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

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 eye.
Valence Bond Theory02:42

Valence Bond Theory

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...
Properties of Organometallic Compounds01:23

Properties of Organometallic Compounds

Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.
Metal-Ligand Bonds02:51

Metal-Ligand Bonds

The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
Ferromagnetism01:31

Ferromagnetism

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...
Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)01:20

Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)

Two NMR-active nuclei bonded to a central atom can be involved in geminal or two-bond coupling. Geminal coupling is commonly seen between diastereotopic protons in chiral molecules and unsymmetrical alkenes, among others.
The central atom need not be NMR-active because its electrons are affected by the electron polarization of the spin-active atoms. However, spin information is transmitted less effectively than in one-bond coupling, and 2J values are usually weaker than 1J values. The energy of...

You might also read

Related Articles

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

Sort by
Same author

"The Intangible Became Tangible": Qualitative Insights Into How End-Of-Life Experiences Shape Bereavement.

Omega·2026
Same author

An Unprecedented Square Planar Fe(III) Complex Exhibiting Spin Crossover Between the Spin-Admixed States.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026
Same author

Electronic Structure Study of Rhombic Mn<sup>II</sup> Complexes with Hexadentate N<sub>4</sub>O<sub>2</sub> Chelate Ligands.

Inorganic chemistry·2026
Same author

Magnetic Blocking in Fluoflavine Radical-Bridged Dilanthanide Complexes.

Journal of the American Chemical Society·2025
Same author

Equipping the front lines: Building a harm reduction program for Louisiana first responders.

Journal of the American Pharmacists Association : JAPhA·2025
Same author

Fast and efficient room-temperature phosphorescence from metal-free organic molecular liquids.

Chemical science·2025

Related Experiment Video

Updated: Jul 11, 2026

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

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

Published on: June 9, 2023

Heterometallic cubane single-molecule magnets.

Patrick L Feng1, Christopher C Beedle, Wolfgang Wernsdorfer

  • 1Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, USA.

Inorganic Chemistry
|September 11, 2007
PubMed
Summary
This summary is machine-generated.

Two novel heterometallic cubane molecules, [Mn(3)Ni...] and [Mn(3)Zn...], exhibit single-molecule magnet properties. These compounds display distinct spin states and magnetic interactions, paving the way for advanced molecular magnetism research.

More Related Videos

Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks (MOFs)
08:25

Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks (MOFs)

Published on: January 17, 2020

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

Related Experiment Videos

Last Updated: Jul 11, 2026

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

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

Published on: June 9, 2023

Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks (MOFs)
08:25

Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks (MOFs)

Published on: January 17, 2020

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

Area of Science:

  • Inorganic Chemistry
  • Materials Science
  • Magnetochemistry

Background:

  • Heterometallic cubane molecules represent a class of compounds with potential applications in molecular magnetism.
  • Understanding the magnetic properties of these complexes is crucial for developing new magnetic materials.

Purpose of the Study:

  • To synthesize and characterize two new heterometallic cubane molecules containing manganese with either nickel or zinc.
  • To investigate the magnetic properties, including ground state spin, exchange interactions, and single-molecule magnet behavior, of the synthesized compounds.

Main Methods:

  • High-frequency electron paramagnetic resonance (HF-EPR) spectroscopy.
  • Magnetization measurements on single crystals.
  • Analysis of magnetic field dependence.

Main Results:

  • Synthesis of [Mn(3)Ni(hmp)(3)O(N(3))(3)(C(7)H(5)O(2))(3)] (1) with an S = 5 ground state (DeltaE > 120 K) and [Mn(3)Zn(hmp)(3)O(N(3))(3)(C(3)H(5)O(2))(3)] (2) with an S = 6 ground state (DeltaE > 105 K).
  • Observed ferromagnetic Mn-Mn exchange interactions in both complexes, with competing antiferromagnetic Ni-Mn interactions in complex 1.
  • Magnetization data confirmed that both complexes function as single-molecule magnets.

Conclusions:

  • The synthesized heterometallic cubane molecules exhibit promising single-molecule magnet characteristics.
  • The interplay of ferromagnetic and antiferromagnetic interactions influences the magnetic properties of these systems.
  • These findings contribute to the field of molecular magnetism and the design of new magnetic materials.