Effect of Magnetic Anisotropy on the ¹H NMR Paramagnetic Shifts and Relaxation Rates of Small Dysprosium(III) Complexes.

ABSTRACT: We present a detailed analysis of the ¹H NMR chemical shifts and transverse relaxation rates of three small Dy(III) complexes having different symmetries (C₃, D₂ or C₂). The complexes show sizeable emission in the visible region due to ⁴F_9/2 → ⁶H_J transitions (J = 15/2 to 11/2). Additionally, NIR emission is observed at ca. 850 (⁴F_9/2 → ⁶H_7/2), 930 (⁴F_9/2 → ⁶H_5/2), 1010 (⁴F_9/2 → ⁶F_9/2), and 1175 nm (⁴F_9/2 → ⁶F_7/2). Emission quantum yields of 1-2% were determined in aqueous solutions. The emission lifeti

SUBMITTER: Harriswangler C 

PROVIDER: S-EPMC10481378 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature