Issue 22, 2023

Circularly polarized luminescence and magneto-optic effects from chiral Dy(iii) single molecule magnets

Abstract

A new pair of multifunctional Zn(II)–Dy(III) enantiomers based on the chiral Schiff-base ligands [R,R-ZnLDy(H2O)(NO3)3] (1R2R-ZnDy) and [S,S-ZnLDy(H2O)(NO3)3] (1S2S-ZnDy) (H2L = phenol, 2,2′-[[(1R,2R/1S,2S)-1,2-diphenyl-1,2-ethanediyl]bis[(E)-nitrilomethylidyne]]bis[6-methoxy]) was synthesized and characterized. Magnetic studies indicate that 1R2R-ZnDy behaves as a single-molecule magnet. Enantiomers 1R2R-ZnDy and 1S2S-ZnDy show chiroptical activity and circularly polarized luminescence in the N,N-dimethylformamide (DMF) solution. The chiral Zn(II)–Dy(III) complexes display magnetic circular dichroism signals at room temperature. Accordingly, these complexes will inspire intriguing research on single-molecule magnets with circular polarization of luminescence activity and magneto-optic effects, which will give new clues to design multifunctional molecular magnetic materials.

Graphical abstract: Circularly polarized luminescence and magneto-optic effects from chiral Dy(iii) single molecule magnets

Supplementary files

Article information

Article type
Paper
Submitted
28 Feb 2023
Accepted
29 Apr 2023
First published
04 May 2023

Dalton Trans., 2023,52, 7646-7651

Circularly polarized luminescence and magneto-optic effects from chiral Dy(III) single molecule magnets

H. Huang, R. Sun, X. Wu, Y. Liu, J. Zhan, B. Wang and S. Gao, Dalton Trans., 2023, 52, 7646 DOI: 10.1039/D3DT00625E

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