A transition metal compound represented by the formula, [(CpR
1
m
)(CO)
2
M
1
][M
2
(CO)
2
(CpR
2
n
)], wherein Cp is a cyclopentadienyl ring, R
1
and R
2
are independently of each other a hydrocarbyl group having 1 to 20 carbon atoms, and each of at least one R
1
and at least one R
2
is a hydrocarbyl group having 5 to 20 carbon atoms, m and n are independently of each other an integer of 1 to 5, and M
1
and M
2
are independently of each other a transition metal atom of the group 8 in the periodic table of elements; a polymerization-initiator system comprising said transition metal compound; and a process for producing a polymer in the presence of the polymerization-initiator system.
一个由该公式表示的过渡
金属化合物,[(CpR1m)(CO)2M1][M2(CO)2(CpR2n)],其中Cp是一个
环戊二烯环,R1和R2是独立的烃基团,含有1至20个碳原子,至少一个R1和至少一个R2是含有5至20个碳原子的烃基团,m和n是独立的1至5的整数,M1和M2是元素周期表中8族的过渡
金属原子;包括所述过渡
金属化合物的聚合物化
引发剂系统;以及在聚合物化
引发剂系统存在的情况下生产聚合物的过程。