For embodiments wherein compounds of formula (IV) function as a latent curing agent (i.e., crosslinking agent) for a resin having a plurality of hydroxy groups in addition to being a photoreducing agent, R5 is selected from the group of H, an alkyl group, a cycloalkyl group, and an aryl group; R6 is an aryl group; each R7 and R8 is independently an alkyl group or an aryl group; and Z is an oxygen