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

¹³C NMR: ¹H–¹³C Decoupling01:04

¹³C NMR: ¹H–¹³C Decoupling

The probability of having two carbon-13 atoms next to each other is negligible because of the low natural abundance of carbon-13. Consequently, peak splitting due to carbon-carbon spin-spin coupling is not observed in spectra. However, protons up to three sigma bonds away split the carbon signal according to the n+1 rule, resulting in complicated spectra.
A broadband decoupling technique is used to simplify these complex, sometimes overlapping, signals. Broadband decoupling relies on a...
Atomic Emission Spectroscopy: Interference01:30

Atomic Emission Spectroscopy: Interference

In atomic emission spectroscopy (AES), high-temperature atomizers excite a broad range of elements and molecules that generate complex emissions from sources such as oxides, hydroxides, and flame combustion products in the flame or plasma. Several strategies can be employed to minimize spectral interferences caused by overlapping emission lines or bands. These include increasing instrument resolution, choosing alternative emission lines, optimally placing the detector in low-background regions,...
UV–Vis Spectroscopy: Molecular Electronic Transitions01:16

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 process,...
¹H NMR: Interpreting Distorted and Overlapping Signals01:02

¹H NMR: Interpreting Distorted and Overlapping Signals

Spin systems where the difference in chemical shifts of the coupled nuclei is greater than ten times J are called first-order spin systems. These nuclei are weakly coupled, and their chemical shifts and coupling constant can generally be estimated from the well-separated signals in the spectrum.
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are slanted or...
IR Spectroscopy: Molecular Vibration Overview01:24

IR Spectroscopy: Molecular Vibration Overview

When Infrared (IR) radiation passes through a covalently bonded molecule, the bonds transition from lower to higher vibrational levels. The fundamental vibrational motions that result in infrared absorption can be classified as stretching or bending vibrations.
Stretching vibrations are vibrational motions that occur along the bond line, changing the bond length or distance between two bonded atoms. They are further distinguished as symmetric or asymmetric. In symmetric stretching, the...
IR Spectrum Peak Broadening: Hydrogen Bonding01:23

IR Spectrum Peak Broadening: Hydrogen Bonding

The vibrational frequency of a bond is directly proportional to its bond strength. As a result, stronger bonds vibrate at higher frequencies, while weaker bonds vibrate at lower frequencies. The stretching vibration of the strong O–H bond in alcohols and phenols (very dilute solution or gas phase) appears as a sharp peak at 3600–3650 cm−1.
However, the extent of hydrogen bonding influences the observed stretching frequency and band broadening. Intermolecular or intramolecular hydrogen bonding...

You might also read

Related Articles

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

Sort by
Same author

Influence of the simultaneous calibration of multiple ring dosimeters on the individual absorbed dose.

Journal of radiological protection : official journal of the Society for Radiological Protection·2021
Same author

Determination of consensus k <sub>Q</sub> values for megavoltage photon beams for the update of IAEA TRS-398.

Physics in medicine and biology·2020
Same author

Brachytherapy organ dose estimation using Monte Carlo simulations of realistic patient models.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2018
Same author

Peripheral dose around a mobile linac for intraoperative radiotherapy: radiation protection aspects.

Journal of radiological protection : official journal of the Society for Radiological Protection·2018
Same author

Correction factors for ionization chamber measurements with the 'Valencia' and 'large field Valencia' brachytherapy applicators.

Physics in medicine and biology·2018
Same author

Calibration of a thermoluminescent dosimeter worn over lead aprons in fluoroscopy guided procedures.

Journal of radiological protection : official journal of the Society for Radiological Protection·2018

Related Experiment Video

Updated: Jun 14, 2026

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
10:40

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

Charmonium spectroscopy above thresholds.

T Fernández-Caramés1, A Valcarce, J Vijande

  • 1Departamento de Física Fundamental, Universidad de Salamanca, E-37008 Salamanca, Spain.

Physical Review Letters
|April 7, 2010
PubMed
Summary
This summary is machine-generated.

This study analyzes four-quark charmonium states, clarifying charmonium spectroscopy. The findings offer robust insights into compact four-quark systems and meson-meson molecules above charmed meson production thresholds.

More Related Videos

Coulomb Explosion Imaging as a Tool to Distinguish Between Stereoisomers
08:51

Coulomb Explosion Imaging as a Tool to Distinguish Between Stereoisomers

Published on: August 18, 2017

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
10:52

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex

Published on: July 27, 2022

Related Experiment Videos

Last Updated: Jun 14, 2026

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
10:40

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

Coulomb Explosion Imaging as a Tool to Distinguish Between Stereoisomers
08:51

Coulomb Explosion Imaging as a Tool to Distinguish Between Stereoisomers

Published on: August 18, 2017

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex
10:52

Line Shape Analysis of Dynamic NMR Spectra for Characterizing Coordination Sphere Rearrangements at a Chiral Rhenium Polyhydride Complex

Published on: July 27, 2022

Area of Science:

  • * Theoretical Physics
  • * Particle Physics
  • * Quantum Chromodynamics

Background:

  • * Understanding the complex spectrum of charmonium states is crucial for advancing particle physics.
  • * Existing charmonium spectroscopy data presents ambiguities, particularly for states above the open charm threshold.

Purpose of the Study:

  • * To systematically analyze four-quark charmonium states.
  • * To investigate compact four-quark systems and meson-meson molecular states.
  • * To resolve ambiguities in charmonium spectroscopy above the charmed meson production threshold.

Main Methods:

  • * Employed a systematic and self-consistent theoretical framework.
  • * Applied established methods for analyzing multi-quark systems.
  • * Focused on calculations relevant to charmonium spectroscopy.

Main Results:

  • * Presented a consistent analysis of four-quark charmonium states.
  • * Provided insights into the nature of compact four-quark systems.
  • * Addressed the existence and properties of meson-meson molecules.

Conclusions:

  • * The results offer a robust clarification of charmonium spectroscopy.
  • * The study provides a foundation for future investigations into exotic hadrons.
  • * Findings are expected to guide experimental searches for charmonium states.