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

Organic Compounds03:02

Organic Compounds

57.6K
All living things are formed mostly of carbon compounds called organic compounds. The category of organic compounds includes both natural and synthetic compounds that contain carbon. Although a single, precise definition has yet to be identified by the chemistry community, most agree that a defining trait of organic molecules is the presence of carbon as the principal element, bonded to hydrogen and other carbon atoms. However, some carbon-containing compounds such as carbonates, cyanides, and...
57.6K
NMR Spectroscopy: Spin–Spin Coupling01:08

NMR Spectroscopy: Spin–Spin Coupling

3.3K
The spin state of an NMR-active nucleus can have a slight effect on its immediate electronic environment. This effect propagates through the intervening bonds and affects the electronic environments of NMR-active nuclei up to three bonds away; occasionally, even farther. This phenomenon is called spin–spin coupling or J-coupling. Coupling interactions are mutual and result in small changes in the absorption frequencies of both nuclei involved. While nuclei of the same element are involved...
3.3K
Spin–Spin Coupling: One-Bond Coupling01:17

Spin–Spin Coupling: One-Bond Coupling

1.5K
Coupling interactions are strongest between NMR-active nuclei bonded to each other, where spin information can be transmitted directly through the pair of bonding electrons. While nuclei polarize their electrons to the opposite spins, the bonding electron pair has opposite spins. Configurations with antiparallel nuclear spins are expected to be lower in energy. When coupling makes antiparallel states more favorable, J is considered to have a positive value. The one-bond coupling constant, 1J,...
1.5K
Spin–Spin Coupling Constant: Overview01:08

Spin–Spin Coupling Constant: Overview

1.5K
In bromoethane, the three methyl protons are coupled to the two methylene protons that are three bonds away. In accordance with the n+1 rule, the signal from the methyl protons is split into three peaks with 1:2:1 relative intensities. The methylene protons appear as a quartet, with the relative intensities of 1:3:3:1.
Qualitatively, any spin plus-half nucleus polarizes the spins of its electrons to the minus-half state. Consequently, the paired electron in the hydrogen–carbon bond must...
1.5K
Electron Transport Chains01:28

Electron Transport Chains

113.0K
The final stage of cellular respiration is oxidative phosphorylation that consists of two steps: the electron transport chain and chemiosmosis. The electron transport chain is a set of proteins found in the inner mitochondrial membrane in eukaryotic cells. Its primary function is to establish a proton gradient that can be used during chemiosmosis to produce ATP and generate electron carriers, such as NAD+ and FAD, that are used in glycolysis and the citric acid cycle.
The ETC is comprised of...
113.0K
Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)01:20

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

1.7K
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...
1.7K

You might also read

Related Articles

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

Sort by
Same author

Excellent Overall Water Splitting Catalyst of Single Phase 6H Triple Perovskite Ba<sub>3</sub>Co(Co<sub>0.25</sub>Ru<sub>0.75</sub>)<sub>2</sub>O<sub>9</sub> at 1 A cm<sup>-2</sup> for 1000 h.

Angewandte Chemie (International ed. in English)·2026
Same author

Outstanding T<sub>C</sub> Enhancement in 5d-3d Y<sub>2</sub>NiIrO<sub>6</sub> by Compression.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

Pressure-Induced 18 K Superconductivity and Two Superconducting Phases in CuIr_{2}S_{4}.

Physical review letters·2026
Same author

3D Unconventional Superconductivity in Bulk LaO.

Journal of the American Chemical Society·2026
Same author

High-Pressure Synthesis and Structural Instability of A-Site-Ordered Quadruple Perovskite LaHg<sub>3</sub>Ti<sub>4</sub>O<sub>12<b>+</b>δ</sub>.

Inorganic chemistry·2026
Same author

Hexavalent Ru Catalyst with Both Lattice Oxygen and Metal Ion Mechanisms Coactive for Water Oxidation.

Journal of the American Chemical Society·2025

Related Experiment Video

Updated: Feb 11, 2026

Magnetic Resonance Spectroscopy of live Drosophila melanogaster using Magic Angle Spinning
07:33

Magnetic Resonance Spectroscopy of live Drosophila melanogaster using Magic Angle Spinning

Published on: April 15, 2010

13.0K

Ba9V3Se15: a novel compound with spin chains.

Jun Zhang1,2, Min Liu1,2, Xiancheng Wang1

  • 1Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.

Journal of Physics. Condensed Matter : an Institute of Physics Journal
|April 14, 2018
PubMed
Summary

A new compound, Ba9V3Se15, was synthesized and exhibits one-dimensional spin chains. This material undergoes complex magnetic transitions, including ferrimagnetic and spin cluster glass behavior, making it a promising candidate for novel magnetic applications.

More Related Videos

A High-throughput-compatible FRET-based Platform for Identification and Characterization of Botulinum Neurotoxin Light Chain Modulators
10:30

A High-throughput-compatible FRET-based Platform for Identification and Characterization of Botulinum Neurotoxin Light Chain Modulators

Published on: December 27, 2013

5.8K
Use of Single Chain MHC Technology to Investigate Co-agonism in Human CD8+ T Cell Activation
12:09

Use of Single Chain MHC Technology to Investigate Co-agonism in Human CD8+ T Cell Activation

Published on: February 28, 2019

10.3K

Related Experiment Videos

Last Updated: Feb 11, 2026

Magnetic Resonance Spectroscopy of live Drosophila melanogaster using Magic Angle Spinning
07:33

Magnetic Resonance Spectroscopy of live Drosophila melanogaster using Magic Angle Spinning

Published on: April 15, 2010

13.0K
A High-throughput-compatible FRET-based Platform for Identification and Characterization of Botulinum Neurotoxin Light Chain Modulators
10:30

A High-throughput-compatible FRET-based Platform for Identification and Characterization of Botulinum Neurotoxin Light Chain Modulators

Published on: December 27, 2013

5.8K
Use of Single Chain MHC Technology to Investigate Co-agonism in Human CD8+ T Cell Activation
12:09

Use of Single Chain MHC Technology to Investigate Co-agonism in Human CD8+ T Cell Activation

Published on: February 28, 2019

10.3K

Area of Science:

  • Condensed Matter Physics
  • Materials Science
  • Solid State Chemistry

Background:

  • One-dimensional (1D) spin chain materials are of significant interest due to their unique magnetic properties and potential applications in low-dimensional magnetism.
  • Understanding the interplay between crystal structure and magnetic behavior is crucial for designing novel magnetic materials.

Purpose of the Study:

  • To synthesize and characterize a novel compound, Ba9V3Se15, with potential 1D spin chain characteristics.
  • To investigate the structural, magnetic, thermodynamic, and transport properties of Ba9V3Se15.
  • To elucidate the nature of magnetic transitions and the underlying magnetic exchange interactions.

Main Methods:

  • High-pressure and high-temperature synthesis techniques.
  • Systematic characterization including X-ray diffraction for structural analysis.
  • Magnetic susceptibility, specific heat, and transport measurements to probe magnetic and electronic properties.

Main Results:

  • Ba9V3Se15 crystallizes in a hexagonal structure (P-6c2) with face-sharing octahedral VSe6 chains along the c-axis, forming a triangular lattice in the ab-plane.
  • The material is a semiconductor and exhibits complex magnetic transitions, including ferrimagnetic and spin cluster glass behavior at low temperatures (2.5 K and 3.3 K).
  • Calculations indicate a dominant nearest-neighbor antiferromagnetic exchange (J1) over next-nearest-neighbor ferromagnetic exchange (J2), leading to effective ferromagnetic chains with spin-1/2.

Conclusions:

  • Ba9V3Se15 represents a novel 1D spin chain material with intricate magnetic ordering.
  • The observed magnetic transitions are attributed to the specific arrangement of VSe6 octahedra and the competing magnetic exchange interactions.
  • The compound can be considered an effective ferromagnetic chain system, offering a platform for studying low-dimensional magnetism.