrocarbyl groups, silyl groups, groups wherein two R groups can be joined to form a ring, and groups wherein an L group and an R group can be joined to form a ring;X is each independently selected from the group consisting of hydrogen, halides, hydrocarbyl groups, silyl groups, alkoxides, aryloxides, amides, arylamides, phosphides, arylphosphides, carboxylates, and sulfonates;D is a neutral Lewis base;m is one, two, or three, depending on the valency and oxidation state of M;n is 0, 1, or 2;o is 1;p is 1 or 2;q is 1 or 2; and.ltoreq. q.ltoreq.p.ltoreq.o.ltoreq.2.