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ИСТИНА |
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ИСТИНА ФИЦ ПХФ и МХ РАН |
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Heterocyclic amido transition metal complexes are disclosed for use in alkene polymerization to produce polyolefins, preferably multimodal polyolefins. The heterocyclic amido transition metal complexes are formed by the chelation of a tridentate dianionic heterocyclic amido ligand to a group 3, 4, or 5 transition metal, where the tridentate ligand coordinates to the metal forming a five-membered ring and an eight-membered ring.