A transition metal compound useful as a component of a catalyst for olefin polymerization and a highly active polymerization catalyst capable of producing a high molecular weight olefin polymer. The catalyst for olefin polymerization contains a transition metal compound represented by formula (1)
wherein M is a metal element of the groups 3 to 10 of the Periodic Table or a lanthanoid; X represents a ligand having a sigma bond for binding to M, and when X is plural, the Xs may be the same or different; Y represents a Lewis base, and when Y is plural, the Ys may be the same or different; A
1
and A
2
represent crosslinking groups and at least one thereof has a boron or phosphorous atom as a crosslinking atom; q is an integer of 1 to 5 and equals [(the valance of M)−2]; r is an integer of 0 to 3; and Q
1
and Q
2
have a specific structure, and Q
1
and Q
2
may be different or the same.
一种过渡
金属化合物,可用作烯烃聚合催化剂的组分和高活性聚合催化剂,能够产生高分子量的烯烃聚合物。烯烃聚合催化剂包含由式(1)表示的过渡
金属化合物,其中M为周期表3到10族元素或
镧系元素的
金属元素;X表示具有sigma键与M结合的
配体,当X为复数时,X可以相同或不同;Y表示路易斯碱,当Y为复数时,Y可以相同或不同;A1和A2表示交联基团,其中至少一个具有
硼或
磷原子作为交联原子;q为1到5的整数,等于(M的价-2);r为0到3的整数;Q1和Q2具有特定结构,Q1和Q2可以不同或相同。