Related Experiment Video
Updated: May 12, 2026

Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
Published on: June 9, 2023
A dysprosium alkylidene single molecule magnet
Yin-Cong Kong1, Zi Yang1, Yi Liu1
1School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, P. R. China. wangchen0@whut.edu.cn.
Abstract:
A dysprosium alkylidene complex, supported by a β-diketiminato-based tridentate ligand and alkylidene ligand [C(SiMe3)PPh2Se]2-, was synthesized and characterized. It exhibited the shortest DyC bond length of 2.266(3) Å to date. Magnetic measurements indicated that it was an SMM with Ueff of 305 K. Comparing its molecular magnetism and structure with those of the other two dysprosium complexes in the synthetic routine, the dysprosium alkylidene SMM benefited much from the DyC bond. Ab initio calculation revealed high crystal-field axiality despite low symmetry. It showed strong anisotropy at ground states and first excited states. Relaxation occurred through the second excited states theoretically. Our data indicated that building dysprosium complexes with one Dy-ligand multiple bond is a feasible strategy to maintain uniaxial magnetic anisotropy for Dy-SMMs.
Related Concept Videos
Diamagnetism
Diamagnetism was discovered by Anton Brugmans in 1778 when he observed that bismuth gets repelled by magnetic fields, thus theorizing that diamagnets get repelled by magnets.
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 eye.
Valence Bond Theory
Ferromagnetism
π Electron Effects on Chemical Shift: Overview
Paramagnetism

