The ligand hyperfine interaction with rare earth ions. III. 19F NMR single-crystal study of ErF3

Exploring the Sm1–xCaxF3–x Tysonite Solid Solution as a Solid-State Electrolyte: Relationships between Structural Features and F– Ionic Conductivity

“…Early 19 F wide-line NMR spectra of polycrystalline rare-earth fluorides REF 3 (RE = La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Yb) − were reported, with two distinct resolved lines, corresponding to the two inequivalent fluorine sites of orthorhombic HoF 3 , ErF 3 , and YbF 3 . 19 F NMR spectra of REF 3 single crystals (RE = Ce, Tb and Ho, Nd and Pr, Er) with distinct resolved lines, corresponding to the inequivalent fluorine sites, were also reported. Nevertheless, due to the expected substantial 19 F line broadenings and NMR shifts in paramagnetic systems, strengthened by the large 19 F gyromagnetic ratio, the reported 19 F MAS NMR spectra of paramagnetic fluorides (CeF 3 , NdF 3 , and SmF 3 ) are very scarce .…”

“…Early 19 F wide-line NMR spectra of polycrystalline rare-earth fluorides REF 3 (RE = La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Yb) − were reported, with two distinct resolved lines, corresponding to the two inequivalent fluorine sites of orthorhombic HoF 3 , ErF 3 , and YbF 3 . 19 F NMR spectra of REF 3 single crystals (RE = Ce, Tb and Ho, Nd and Pr, Er) with distinct resolved lines, corresponding to the inequivalent fluorine sites, were also reported.…”