This invention relates to a compound represented by the formula:
1
wherein M is selected from groups 3-11 of the periodic table;
2
L
1
represents a formal anionic ligand, L
2
represents a formal neutral ligand, a is an integer greater than or equal to 1; b is greater than or equal to 0; c is greater than or equal to 1, E is nitrogen or phosphorus, Ar
0
is arene, R
1
-R
4
are, each independently, selected from hydrogen, hydrocarbyl, substituted hydrocarbyl or functional group, provided however that R
3
and R
4
do not form a naphthyl ring, N is nitrogen and O is oxygen.
This invention further relates to a process to oligomerize and/or polymerize unsaturated monomers using the above compositions, optionally combined with an activator.
本发明涉及一种由以下公式表示的化合物:1其中M被选择为周期表的3-11群组之一;2L1代表正离子
配体,
L2代表中性
配体,a是大于或等于1的整数;b大于或等于0;c大于或等于1,E为氮或
磷,Ar0为芳环,R1-R4分别选自氢,烃基,取代烃基或功能基团,但R3和R4不形成
萘环,N为氮,O为氧。本发明还涉及一种使用上述组合物(可选地与活化剂结合)寡聚和/或聚合不饱和单体的方法。