Non-symmetrical ligands and catalyst systems thereof for ethylene oligomerisation to linear alpha olefins
申请人:——
公开号:US20020016425A1
公开(公告)日:2002-02-07
Non-symmetrical ligands of formula (I);
1
bis-aryliminepyridine MX
n
complexes comprising a non-symmetrical ligand of formula (I), wherein M is a metal selected from Fe or Co, n is 2 or 3, and X is halide, optionally substituted hydrocarbyl, alkoxide, amide, or hydride; [bis-aryliminepyridine MY
p
.L
n
+
][NC
−
]
q
complexes, comprising a non-symmetrical ligand of formula (I), wherein Y is a ligand which may insert an olefin, M is Fe or Co, NC
−
is a non-coordinating anion and p+q is 2 or 3, matching the formal oxidation of the metal atom M, L is a neutral Lewis donor molecule and n=0, 1, or 2; and processes for the production of alpha-olefins from ethylene, using said complexes.
式(I)的非对称配体;1-双芳基亚胺吡啶MXn配合物包括式(I)的非对称配体,其中M是选自Fe或Co的金属,n为2或3,X为卤素、可选择性取代的碳氢基、烷氧基、酰胺或氢化物;[双芳基亚胺吡啶MYp.Ln+][NC−]q配合物,包括式(I)的非对称配体,其中Y是可插入烯烃的配体,M为Fe或Co,NC−为非配位阴离子,p+q为2或3,与金属原子M的形式氧化状态相匹配,L为中性路易斯供体分子,n=0、1或2;以及使用所述配合物从乙烯中制备α-烯烃的方法。