Heats of Formation of the Acetyl Radical and Ion Obtained by Threshold Photoelectron Photoion Coincidence Fogleman, Elizabeth A. ; Koizumi, Hideya ; Kercher, James P. ; Sztáray, Bálint ; Baer, Tomas Abstract Publication: Journal of Physical Chemistry A Pub Date: June 2004 DOI: 10.1021/jp040118s Bibcode: 2004JPCA..108.5288F