Light Lanthanide Metallocenium Cations Exhibiting Weak Equatorial Anion Interactions.
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ABSTRACT: As the dysprosocenium complex [Dy(Cpttt )2 ][B(C6 F5 )4 ] (Cpttt =C5 H2 tBu3 -1,2,4, 1-Dy) exhibits magnetic hysteresis at 60 K, similar lanthanide (Ln) complexes have been targeted to provide insights into this remarkable property. We recently reported homologous [Ln(Cpttt )2 ][B(C6 F5 )4 ] (1-Ln) for all the heavier Ln from Gd-Lu; herein, we extend this motif to the early Ln. We find, for the largest LnIII cations, that contact ion pairs [Ln(Cpttt )2 {(C6 F5 -κ1 -F)B(C6 F5 )3 }] (1-Ln; La-Nd) are isolated from reactions of parent [Ln(Cp
SUBMITTER: Liu J
PROVIDER: S-EPMC6637382 | biostudies-literature | 2019 Jun
REPOSITORIES: biostudies-literature
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