title: Cobalt(II) amido complexes derived from a monodentate arylamido ligand featuring a highly electron-withdrawing C6F5 substituent.
abstract: A series of cobalt(ii) complexes of a highly electron-withdrawing amido ligand, [N(C6F5)(C6H3Pr(i)2-2,6)](-) (L), were synthesized and structurally characterized. Mononuclear [CoL(Cl)(TMEDA)] (3) and heterobimetallic [CoL2(μ-Cl)Li(THF)3] (4) were obtained by direct metathetical reactions of anhydrous CoCl2 with one molar equivalent of [LiL(TMEDA)] (1) (TMEDA = Me2NCH2CH2NMe2) and [LiL(THF)3] (2), respectively. Complex 3 underwent facile ligand substitution reactions with LiMe and NaN3, yielding the corresponding mixed-ligand complexes [CoL(X)(TMEDA)] (X = Me 5, N36). Treatment of 3 with NaOMe led to the heterobimetallic complex [CoL2(μ-OMe)Na(TMEDA)] (7). The solid-state structures of complexes 1-7 were established by X-ray diffraction analysis.
authors.affiliation: Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China. hklee@cuhk.edu.hk.
authors.forename: Shuang
authors.initials: S
authors.lastname: Yao
authors.forename: Dennis Yiu Sun
authors.initials: DY
authors.lastname: Tam
authors.forename: Pak Shing
authors.initials: PS
authors.lastname: Cheung
authors.forename: Chi-Keung
authors.initials: CK
authors.lastname: Lam
authors.forename: Pei
authors.initials: P
authors.lastname: Guo
authors.forename: Sik Lok
authors.initials: SL
authors.lastname: Lam
authors.forename: Hung Kay
authors.initials: HK
authors.lastname: Lee