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

13.6K
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...
13.6K
Valence Bond Theory02:42

Valence Bond Theory

10.9K
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...
10.9K
Atomic Nuclei: Nuclear Magnetic Moment00:59

Atomic Nuclei: Nuclear Magnetic Moment

2.9K
All atomic nuclei are positively charged. When they have a nonzero spin, they behave like rotating charges. As a consequence of their charge and spin, these nuclei generate a magnetic field (B). This, in turn, gives rise to a magnetic moment (μ), which is randomly oriented in the absence of an external magnetic field. When an external magnetic field (B0) is applied, the magnetic moment vectors can align with the field or against it in 2 + 1 orientations. A hydrogen nucleus, which is just a...
2.9K
Paramagnetism01:30

Paramagnetism

2.9K
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...
2.9K
Diamagnetism01:26

Diamagnetism

2.9K
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....
2.9K
Interpreting ¹H NMR Signal Splitting: The (n + 1) Rule01:10

Interpreting ¹H NMR Signal Splitting: The (n + 1) Rule

2.3K
In the AX proton spin system, proton A can sense the two spin states of a coupled proton X, resulting in a doublet NMR signal with two peaks of equal (1:1) intensity. When proton A is coupled to two equivalent protons (AX2 spin system), the spin states of each X can be aligned with or against the external field, creating three possible scenarios. This results in a 1:2:1  triplet signal, where the central peak corresponds to the chemical shift of A and is twice as large or intense as the...
2.3K

You might also read

Related Articles

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

Sort by
Same author

Iron to Cobalt Swapping in a Bioinspired Heme-Peroxidase: Structural Characterization and Functional Implications.

Inorganic chemistry·2026
Same author

Correction: Bis(amidophenolate)-supported pnictoranides: Lewis acid-induced electromerism in a bismuth complex.

Chemical science·2026
Same author

Probing Hydrogen Activation in a Dimetal Dihydride Complex by Symmetric Exchange with Parahydrogen.

Journal of the American Chemical Society·2026
Same author

Redox and Spin States Series of an Organometallic Heme Analogue Based on a Non-Innocent NHC/N-Donor Hybrid Macrocycle.

Inorganic chemistry·2026
Same author

The flexible behaviour of a trigonal arylimido iron complex.

Chemical communications (Cambridge, England)·2025
Same author

Oxidatively Induced Reductive N<sub>2</sub> Binding: A Dinickel-Bridging Bent N<sub>2</sub> Radical Anion and Its Redox-Triggered N<sub>2</sub> Release.

Journal of the American Chemical Society·2025
Same journal

An intrinsically stretchable nanowire-based sensing patch for wearable analysis of sweat chloride ion composition.

Chemical communications (Cambridge, England)·2026
Same journal

A sterically rigid-flexible balanced NHC-Pd precatalyst for room-temperature solvent-free C-N coupling of benzocyclic amines.

Chemical communications (Cambridge, England)·2026
Same journal

Portable fluorescent conjugated microporous polymer sensor coupled with a smartphone for on-site Fe<sup>3+</sup> detection in water.

Chemical communications (Cambridge, England)·2026
Same journal

Accelerated discovery of NO<sub>3</sub>RR single-atom catalysts <i>via</i> high-throughput DFT and machine learning.

Chemical communications (Cambridge, England)·2026
Same journal

Wafer-scale robust graphene electronics under industrial processing conditions.

Chemical communications (Cambridge, England)·2026
Same journal

Subnanoscale IrW oxide anodes: breaking immiscibility for high activity and durability in water electrolysis.

Chemical communications (Cambridge, England)·2026
See all related articles

Related Experiment Video

Updated: Dec 27, 2025

Single-molecule Manipulation of G-quadruplexes by Magnetic Tweezers
08:28

Single-molecule Manipulation of G-quadruplexes by Magnetic Tweezers

Published on: September 19, 2017

8.5K

Hexanuclear [Cp*Dy]6 single-molecule magnet.

Jianfeng Wu1, Serhiy Demeshko, Sebastian Dechert

  • 1Universität Göttingen, Institut für Anorganische Chemie, Tammannstr. 4, D-37077 Göttingen, Germany. franc.meyer@chemie.uni-goettingen.de.

Chemical Communications (Cambridge, England)
|March 6, 2020
PubMed
Summary
This summary is machine-generated.

Researchers developed a hexanuclear dysprosium cluster, [Cp*Dy]6, exhibiting slow magnetic relaxation. Applying a weak DC field suppressed quantum tunneling, achieving a record energy barrier for high nuclearity organometallic single-molecule magnets.

More Related Videos

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
10:52

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex

Published on: July 27, 2022

3.2K
Use of a Multi-compartment Dynamic Single Enzyme Phantom for Studies of Hyperpolarized Magnetic Resonance Agents
08:59

Use of a Multi-compartment Dynamic Single Enzyme Phantom for Studies of Hyperpolarized Magnetic Resonance Agents

Published on: April 15, 2016

7.1K

Related Experiment Videos

Last Updated: Dec 27, 2025

Single-molecule Manipulation of G-quadruplexes by Magnetic Tweezers
08:28

Single-molecule Manipulation of G-quadruplexes by Magnetic Tweezers

Published on: September 19, 2017

8.5K
Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
10:52

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex

Published on: July 27, 2022

3.2K
Use of a Multi-compartment Dynamic Single Enzyme Phantom for Studies of Hyperpolarized Magnetic Resonance Agents
08:59

Use of a Multi-compartment Dynamic Single Enzyme Phantom for Studies of Hyperpolarized Magnetic Resonance Agents

Published on: April 15, 2016

7.1K

Area of Science:

  • Coordination Chemistry
  • Magnetochemistry
  • Materials Science

Background:

  • Organometallic clusters are investigated for their unique magnetic properties.
  • Single-molecule magnets (SMMs) require high energy barriers for data storage applications.

Purpose of the Study:

  • To synthesize and characterize a novel hexanuclear dysprosium cluster.
  • To investigate the magnetic relaxation dynamics of the cluster.
  • To evaluate its potential as a single-molecule magnet.

Main Methods:

  • Synthesis of the hexanuclear cluster [(Cp*Dy)6K4Cl16(THF)6].
  • Structural characterization using X-ray diffraction.
  • Magnetic measurements including temperature-dependent magnetic susceptibility and relaxation studies.

Main Results:

  • The cluster [Cp*Dy]6 consists of two triangular (Cp*Dy)3 fragments linked by K+ and Cl- ions.
  • Magnetic studies revealed slow thermal relaxation and fast quantum tunneling relaxation without an external DC field.
  • Application of a weak DC field suppressed quantum tunneling, yielding a significant energy barrier of 561 K.

Conclusions:

  • The [Cp*Dy]6 cluster demonstrates promising SMM behavior.
  • The achieved energy barrier sets a new record for high nuclearity organometallic SMMs.
  • This work contributes to the development of advanced molecular magnetic materials.