Thermally Stable Terbium(II) and Dysprosium(II) Bis-amidinate Complexes.

ABSTRACT: The thermostable four-coordinate divalent lanthanide (Ln) bis-amidinate complexes [Ln(Piso)₂] (Ln = Tb, Dy; Piso = {(NDipp)₂C^tBu}, Dipp = C₆H₃ⁱPr₂-2,6) were prepared by the reduction of parent five-coordinate Ln(III) precursors [Ln(Piso)₂I] (Ln = Tb, Dy) with KC₈; halide abstraction of [Ln(Piso)₂I] with [H(SiEt₃)₂][B(C₆F₅)] gave the respective Ln(III) complexes [Ln(Piso)₂][B(C₆F₅)]. All complexes were characterized by X-ray diffraction, ICP-MS, elemental analysis, SQUID magnetometry, UV-vis-NIR, ATR-IR, NMR, and EPR spectroscopy and ab initio CASSCF-SO calculations. These data consistently show that

SUBMITTER: Jin PB 

PROVIDER: S-EPMC10755703 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature