A bridged metallocene compound of formula (I)
wherein:
M is an atom of a transition metal selected from those belonging to group 3, 4, or to the lanthanide or actinide groups in the Periodic Table of the Elements;
X, equal to or different from each other, is a hydrogen atom, a halogen atom, a R, OR, OSO
2
CF
3
, OCOR, SR, NR
2
or PR
2
group; L is a divalent bridging group;
R
1
and R
2
, equal to each other, are C
1
-C
40
hydrocarbon radical; R3 is hydrogen or a are C
1
-C
40
hydrocarbon radical and W is an aromatic 5 or 6 membered ring.
化合物的简式为(I),其中:
M是周期表元素中属于3、4组或
镧系或
锕系元素的过渡
金属原子;
X可以相同或不同,是氢原子、卤素原子、R、OR、OSO2CF3、OCOR、SR、NR2或PR2基团;
L是二价桥接基团;
R1和R2相同,是C1-C40碳氢基团;
R3是氢原子或C1-C40碳氢基团;
W是芳香性5或6元环。