Action spectroscopy of deprotomer-selected hydroxycinnamate anions James N. Bull, Jack T. Buntine, Eduardo Carrascosa, Mark H. Stockett and Evan J. Bieske Eur. Phys. J. D, 75 2 (2021) 67 Published online: 24 February 2021 DOI: 10.1140/epjd/s10053-021-00070-2