160 nm vacuum-ultraviolet pulses generated as the 5th harmonic of an 800 nm femtosecond laser are sufficiently energetic to drive multiphoton transitions in molecules. 2nd order intensity-as well as interferometric autocorrelation were used as time-metrology tools for studying the photodissociation dynamics in ethylene and oxygen molecules. An imaging ion spectrometer enables the separate capture of dynamics in different fragmentation channels. Excitation in a non-collinear beam geometry is shown to deliver temporal resolution already in a single shot.