Related Experiment Video
Updated: Mar 30, 2026

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
Published on: June 9, 2023
A Dy2 single-molecule magnet with benzoate anions and phenol-O(-) bridging groups
Hongshan Ke1, Sheng Zhang, Xin Li
1Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi 710069, People's Republic of China. sanpingchen@126.com.
Abstract:
A Dy2 single-molecule magnet, namely [Dy2(H3L)2(PhCOO)4]·4H2O (1), was obtained from the reaction of Dy(PhCOO)3 with 1,5-bis(2-hydroxy-3-methoxybenzylidene)carbonohydrazide (H4L). Each Dy(III) ion is located in the chelating pocket [DyO8N] formed by the carboxyl-O, phenol-O, carbohydrazide-O and carbohydrazide-N, forming a tricapped trigonal prism configuration. The Dy(III) centers are bridged by the benzoate anions with μ2:η(1),η(2) coordination mode and the phenol-O(-) groups in the form of μ1:η(2), respectively. The appearance of frequency-dependent out-of-phase (χ''M) signals indicates that 1 displays single-molecule magnet (SMM) behaviour. Fits of the ac data gave an energy barrier (Ueff) of 42.7 K with a pre-exponential factor (τ0) of 1.31 × 10(-7) s. The structure-property relationship of some selected Dy2 paradigmatic compounds was further discussed.
Related Concept Videos
Valence Bond Theory
π Electron Effects on Chemical Shift: Overview
Colors and Magnetism
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
π Electron Effects on Chemical Shift: Aromatic and Antiaromatic Compounds
EDTA: Chemistry and Properties

