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

Hybridization of Atomic Orbitals II

Hybridization of Atomic Orbitals II

sp3d and sp3d 2 Hybridization

Molecular Orbital Theory I

Molecular Orbital Theory I

Overview of Molecular Orbital Theory

Molecular Orbital Theory II

Molecular Orbital Theory II

Molecular Orbital Energy Diagrams

Valence Bond Theory

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...

MO Theory and Covalent Bonding

MO Theory and Covalent Bonding

The molecular orbital theory describes the distribution of electrons in molecules in a manner similar to the distribution of electrons in atomic orbitals. The region of space in which a valence electron in a molecule is likely to be found is called a molecular orbital. Mathematically, the linear combination of atomic orbitals (LCAO) generates molecular orbitals. Combinations of in-phase atomic orbital wave functions result in regions with a high probability of electron density, while...

UV–Vis Spectroscopy: Molecular Electronic Transitions

UV–Vis Spectroscopy: Molecular Electronic Transitions

In Ultraviolet–Visible (UV–Vis) spectroscopy, the absorption of electromagnetic radiation is used to probe the electronic structure of molecules. This technique provides insights into molecular electronic transitions, particularly the movement of electrons between different molecular orbitals. Radiation is absorbed if the energy of the electromagnetic radiation passing through the molecule is precisely equal to the energy difference between the excited and ground states. During this...

You might also read

Related Articles

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

Sort by

Same author

3-D Markerless Tracking of Speech Movements With Submillimeter Accuracy.

IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society·2026

Same author

A Comprehensive Dataset of Chemical Reactions Covering Second and Third Row Elements with Million-Scale Quantum Chemical Calculations.

Scientific data·2026

Same author

Synthesis of 3-desoxycollinoketone B and its ability to reduce Alzheimer-associated misfolded proteins.

Nature communications·2026

Same author

Dual Targeting of Tau Kinases and Autophagy by Abemaciclib Independent of CDK4/6 Inhibition.

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

Same author

Riemannian denoising model for molecular structure optimization with chemical accuracy.

Nature computational science·2026

Same author

Accelerating Materials Discovery Through Sparse Gaussian Process Machine Learning Potentials.

Accounts of chemical research·2025

Search research articles

Related Experiment Video

Updated: Apr 29, 2026

Site Directed Spin Labeling and EPR Spectroscopic Studies of Pentameric Ligand-Gated Ion Channels

Site Directed Spin Labeling and EPR Spectroscopic Studies of Pentameric Ligand-Gated Ion Channels

Published on: July 4, 2016

Tuning molecular orbitals in molecular electronics and spintronics.

Woo Youn Kim¹, Kwang S Kim

¹Center for Superfunctional Materials, Department of Chemistry, Pohang University of Science and Technology, Pohang 790-784, Korea.

Accounts of Chemical Research

|September 23, 2009

Summary

External electric and magnetic fields can precisely control molecular orbitals (MOs) for advanced molecular devices. This enables novel functionalities like electric-field-controlled magnetic switching and super-magnetoresistance in graphene nanoribbons.

More Related Videos

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

Published on: June 28, 2018

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids

Published on: May 27, 2020

Related Experiment Videos

Last Updated: Apr 29, 2026

Site Directed Spin Labeling and EPR Spectroscopic Studies of Pentameric Ligand-Gated Ion Channels

Site Directed Spin Labeling and EPR Spectroscopic Studies of Pentameric Ligand-Gated Ion Channels

Published on: July 4, 2016

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser

Published on: June 28, 2018

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids

Published on: May 27, 2020

Area of Science:

Nanotechnology
Quantum Mechanics
Materials Science

Background:

Molecular orbitals (MOs) are crucial for electron transport in molecular devices.
External electric and magnetic fields offer precise control over molecular electronic structures.

Purpose of the Study:

To investigate the effects of external electric and magnetic fields on molecular electronic and spintronic devices.
To explore the modulation of molecular orbitals (MOs) for tuning electron transport properties.

Main Methods:

Analysis of the Stark effect on MO energy levels due to external electric fields.
Investigation of magnetic field effects on MOs and spin polarization in graphene nanoribbons.

Main Results:

Electric fields can induce magnetic on-off switching by altering the energy of magnetic excited states.
Magnetic fields can control both spin polarization and orbital symmetries in zigzag graphene nanoribbons (ZGNRs).
Predicted "super-magnetoresistance" in ZGNR devices due to double spin-filtering.

Conclusions:

External fields provide powerful tools for manipulating MOs and tailoring the performance of molecular electronic and spintronic devices.
This research opens avenues for developing novel interactive molecular devices with enhanced functionalities.