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

¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)

¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)

When proton-coupled carbon-13 spectra are simplified by a broadband proton decoupling technique, structural information about the coupled protons is lost. Distortionless enhancement by polarization transfer (DEPT) is a technique that provides information on the number of hydrogens attached to each carbon in a molecule. While the DEPT experiment utilizes complex pulse sequences, the pulse delay and flip angle are specifically manipulated. The resulting signals have different phases depending on...

You might also read

Related Articles

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

Sort by

Same author

Unraveling the Spectroscopy of the Phenalenyl Radical.

ACS physical chemistry Au·2025

Same author

Intramolecular hole-transfer in protonated anthracene.

Physical chemistry chemical physics : PCCP·2023

Same author

Velocity map imaging spectroscopy of C<sub>2</sub>H<sup>-</sup> and C<sub>2</sub>D<sup>-</sup>: A benchmark study of vibronic coupling interactions.

The Journal of chemical physics·2022

Same author

PAH Growth in Flames and Space: Formation of the Phenalenyl Radical.

The journal of physical chemistry. A·2021

Same author

Velocity Map Imaging Spectroscopy of the Dipole-Bound State of CH<sub>2</sub>CN<sup>-</sup>: Implications for the Diffuse Interstellar Bands.

Journal of the American Chemical Society·2021

Same author

The spin-forbidden vacuum-ultraviolet absorption spectrum of <sup>14</sup>N<sup>15</sup>N.

The Journal of chemical physics·2019

Same journal

Electronegative, Transparent, and Flexible Triboelectric Electrodes via Three-Dimensionally Stacked Interconnect Structure with Cross-Interface Electron Transport.

The journal of physical chemistry letters·2026

Same journal

Effects of Ether Bonds on Liquid-Liquid Transitions in Quaternary Ammonium and Phosphonium Ionic Liquids under High Pressure.

The journal of physical chemistry letters·2026

Same journal

Origins of Size-Dependent Kinetics in Microdroplets.

The journal of physical chemistry letters·2026

Same journal

Iso-Potential <i>Operando</i> Coupling of XRD and a Profile Reactor: Structural Insights into ZnPd/ZnO during Methanol Steam Reforming.

The journal of physical chemistry letters·2026

Same journal

Formation of Methanol Clathrate Hydrate in Simulated Interstellar Ices.

The journal of physical chemistry letters·2026

Same journal

Suppressing Residual Low-Dimensional Phases in Bromide Perovskite LEDs Using a Dimethyl Phosphate Ionic Liquid.

The journal of physical chemistry letters·2026

See all related articles

Search research articles

Related Experiment Video

Updated: Feb 23, 2026

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

NOO Peroxy Isomer Exposed with Velocity-Map Imaging.

B A Laws¹, S J Cavanagh¹, B R Lewis¹

¹Research School of Physics and Engineering, The Australian National University , Canberra ACT 2601, Australia.

The Journal of Physical Chemistry Letters

|August 31, 2017

Summary

This summary is machine-generated.

Researchers have identified the stable peroxy isomer of nitrogen dioxide (NOO), a key atmospheric gas. This discovery, using photoelectron spectroscopy, confirms the existence of this reactive species.

More Related Videos

Rapid Scan Electron Paramagnetic Resonance Opens New Avenues for Imaging Physiologically Important Parameters In Vivo

Rapid Scan Electron Paramagnetic Resonance Opens New Avenues for Imaging Physiologically Important Parameters In Vivo

Published on: September 26, 2016

High-speed Particle Image Velocimetry Near Surfaces

High-speed Particle Image Velocimetry Near Surfaces

Published on: June 24, 2013

Related Experiment Videos

Last Updated: Feb 23, 2026

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

Rapid Scan Electron Paramagnetic Resonance Opens New Avenues for Imaging Physiologically Important Parameters In Vivo

Rapid Scan Electron Paramagnetic Resonance Opens New Avenues for Imaging Physiologically Important Parameters In Vivo

Published on: September 26, 2016

High-speed Particle Image Velocimetry Near Surfaces

High-speed Particle Image Velocimetry Near Surfaces

Published on: June 24, 2013

Area of Science:

Atmospheric Chemistry
Chemical Physics
Spectroscopy

Background:

Nitrogen dioxide (NO2) chemistry is typically understood via the ONO isomer.
The peroxy isomer (NOO) has been theorized but not experimentally confirmed as stable.
Understanding NO2 isomers is crucial for atmospheric trace gas studies.

Purpose of the Study:

To experimentally confirm the existence and stability of the peroxy isomer of nitrogen dioxide (NOO).
To characterize the electronic and vibrational properties of the NOO isomer.
To provide new insights into the atmospheric chemistry of nitrogen oxides.

Main Methods:

Velocity-map-imaged photoelectron spectroscopy of the nitrite anion (NO2-).
Ab initio quantum chemical calculations.
Analysis of energetic-electron structure and spectral data.

Main Results:

Photoelectron spectra revealed distinct structures attributable to the NOO- isomer.
The electron affinity of NOO was determined to be 335(30) cm-1.
Vibrational frequencies for the NOO (X̃2A') ground state were established.
Ab initio calculations supported the experimental findings.

Conclusions:

The study provides the first direct experimental evidence for the stable peroxy isomer of nitrogen dioxide (NOO).
The determined properties confirm NOO as an important, albeit previously unobserved, reactive species in atmospheric chemistry.
This work opens new avenues for studying the reactivity and role of NOO in atmospheric processes.