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- W4293104530 abstract "The synthesis and characterization of new zirconium permethylpentalene (form)amidinate complexes are described: Pn*Zr{N(Dipp)2CH}Cl (1), Pn* = η8-C8Me6 and Dipp = 2,6-iPr-C6H3; [Pn*Zr{N(p-tol)2CH}Cl]2 (2), p-tol = 4-Me-C6H4; [Pn*Zr{N(iPr)2CMe}Cl]2 (3); Pn*Zr{N(iPr)2CPh}Cl (4); Pn*Zr{N(4-Me-C6H4)2CH}2 (5); [Pn*Zr{N(iPr)2CCH2}]2 (6); and Pn*Zr{N(iPr)2CPh}(O-2,6,-Me-C6H3) (7). The monohalide derivatives 1–4 demonstrate considerable structural diversity as the nature of the (form)amidinate-supporting ligand is changed. While complexes with acidic backbone protons proved susceptible to deprotonation using mild bases, those without underwent straightforward salt metathesis reactions with alkali metal salts, leading to complexes [Pn*Zr{N(iPr)2CCH2}]2 (6) and Pn*Zr{N(iPr)2CPh}(O-2,6-Me-C6H3) (7). Preliminary slurry-phase ethylene polymerization studies are also reported using complexes 2, 4, 5, and 7 to gain a direct comparison to the highly active, yet electronically saturated, Pn*Zr(CpR)Cl catalyst family." @default.
- W4293104530 created "2022-08-26" @default.
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- W4293104530 date "2022-08-25" @default.
- W4293104530 modified "2023-10-16" @default.
- W4293104530 title "Zirconium Permethylpentalene Amidinate Complexes: Characterization, Bonding, and Olefin Polymerization Catalysis" @default.
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- W4293104530 doi "https://doi.org/10.1021/acs.organomet.2c00214" @default.
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