Tetrahydro-as-indacenyl catalyst composition, catalyst system, and processes for use thereof
申请人:ExxonMobil Chemical Patents Inc.
公开号:US09803037B1
公开(公告)日:2017-10-31
This invention relates to a compound represented by the formula: TyLAMXn-2 wherein: A is a substituted or unsubstituted tetrahydro-as-indacenyl group bonded to M; L is substituted or unsubstituted monocyclic or polycyclic arenyl ligand or monocyclic or polycyclic heteroarenyl ligand bonded to M; M is a group 3, 4, 5, or 6 transition metal (preferably group 4); T is a bridging group bonded to L and A; y is 0 or 1, indicating the absence or presence of T; X is a leaving group, typically a univalent anionic ligand, or two Xs are joined and bound to the metal atom to form a metallocycle ring, or two Xs are joined to form a chelating ligand, a diene ligand, or an alkylidene; n is the oxidation state of M and is 3, 4, 5, or 6.
这项发明涉及一种由以下公式表示的化合物:TyLAMXn-2,其中:A是与M结合的取代或未取代的四氢-茚基苯基基团;L是与M结合的取代或未取代的单环或多环芳基配体或单环或多环杂芳基配体;M是3、4、5或6族过渡金属(优选为4族);T是与L和A结合的桥联基团;y为0或1,表示T的存在或不存在;X是一个离去基团,通常是一个一价阴离子配体,或者两个X结合并与金属原子结合形成金属环,或者两个X结合形成螯合配体、二烯配体或烷基亚铁;n是M的氧化态,为3、4、5或6。