This invention relates to a transition metal catalyst compound represented by the formula: LMX
2
or (LMX
2
)
2
wherein each M is independently a Group 7 to 11 metal, preferably a Group 7, 8, 9, or 10 metal; each L is, independently, a tridentate or tetradentate neutrally charged ligand that is bonded to M by three or four nitrogen atoms, (where at least one of the nitrogen atoms is a central nitrogen atom and at least two of the nitrogen atoms are terminal nitrogen atoms), and at least two terminal nitrogen atoms are substituted with one C
3
-C
50
hydrocarbyl and one hydrogen atom or two hydrocarbyls wherein at least one hydrocarbyl is a C
3
-C
50
hydrocarbyl, and the central nitrogen atom is bonded to three different carbon atoms or two different carbon atoms and one hydrogen atom; X is independently a monoanionic ligand, or two X may join together to form a bidentate dianionic ligand.
本发明涉及一种由式表示的过渡
金属催化剂化合物:LMX
2
或(LMX
2
)
2
其中每个 M 独立地是 7 至 11 族
金属,最好是 7、8、9 或 10 族
金属;每个 L 独立地是三叉或四叉带中性电荷的
配体,该
配体通过三个或四个氮原子与 M 结合(其中至少一个氮原子是中心氮原子,至少两个氮原子是末端氮原子),且至少两个末端氮原子被一个 C
3
-C
50
烃基和一个氢原子或两个烃基取代,其中至少一个烃基为 C
3
-C
50
烃基,且中心氮原子与三个不同的碳原子或两个不同的碳原子和一个氢原子键合;X 独立地为单阴离子
配体,或两个 X 可连接在一起形成双齿二阴离子
配体。