Related Experiment Video
Updated: Jul 6, 2026

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization
Published on: August 6, 2018
State-selected imaging of HCCO radical photodissociation dynamics
Cunshun Huang1, Armando D Estillore, Arthur G Suits
1Department of Chemistry, Wayne State University, Detroit, Michigan 48202, USA.
Abstract:
We present a dc sliced ion imaging study of HCCO radical photodissociation to CH and CO at 230 nm. The measurements were made using a two-color reduced Doppler probe strategy. The CO rotational distribution was consistent with a Boltzmann distribution at 3500 K. Using the dc slice ion imaging approach, we obtained CO images for various rotational levels of CO (v=0). The results are largely consistent with earlier work, albeit with a significant 0.9 eV peak seen previously in the translational energy distributions absent in our state-selected imaging study.
Related Concept Videos
Radical Reactivity: Overview
UV–Vis Spectroscopy: Molecular Electronic Transitions
Double Resonance Techniques: Overview
Spin decoupling is usually achieved by...
¹³C NMR: Distortionless Enhancement by Polarization Transfer (DEPT)
Mass Spectrometry: Cycloalkane Fragmentation
For example, cyclohexane molecular ions have a mass-to-charge ratio (m/z) of 84, which tends to produce a stronger signal than linear alkanes like hexane. This stability comes from...
Electron Paramagnetic Resonance (EPR) Spectroscopy: Organic Radicals

