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

Bewley Lattice Diagram01:12

Bewley Lattice Diagram

615
The Bewley lattice diagram, developed by L. V. Bewley, effectively organizes the reflections occurring during transmission-line transients. It visually represents how voltage waves propagate and reflect within a transmission line, making it easier to understand the complex interactions that occur.
615
Spin–Spin Coupling: One-Bond Coupling01:17

Spin–Spin Coupling: One-Bond Coupling

957
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,...
957
Spin–Spin Coupling: Three-Bond Coupling (Vicinal Coupling)01:22

Spin–Spin Coupling: Three-Bond Coupling (Vicinal Coupling)

1.1K
Vicinal or three-bond coupling is commonly observed between protons attached to adjacent carbons. Here, nuclear spin information is primarily transferred via electron spin interactions between adjacent C‑H bond orbitals. This generally favors the antiparallel arrangement of spins, so 3J values are usually positive.
The extent of coupling depends on the C‑C bond length, the two H‑C‑C angles, any electron-withdrawing substituents, and the dihedral angle between the...
1.1K
Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)01:20

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

999
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...
999
Lattice Centering and Coordination Number02:33

Lattice Centering and Coordination Number

9.6K
The structure of a crystalline solid, whether a metal or not, is best described by considering its simplest repeating unit, which is referred to as its unit cell. The unit cell consists of lattice points that represent the locations of atoms or ions. The entire structure then consists of this unit cell repeating in three dimensions. The three different types of unit cells present in the cubic lattice are illustrated in Figure 1.
Types of Unit Cells
Imagine taking a large number of identical...
9.6K
Stereoisomerism02:52

Stereoisomerism

11.8K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...
11.8K

You might also read

Related Articles

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

Sort by
Same author

Plant-Derived Nanovesicles for Ischemic Stroke Therapy via the Gut Microbiota-Gut-Brain Axis: A New Paradigm of Systemic Regulation.

International journal of nanomedicine·2026
Same author

Patients' Knowledge, Attitudes, and Practices Regarding Non-pharmacological Treatments for Irritable Bowel Syndrome.

Journal of neurogastroenterology and motility·2026
Same author

The mechanosensitive ion channel Piezo1 promotes colitis by modulating oxidative stress and ferroptosis-related markers.

Cellular signalling·2026
Same author

Moxibustion Alleviates Intestinal Inflammation by Down-Regulating Piezo1 to Inhibit Ferroptosis in Colonic Tissues of Crohn's Disease Mice.

Neurogastroenterology and motility·2025
Same author

Electroacupuncture attenuates intestinal epithelial ferroptosis in inflammatory bowel disease via Piezo1-mediated mitochondrial homeostasis.

Chinese medicine·2025
Same author

The metabolites of gut microbiota: their role in ferroptosis in inflammatory bowel disease.

European journal of medical research·2025

Related Experiment Video

Updated: Jun 24, 2025

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

14.5K

Interface states and optical coupling functionalities in the super-SSH lattices.

Tingjun Zhao, Xinyue Kang, Huamei Wang

    Optics Express
    |June 11, 2024
    PubMed
    Summary

    We reveal stable, tunable topological edge and interface states in coupled trimer lattices. These states exhibit unique optical coupling functionalities like directional coupling and beam splitting.

    More Related Videos

    Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
    05:39

    Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

    Published on: August 2, 2019

    9.6K
    Quasi-light Storage for Optical Data Packets
    07:45

    Quasi-light Storage for Optical Data Packets

    Published on: February 6, 2014

    10.8K

    Related Experiment Videos

    Last Updated: Jun 24, 2025

    Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
    09:23

    Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

    Published on: May 30, 2014

    14.5K
    Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
    05:39

    Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

    Published on: August 2, 2019

    9.6K
    Quasi-light Storage for Optical Data Packets
    07:45

    Quasi-light Storage for Optical Data Packets

    Published on: February 6, 2014

    10.8K

    Area of Science:

    • Condensed Matter Physics
    • Topological Photonics
    • Waveguide Arrays

    Background:

    • Trimer lattices offer unique topological properties.
    • Coupling between lattices can modify state characteristics.
    • Understanding edge and interface states is crucial for novel functionalities.

    Purpose of the Study:

    • To theoretically investigate the coupling between trimer lattices.
    • To reveal the existence and tunability of edge and interface states.
    • To explore the dynamics and optical functionalities of these states.

    Main Methods:

    • Theoretical analysis of coupled trimer lattices.
    • Investigation of topological phase transitions.
    • Simulation of interface state dynamics and transport properties.

    Main Results:

    • Existence of stable multiple edge and interface states confirmed.
    • Tunable number of topologically protected states demonstrated.
    • Stable oscillations and optical coupling functionalities (directional coupling, beam splitting, beam oscillation) observed.

    Conclusions:

    • Coupled trimer lattices provide a platform for tunable topological states.
    • Interface state dynamics enable novel optical coupling functionalities.
    • This work opens avenues for advanced photonic devices.