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

π Electron Effects on Chemical Shift: Overview01:27

π Electron Effects on Chemical Shift: Overview

1.7K
An applied magnetic field causes loosely bound π-electrons in organic molecules to circulate, producing a local or induced diamagnetic field over a large spatial volume. As the molecules tumble in solution, the field generated by π-electrons in spherical substituents results in a zero net field. However, the net field generated by π-electrons in non-spherical substituents is not zero. The effect of this induced field depends on the orientation of the molecule with respect to B0,...
1.7K
Types of Chemical Bonds02:37

Types of Chemical Bonds

94.6K
Chemical bonding theories were pioneered by American chemist Gilbert N. Lewis. He developed a model called the Lewis model to explain the type and formation of different bonds. Chemical bonding is central to chemistry; it explains how atoms or ions bond together to form molecules. It explains why some bonds are strong and others are weak, or why one carbon bonds with two oxygens and not three; why water is H2O and not H4O. 
94.6K
Electron Behavior00:54

Electron Behavior

109.7K
Overview
Electrons are negatively charged subatomic particles that are attracted to an orbit around the positively-charged nucleus of an atom. They reside in locations that are associated with energy levels called shells and are further organized into sub-shells and orbitals within each shell.
Electrons Orbit the Nucleus
Electrons are found in specific locations outside of the nucleus. The shell in which an electron resides indicates the general energy level of the electron: those closer to the...
109.7K
π Electron Effects on Chemical Shift: Aromatic and Antiaromatic Compounds01:14

π Electron Effects on Chemical Shift: Aromatic and Antiaromatic Compounds

1.9K
In aromatic compounds, such as benzene, the circulation of (4n + 2) π-electrons sets up a diamagnetic or diatropic ring current around the perimeter of the molecule. This current induces a magnetic field that opposes the external field inside the ring and reinforces it on the outside. The protons in benzene are deshielded and exhibit high chemical shifts in the range 6.5–8.5 ppm. The shielding effect at the center of the ring is evident in complex aromatic molecules, such as...
1.9K
Chemical Equations03:10

Chemical Equations

82.2K
Chemical equations represent the identities and relative quantities of substances involved in a chemical reaction. The substances undergoing reaction are called reactants, and their formulas are placed on the left side of the equation. The substances generated by the reaction are called products, and their formulas are placed on the right side of the equation. Plus signs (+) separate individual reactant and product formulas, and an arrow (→) separates the reactant and product (left and right)...
82.2K
Electron Affinity03:07

Electron Affinity

43.7K
The electron affinity (EA) is the energy change for adding an electron to a gaseous atom to form an anion (negative ion).
43.7K

You might also read

Related Articles

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

Sort by
Same author

Disentangling Complex UV-Induced Relaxation Dynamics of 2'-Deoxyadenosine from 30 fs to 10 ps.

The journal of physical chemistry letters·2026
Same author

Stereocontrol as a tool for shaping abiotic, sequence-defined oligourethanes.

Polymer chemistry·2026
Same author

Exploring Excited State Proton Transfer Dynamics upon Ultraviolet Excitation.

The journal of physical chemistry. A·2026
Same author

Construction of Complete Phase Diagrams for Protein Liquid-Liquid Phase Separation by <i>In Situ</i> Raman Microspectroscopy.

The journal of physical chemistry letters·2026
Same author

Ultrafast dynamics of the UV-induced electronic relaxation in DNA guanine-thymine dinucleotides: from the Franck-Condon states to the minima of the potential energy surfaces.

Physical chemistry chemical physics : PCCP·2025
Same author

Time-Domain Visualization of Electron-Phonon Coupling in Nanographenes.

Small methods·2025

Related Experiment Video

Updated: Feb 13, 2026

Bridging the Bio-Electronic Interface with Biofabrication
16:38

Bridging the Bio-Electronic Interface with Biofabrication

Published on: June 6, 2012

17.3K

Electronic Couplings in (Bio-) Chemical Processes.

Margherita Maiuri1, Johanna Brazard2

  • 1Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133, Milano, Italy. margherita.maiuri@polimi.it.

Topics in Current Chemistry (Cham)
|March 21, 2018
PubMed
Summary

Two-dimensional electronic spectroscopy (2DES) offers new insights into complex systems by measuring electronic state correlations. This technique is crucial for understanding energy transfer, photochemical processes, and system heterogeneity.

Keywords:
Energy transferHeterogeneityPhotoreactivityTwo-dimensional electronic spectroscopyVibronic coupling

More Related Videos

Processing Embryo, Eggshell, and Fungal Culture for Scanning Electron Microscopy
09:15

Processing Embryo, Eggshell, and Fungal Culture for Scanning Electron Microscopy

Published on: August 16, 2019

10.0K
Obtaining 3D Chemical Maps by Energy Filtered Transmission Electron Microscopy Tomography
08:15

Obtaining 3D Chemical Maps by Energy Filtered Transmission Electron Microscopy Tomography

Published on: June 9, 2018

6.8K

Related Experiment Videos

Last Updated: Feb 13, 2026

Bridging the Bio-Electronic Interface with Biofabrication
16:38

Bridging the Bio-Electronic Interface with Biofabrication

Published on: June 6, 2012

17.3K
Processing Embryo, Eggshell, and Fungal Culture for Scanning Electron Microscopy
09:15

Processing Embryo, Eggshell, and Fungal Culture for Scanning Electron Microscopy

Published on: August 16, 2019

10.0K
Obtaining 3D Chemical Maps by Energy Filtered Transmission Electron Microscopy Tomography
08:15

Obtaining 3D Chemical Maps by Energy Filtered Transmission Electron Microscopy Tomography

Published on: June 9, 2018

6.8K

Area of Science:

  • Spectroscopy
  • Physical Chemistry
  • Quantum Mechanics

Background:

  • Two-dimensional electronic spectroscopy (2DES) has emerged as a powerful technique over the past two decades.
  • It targets electronic transitions in the visible range, extending traditional 2D optical methods.
  • 2DES enables the measurement of correlations among electronic states within complex systems.

Purpose of the Study:

  • To provide fundamental insights into the structure and dynamics of condensed-phase systems.
  • To investigate photo-physical phenomena, including electronic and vibrational couplings.
  • To explore ultrafast photochemical processes and system heterogeneity.

Main Methods:

  • Utilizing two-dimensional electronic spectroscopy (2DES) to probe electronic transitions.
  • Analyzing correlations among electronic states in various molecular systems.
  • Applying 2DES to study energy transfer, photochemical reactions, and system heterogeneity.

Main Results:

  • 2DES has significantly advanced our understanding of energy transfer mechanisms in multi-chromophoric systems, such as photosynthesis.
  • The technique has revealed details of ultrafast photochemical processes and molecular heterogeneity.
  • It has provided insights into photo-induced coherent oscillations linked to electronic and vibrational couplings.

Conclusions:

  • 2DES is a versatile tool for dissecting complex phenomena in condensed-phase systems.
  • It has established new research areas including system heterogeneity, energy transfer, and reaction dynamics.
  • The continued development of 2DES promises further breakthroughs in understanding molecular processes.