1,3,5,2,4,6-Triazatriphosphorine,2,2,4,4,6-pentakis(2,2,3,4,4,4-hexafluorobutoxy)-2,2,4,4,6,6-hexahydro-6-[(2,2,3,3,4,4,5,5-octafluoropentyl)oxy]-