Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

¹H NMR: Long-Range Coupling

¹H NMR: Long-Range Coupling

The coupling interactions of nuclei across four or more bonds are usually weak, with J values less than 1 Hz. While these are usually not observed in spectra, the presence of multiple bonds along the coupling pathway can result in observable long-range coupling.
In alkenes, spin information is communicated via σ–π overlap, as seen in allylic (four-bond) and homoallylic (five-bond) couplings. These coupling interactions are stronger when the σ bond is parallel to the alkene...

You might also read

Related Articles

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

Sort by

Same author

Vanadyl Porphyrin Complex Functionalized with Nitronyl Nitroxide.

Inorganic chemistry·2026

Same author

Nanopore Data-Driven Near-T2T Genome Assembly of <i>Hippophae rhamnoides</i> ssp. <i>mongolica</i> Rousi and Its Complex Annotation.

Plants (Basel, Switzerland)·2026

Same author

Fine-Tuning the SMM Properties of a Bis(ZnDy)-Based Compound by Rationally Reducing/Increasing the Electron Density in the Equatorial Plane Perpendicular to the O<sub>phenoxido</sub>-Dy-O<sub>phenoxido-bridges</sub> Direction.

Inorganic chemistry·2026

Same author

Transcriptomic data of seven flax varieties contrasting in lodging resistance.

Frontiers in plant science·2026

Same author

Electronic structure and magnetic properties of rhenium complexes with an iminoxolene ligand: experimental and computational studies.

Dalton transactions (Cambridge, England : 2003)·2026

Same author

T2T <i>Colletotrichum lini</i> Genomes with Hifiasm: ONT R9 and R10 Read Processing and Assembly Guidelines for Fungi.

Journal of fungi (Basel, Switzerland)·2026

Search research articles

Related Experiment Video

Updated: Nov 12, 2025

Fabrication and Operation of a Nano-Optical Conveyor Belt

Fabrication and Operation of a Nano-Optical Conveyor Belt

Published on: August 26, 2015

Optical coupling of overlapping nanopillars.

Alexey A Dmitriev, Mikhail V Rybin

|March 15, 2021

Summary

We developed a new model for overlapping nanopillars, revealing a third oscillator mode that enables direct wave coupling. This advances understanding of light control in nanophotonic devices.

Area of Science:

Nanophotonics and Optics
Computational Physics

Background:

Controlling light with nanophotonic devices relies on understanding subwavelength structure interactions.
Existing multiple scattering theories analyze separated elements, not overlapping ones.

Purpose of the Study:

To develop a theoretical approach for studying wave coupling in overlapping nanophotonic particles.
To analyze the simplest system: a dimer of nanopillars.

Main Methods:

Developed a novel theoretical approach based on a three-oscillator model.
Validated the model against numerical simulations.

Main Results:

The model accurately describes the dimer system, including two modes from isolated particle responses.

More Related Videos

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials

Published on: March 23, 2017

Implementation of a Reference Interferometer for Nanodetection

Implementation of a Reference Interferometer for Nanodetection

Published on: April 26, 2014

Related Experiment Videos

Last Updated: Nov 12, 2025

Fabrication and Operation of a Nano-Optical Conveyor Belt

Fabrication and Operation of a Nano-Optical Conveyor Belt

Published on: August 26, 2015

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials

Published on: March 23, 2017

Implementation of a Reference Interferometer for Nanodetection

Implementation of a Reference Interferometer for Nanodetection

Published on: April 26, 2014

Identified a third, non-resonant oscillator mode responsible for direct coupling through the overlapping region.

Conclusions:

The three-oscillator model provides reliable agreement with simulations for overlapping nanopillars.
Offers physical insight into the collective response of clustered, overlapped subwavelength particles.