First spectroscopic observation of gold(I) butadiynylide: Photodetachment velocity map imaging of the AuC4H anion

Bradley Visser, Matthew Addicoat, Jason Gascooke, Warren Lawrance, Gregory Metha

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The velocity map imaging technique was used in the investigation of gold(i) butadiynylide, AuC4H, with images recorded at two excitation wavelengths. The resultant photodetachment spectra show a well defined vibrational progression in the neutral with an energy spacing of 343 ± 3 cm−1. The adiabatic electron affinity was determined to be 1.775 ± 0.005 eV and assigned to the X1Σ+←X2Σ+ transition between the anionic and neutral ground states. Franck-Condon simulations performed on density functional theory optimized geometries assisted the assignment of linear geometries to the neutral and anion and the observed vibrational progression to that of the Au-C4H stretch.

Original languageEnglish
Article number044320
Pages (from-to)044320-1-044320-8
Number of pages8
JournalJournal of Chemical Physics
Volume145
Issue number4
DOIs
Publication statusPublished - 2016

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