Effects of Isomorphous Substitution on Photophysical and Magnetic Properties of Complexes [Ln_1- _xDy_x(MeDPQ)₂Cl₃] (Ln = Y³⁺, Ho³⁺, and Er³⁺).

ABSTRACT: This work encompasses the study of magnetic, optical, and structural properties of the coordination compounds [Ln(MeDPQ)₂Cl₃] (Ln ─ Ho³⁺, Er³⁺, Dy³⁺, and Y³⁺; MeDPQ - 2-methyldipyrido-[3,2-f:2',3'-h]-quinoxaline) and substituted complexes [Ln_{1- x}Dy_x(MeDPQ)₂Cl₃] (Ln = Ho³⁺, Er³⁺, and Y³⁺) based on them. Magnetic measurements within the range 5-300 K revealed single ion anisotropy in [Dy(MeDPQ)₂Cl₃], with the Curie-Weiss temperature θ being -3.69 ± 0.03 K. Complexes of Ho³⁺ and Er³⁺ exhibited f-f emission in the visible range, while the latter was also emissive in the NIR. Dilution of the Dy³

SUBMITTER: Zhernakov MA 

PROVIDER: S-EPMC12648457 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature