Synthesis, Structure, and Luminescence of Mixed-Ligand Lanthanide Trifluoroacetates.

ABSTRACT: A series of new mixed-ligand lanthanide trifluoroacetates of formula Ln(4-cpno)(tfa)₃(H₂O)·H₂O (Ln = Sm, Eu, Gd, Tb, Dy; 4-cpno = 4-cyanopyridine N-oxide; tfa = trifluoroacetate) is reported. Trifluoroacetates were synthesized as chemically pure polycrystalline solids and their crystal structures were probed using single-crystal and powder X-ray diffraction. Ln(4-cpno)(tfa)₃(H₂O)·H₂O solids make up an isostructural series in which LnO₈ polyhedra are bridged by 4-cpno to form edge-sharing dimers. Trifluoroacetato connects these dimers to yield chains whose three-dimensional packing is governed by hydrogen bonds established between 4-cpno, trifluoroacetato, and water. 4-cpno serves as an efficient sensitizer

SUBMITTER: Munasinghe HN 

PROVIDER: S-EPMC9652486 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature