Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Colors and Magnetism03:02

Colors and Magnetism

11.6K
Color in Coordination Complexes
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...
11.6K
Diamagnetism01:26

Diamagnetism

2.4K
Materials consisting of paired electrons have zero net magnetic moments. However, when these materials are placed under an external magnetic field, the moments opposite to the field are induced. Such materials are called diamagnets. Diamagnetism is the response of the diamagnets when placed in an external magnetic field.
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....
2.4K
Ferromagnetism01:31

Ferromagnetism

2.4K
Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...
2.4K
Paramagnetism01:30

Paramagnetism

2.5K
Paramagnets are materials with unpaired electrons that possess a finite magnetic moment. In the absence of a magnetic field, these moments are randomly oriented, and thus the net moment is zero. Under an external field, a torque acting on the moments tends to align them along the field's direction. However, the random thermal motion of electrons produces a torque opposite to the external field and tries to disorient the moments. These two competing effects align only a few moments along the...
2.5K
Valence Bond Theory02:42

Valence Bond Theory

8.5K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
8.5K
Formation of Complex Ions03:45

Formation of Complex Ions

23.6K
A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
23.6K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Light-responsive spin-crossover iron(II) complexes with azo-pyridyl-benzimidazole ligands for molecular thin films.

Dalton transactions (Cambridge, England : 2003)·2026
Same author

Topological suppression of quantum tunnelling in a lanthanide single-ion molecular magnet.

Nature communications·2026
Same author

Atomically Precise Bismuth Oxido Nanoclusters as Hosts for Ln<sup>3+</sup>: Effects of Doping on Optical and Magnetic Properties of a Soluble Metal Oxide.

Inorganic chemistry·2026
Same author

Mechanistic Exploration of Half-Sandwich Iridium(III) Anticancer Compounds through Integrated Cellular, Proteomic, and In Vivo Analyses.

Journal of medicinal chemistry·2026
Same author

Attack of NADH and ascorbate toward metal-activated ligand of organoiridium(III) compound.

Journal of inorganic biochemistry·2026
Same author

Unconventional Nuclear-Spin-Dependent Toroidal Ground States in Isotopologue <sup>A</sup>Dy<sub>4</sub> [2 × 2] Complexes.

Journal of the American Chemical Society·2026
Same journal

Recent Advances in Benzannulation Approaches to Aromatic Frameworks.

Chemistry, an Asian journal·2026
Same journal

Multicomponent Synergistic Optimization of Thermoelectric Properties in PVDF-HFP Ionogels.

Chemistry, an Asian journal·2026
Same journal

Photosalient and Liquefaction Behavior of Salt Crystals.

Chemistry, an Asian journal·2026
Same journal

Application of Organic Small-Molecule Fluorescent Probes for NAD(P)H Imaging and Detection.

Chemistry, an Asian journal·2026
Same journal

A New Class in the 3d-4f Genre: A Propeller-Shaped Oxalate Bridged {Cr<sup>III</sup>Dy<sub>3</sub>} Single Molecular Magnet With Theoretical Insights.

Chemistry, an Asian journal·2026
Same journal

Fast Zn<sup>2+</sup> Transport in Aqueous Zinc Ion Batteries: A Composition-Activity Analysis of Prussian Blue Analogues as Positive and Hydrated Zinc Vanadate as Negative Electrode Materials.

Chemistry, an Asian journal·2026
See all related articles

Related Experiment Video

Updated: Jun 24, 2025

Synthesis of Cationized Magnetoferritin for Ultra-fast Magnetization of Cells
10:23

Synthesis of Cationized Magnetoferritin for Ultra-fast Magnetization of Cells

Published on: December 13, 2016

9.9K

Levamisole Based Co(II) Single-Ion Magnet.

Soumava Biswas1, Lubomir Havlicek2,3, Ivan Nemec2,4

  • 1Dr. Vishwanath Karad MIT World Peace University Survey No, 124, Paud Rd, Kothrud, Pune, 411038, Maharashtra, India.

Chemistry, an Asian Journal
|June 13, 2024
PubMed
Summary
This summary is machine-generated.

A novel cobalt(II) complex with levamisole exhibits single-ion magnet behavior. Strong intramolecular interactions and zero-field splitting contribute to its magnetic properties, showing potential for advanced magnetic applications.

Keywords:
Cobalt(II) ionLevamisoleMagnetic anisotropySingle ion magnetab initio calculations

More Related Videos

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
06:53

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Published on: June 9, 2023

2.0K
Ferromagnetic Bare Metal Stent for Endothelial Cell Capture and Retention
11:01

Ferromagnetic Bare Metal Stent for Endothelial Cell Capture and Retention

Published on: September 18, 2015

11.6K

Related Experiment Videos

Last Updated: Jun 24, 2025

Synthesis of Cationized Magnetoferritin for Ultra-fast Magnetization of Cells
10:23

Synthesis of Cationized Magnetoferritin for Ultra-fast Magnetization of Cells

Published on: December 13, 2016

9.9K
Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
06:53

Author Spotlight: Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks

Published on: June 9, 2023

2.0K
Ferromagnetic Bare Metal Stent for Endothelial Cell Capture and Retention
11:01

Ferromagnetic Bare Metal Stent for Endothelial Cell Capture and Retention

Published on: September 18, 2015

11.6K

Area of Science:

  • Coordination Chemistry
  • Magnetochemistry
  • Materials Science

Background:

  • Levamisole (L) is explored as a novel ligand for synthesizing metal complexes.
  • Understanding the magnetic properties of cobalt(II) complexes is crucial for developing new magnetic materials.

Purpose of the Study:

  • To synthesize and characterize a new cobalt(II) complex using levamisole as a ligand.
  • To investigate the structural, electronic, and magnetic properties of the synthesized complex.
  • To explore the potential of the complex as a single-ion magnet (SIM).

Main Methods:

  • Synthesis of the cobalt(II) complex [Co(NCS)2(L)2] (1).
  • Single-crystal X-ray diffraction for structural determination.
  • Quantum Theory of Atoms in Molecules (QTAIM) for analyzing intramolecular interactions.
  • Direct current (dc) magnetic analyses and ab initio ligand field theory calculations.
  • Dynamic magnetization measurements to study magnetic relaxation.

Main Results:

  • The cobalt(II) ion exhibits a distorted tetrahedral coordination geometry.
  • Strong intramolecular S⋅⋅⋅S and S⋅⋅⋅N interactions were identified.
  • The complex displays zero-field splitting (ZFS) and significant magnetic anisotropy.
  • Field-induced single-ion magnet (SIM) behavior was observed, with slow magnetic relaxation via an Orbach mechanism.

Conclusions:

  • The synthesized cobalt(II) complex demonstrates promising single-ion magnet properties.
  • Intramolecular interactions and ZFS play a key role in the observed magnetic behavior.
  • The complex shows potential for applications in molecular magnetism and spintronics.