申请人:——
公开号:US20040087436A1
公开(公告)日:2004-05-06
Novel complexes having the formula (I) are disclosed, wherein M is a Group 6 metal and T is its oxidation state; X represents an atom or group covalenty or ionically bonded to M; b is the valency of the atom or group X; L is a group datively bound to M, and n is from 0 to 4; Z is oxygen or sulphur; A
1
to A
3
are each independently N or P or CR, with the provisio that at least one is CR; R
1
is a polycyclic hydrocarbyl group; Q is CR
5
, PR
5
R
5
or N; each R and R
5
to R
7
are all independently selected from hydrogen, halogen, hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl or SiR′
3
where each R′ is independently selected from hydrogen, halogen, hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl, substituted heterohydrocarbyl, and any two or more of each R and R
5
to R
7
may be linked to form cyclic substituents. These complexes have utility as catalysts for the polymerisation of 1-olefins.
1
本发明揭示了具有式(I)的新型配合物,其中M是第6族金属,T是其氧化态;X表示与M共价键或离子键结合的原子或基团;b是原子或基团X的价;L是与M成为双电子键的基团,n为0至4;Z为氧或硫;A1至A3各自独立地为N或P或CR,但至少有一个为CR;R1是多环烃基团;Q为CR5,PR5R5或N;每个R和R5至R7都是独立选择的氢、卤素、烃基、取代烃基、杂烃基或SiR′3,其中每个R′独立地选择为氢、卤素、烃基、取代烃基、杂烃基、取代杂烃基,任意两个或两个以上的R和R5至R7可以连接形成环状取代基团。这些配合物在1-烯烃聚合催化剂方面具有实用性。