Slow magnetic relaxation in luminescent mononuclear dysprosium(iii) and erbium(iii) pentanitrate complexes with the same LnO10 coordination geometry

Abstract

Two isostructural mononuclear Dy and Er pentanitrate complexes with an LnO₁₀ coordination geometry have been synthesized and studied by single-crystal X-ray diffraction, luminescence and magnetic measurements. Slow relaxation of the magnetization behavior is simultaneously observed in two complexes with the same coordination environment, despite the different types of the 4f-shell electron distribution. Meanwhile, both complexes exhibit the respective characteristic Ln(III) photoluminescence.