Citation: Hongdao LI, Shengjian ZHANG, Hongmei DONG. Magnetic relaxation and luminescent behavior in nitronyl nitroxide-based annuluses of rare-earth ions[J]. Chinese Journal of Inorganic Chemistry, ;2024, 40(5): 972-978. doi: 10.11862/CJIC.20230411 shu

Magnetic relaxation and luminescent behavior in nitronyl nitroxide-based annuluses of rare-earth ions

Taiyuan Institute of Technology, Department of Chemistry and Chemical Engineering, Taiyuan 030008, China

Corresponding author: Hongdao LI, lihong.dao@163.com
Received Date: 30 October 2023
Revised Date: 24 January 2024

Figures(8)

Employing the reaction of chiral nitronyl nitroxide radical and rare-earth ions, two 2p-4f hetero-spin meso complexes [Ln(hfac)₃((R)-MePP-Ph-NIT)]₂, where Ln=Eu (1) and Dy (2), hfac=hexafluoroacetylacetone; (R)-MePP-Ph-NIT=2-(4-((R)-tert-butyl-2-methylpiperazine-1-carboxylate)phenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide, have been assembled. In both complexes, two chiral radicals ligate to two Ln(Ⅲ) ions to produce a cyclic dinuclear structure. Complex 1 shows the characteristic fluorescence emission of the Eu(Ⅲ) ion. In complex 2, the frequency-dependent out-of-phase susceptibility signals connected with magnetic relaxation confirm single-molecule magnet (SMM) behavior.
- nitronyl nitroxide,
- single-molecule magnet,
- rare-earth ion,
- 2p-4f hetero-spin
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