Infrared Spectrum and Vibrational Assignments for Tetrafluoroethylene Oxide

The i.r. spectrum of gaseous tetrafluoroethylene oxide has been investigated over the 4000-200 cm−1 region, and the fifteen vibrational fundamentals assigned. They are: (a1) 1610, 1161, 792, 501, 318; (a2) ~1300, 528, ~190; (b1) 1128, 696, 633 and 455; (b2) 1282, 557 and ~180 cm−1. To obtain this assignment it has been necessary to assume a close parallel between the vibrational spectrum of the oxide and that of the more thoroughly studied 1,1,2,2-tetrafluorocyclopropane