Photodetachment Spectroscopy Of Cold Trapped Nh 2 - Near Threshold

Abstract

We have studied photodetachment of the amidogen anion NH2- as a function of photon energy near the detachment threshold. The detachment spectrum is obtained over the energy range of 6190-6355 cm-1 from the loss rate of the anions from a cryogenic radiofrequency multipole ion trap. By modeling all accessible rotational state-to-state photodetachment transitions, we can assign rotational state-specific thresholds to the measured spectrum. In this way, we have determined the electron affinity of NH2 to be 6224 ± 1 cm-1.

Publication Date

9-14-2018

Publication Title

Journal of Chemical Physics

Volume

149

Issue

10

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1063/1.5042621

Socpus ID

85053223866 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85053223866

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