title: Tetra-methyl N,N'-(2,2,3,3,4,4-hexa-fluoro-1,5-dioxopentane-1,5-di-yl)bis-(phospho-ramidate).
abstract: The mol-ecule of the title compound, C(9)H(14)F(6)N(2)O(8)P(2), lies on a twofold rotation axis that passes through the middle C atom of the three-atom fluoro-methyl-ene unit. The carbonyl and phosphoryl groups are in an antiperiplanar conformation. In the crystal, N-H⋯O=P hydrogen bonds link the mol-ecules into polymeric chains parallel to the c axis.
authors.forename: Victor A
authors.initials: VA
authors.lastname: Trush
authors.forename: Kateryna E
authors.initials: KE
authors.lastname: Gubina
authors.forename: Yaroslav O
authors.initials: YO
authors.lastname: Gumeniuk
authors.forename: Tetyana Yu
authors.initials: TY
authors.lastname: Sliva
authors.forename: Irina S
authors.initials: IS
authors.lastname: Konovalova