Measurement and theoretical simulation of the HCCO^- anion photoelectron spectrum

Abstract

The photoelectron spectrum of HCCO- at the photodetachment wavelength of 355 nm was theoretically simulated. Most of the experimental peaks were assigned to transitions into vibrational states of HCCO. Analysis of the peak heights indicates that the structures of HCCO- and HCCO corresponding to the bending coordinates are closer to each other.