Electronic structure of NdO via slow photoelectron velocity-map imaging spectroscopy of NdO---
Abstract
Electronically excited NdO is a possible product of the chemistry associated with the release of Nd into the ionosphere, and emission from these states may contribute to the observations following such experiments. To better characterize the energetics and spectroscopy of NdO, we report a combined experimental and theoretical study using slow photoelectron velocity-map imaging spectroscopy of cryogenically cooled NdO− anions (cryo-SEVI) supplemented by wave function-based quantum-chemical calculations. Using cryo-SEVI, we measure the electron affinity of NdO to be 1.0091(7) eV and resolve numerous transitions to low-lying electronic and vibrational states of NdO that are assigned with the aid of the electronic structure calculations. Additionally, temperature-dependent data suggest contributions from the (2)4.5 state of NdO− residing 2350 cm−1 above the ground anion state. Photodetachment to higher-lying excited states of NdO is also reported, which may help to clarify observations from prior release experiments.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 20, 2021
- Source ID
- 10.1063/5.0063307
Entities
People
- Albert A Viggiano
- Daniel Neumark
- David C. Mcdonald Ii
- Jessalyn A DeVine
- Lan Cheng
- Mark C Babin
- Martin DeWitt
- Nicholas S Shuman
- Shaun G Ard
Organizations
- Air Force Office of Scientific Research
- Air Force Research Laboratory
- Johns Hopkins University
- Lawrence Berkeley National Laboratory
- Nuclear Regulatory Commission
- United States Department of Energy
- Yusuf Hamied Department of Chemistry