Structures of [C3H6O]+· ions from propylene oxide and methyl-substituted 1,3-dioxolanes by photodissociation and ion/molecule reactions

Photodissociation experiments and ion/molecule reactions with pyridine and hex-1-ene show that C₃H₆O]^+· ions from propylene oxide isomerize to the vinyl metbyl ether structure. C₃H₆O]^+· fragment ions from methyl-substituted 1,3-dioxolanes have lower internal energies. In these cases a mixture of photodissociating ring-opened propylene oxide ions and vinyl methyl ether ions is observed.