Non-metallocene organometallic complexes and related methods and systems
AssigneeCalifornia Institute of Technology
InventorsTheodor Agapie, Suzanne Rose Golisz, Daniel Tofan, John E. Bercaw
Life of this patent
Estimating the term…
Abstract
A non-metallocene organometallic complex comprising a tridentate ligand and a metal bonded to a tridentate ligand, wherein two substituted aryl groups in the tridentate ligand are connected to a cyclic group at the ortho position via semi-rigid ring-ring linkages, and selected so to provide the resulting non-metallocene organometallic complex with a CS geometry, a C1 geometry, a C2 geometry or a C2v geometry. Method for performing olefin polymerization with a non-metallocene organometallic complex as a catalyst, related catalytic systems, tridentate ligand and method for providing a non-metallocene organometallic complex
Claims25
A non-metallocene organometallic complex comprising
- a tridentate ligand;
- a metal bonded to the tridentate ligand,
- the tridentate ligand comprising a first substituted aryl group, a second substituted aryl group and a cyclic group, each of the first and second substituted aryl groups substituted with at least an anionic donor, each of the first and second substituted aryl group connected to the cyclic group via semi-rigid ring-ring linkages at the ortho position with respect to the anionic donor,
- wherein the metal, the first substituted aryl group, the second substituted aryl group, and the cyclic group are selected to provide the resulting non-metallocene organometallic complex with a Cs geometry, a C1 geometry, a C2 geometry or a C2v geometry
A process for preparation of a non-metallocene organometallic complex, the process comprising
- selecting a first substituted aryl group, a second substituted aryl group and a cyclic group. to provide the resulting non-metallocene organometallic complex with a CS geometry, a C1 geometry, a C2 geometry or a C2v geometry, each of the first and second substituted aryl groups substituted with at least an anionic donor;
- contacting the selected first substituted aryl group, second substituted aryl group and a cyclic group to provide a tridentate ligand, the tridentate ligand comprising a first substituted aryl group, a second substituted aryl group and a cyclic group, each of the first and second substituted aryl group connected to the cyclic group via semi-rigid ring-ring linkages at the ortho position with respect to the anionic donor;
- and
- contacting the tridentate ligand with a metal to provide a non-metallocene organometallic complex, thus obtaining a non-metallocene organometallic complex with a CS geometry, a C1 geometry, a C2 geometry or a C2v geometry,
A tridentate ligand comprising
- a first substituted aryl group,
- a second substituted aryl group and
- a cyclic group,
- each of the first and second substituted aryl groups substituted with at least an anionic donor, each of the first and second substituted aryl group connected to the cyclic group via semi-rigid ring-ring linkages at the ortho position with respect to the anionic donor, wherein the first substituted aryl group, the second substituted aryl group, and the cyclic group are selected to provide a non-metallocene organometallic complex comprising the tridentate ligand with a CS geometry, a C1 geometry, a C2 geometry or a C2v geometry.
Dependencies are inferred from the claim text.