Synchrotron radiation selected s-tetrazine ion chemistry

Abstract

With use of synchrotron radiation (9-22 eV) the photon-selected chemistry of s-tetrazine ion is reported. Dissociation intermediates and products are investigated by the threshold photoelectron-photoion coincidence technique. On the basis of breakdown curves and thermodynamics, the loss of N_2 is found to be associated with the C_2N_2H_2^+ ion with an activation energy of 0.96 eV. Smaller fragment ions such as HCNH^+ and HCN^+ originate from single bond breaking of the C_2N_2H_2^+ primary fragment ion rather than the dissociation of the parent ion