Mass spectra of some fluorine-containing 1,2,4-oxadiazoles

The mass spectra of 1-(3-phenyl-1,2,4-oxadiazol-5-yl)perfluoropropane, bis-(3-phenyl-1,2,4-oxadiazol-5-yl)-difluoromethane, 1,2-bis-(3-phenyl-1,2,4-oxadiazol...