A photoionization mass spectrometric and threshold photoelectron-photoion coincidence study of vinylbromide (C2H3Br) in the vacuum ultraviolet range of 6-21Â eV

► Fragmentation dynamics of photoionized C2H3Br is investigated. ► Dissociative photoionization mass spectrometry and TPEPICO data are combined. ► Thresholds and breakdown diagram are measured and discussed for all detected ions. ► The role of electronic excitation and isomerization is analyzed.