Spectroscopy of Radicals, Clusters, and Transition States Using Slow Electron Velocity-Map Imaging of Cryogenically Cooled Anions.
Daniel M NeumarkPublished in: The journal of physical chemistry. A (2023)
Slow electron velocity-map imaging of cryogenically cooled anions (cryo-SEVI) is a high-resolution variant of anion photoelectron spectroscopy that has been applied with considerable success over the years to the study of radicals, size-selected clusters, and transition states for unimolecular and bimolecular reactions. Cryo-SEVI retains the versatility of conventional anion photoelectron spectroscopy while offering sub-meV resolution, thereby enabling the resolution of vibrational structure in the photoelectron spectra of complex anions. This Feature Article describes recent experiments in our laboratory using cryo-SEVI, including a new research direction in which anions are vibrationally pre-excited with an infrared laser pulse prior to photodetachment.
Keyphrases
- high resolution
- ionic liquid
- high speed
- mass spectrometry
- single molecule
- electron microscopy
- tandem mass spectrometry
- blood pressure
- density functional theory
- blood flow
- machine learning
- deep learning
- electron transfer
- energy transfer
- high density
- solar cells
- neural network
- molecular dynamics
- photodynamic therapy
- raman spectroscopy