Related Experiment Video
Updated: Oct 28, 2025

Preparation, Purification, and Characterization of Lanthanide Complexes for Use as Contrast Agents for Magnetic Resonance Imaging
Published on: July 21, 2011
Slow Magnetic Relaxation in Mono- and Bimetallic Lanthanide Tetraimido Sulfate S(NtBu)4 2- Complexes
Jochen Jung1, Florian Benner2, Regine Herbst-Irmer1
1Institut für Anorganische Chemie, Georg-August Universität Göttingen, Tammannstraße 4, 37077, Göttingen, Germany.
Abstract:
Invited for the cover of this issue are Selvan Demir and co-worker from the Michigan State University at East Lansing, and Dietmar Stalke and co-workers from the Georg-August Universität at Göttingen. The image illustrates the first coordination of a tetraimido sulfate ligand via two of its nitrogen donors to a lanthanide ion producing mono- and bimetallic lanthanide complexes where specifically the dysprosium congeners, benefitting from the intrinsic oblate-shaped electron density, feature single-molecular magnet behavior as indicated by the observed slow magnetic relaxation. Read the full text of the article at 10.1002/chem.202101076.
More Related Videos
07:24Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
Published on: April 14, 2020
09:38Fabrication Procedures and Birefringence Measurements for Designing Magnetically Responsive Lanthanide Ion Chelating Phospholipid Assemblies
Published on: January 3, 2018
Related Concept Videos
Atomic Nuclei: Types of Nuclear Relaxation
In spin–lattice or longitudinal relaxation, the excited spins exchange energy with the surrounding lattice as they return to the lower energy level. Among several mechanisms that contribute to spin–lattice relaxation, magnetic dipolar interactions are significant. Here, the excited nucleus transfers...
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...
Valence Bond Theory
Atomic Nuclei: Nuclear Relaxation Processes
Complexation Equilibria: Factors Influencing Stability of Complexes
Complexometric Titration: Ligands