title: N,N,N',N'-Tetra-benzyl-N''-(2,6-difluoro-benzo-yl)phospho-ric triamide.
abstract: In the C(O)NHP(O) fragment of the title compound, C(35)H(32)F(2)N(3)O(2)P, the P-N bond is longer and the O-P-N angle is contracted compared with the other two P-N bonds and O-P-N angles. The P atom adopts a distorted tetra-hedral environment and the phosphoryl and carbonyl groups are anti with respect to each other. The two tertiary N atoms of the dibenzyl-amido groups show sp(2) character with a slight deviation from planarity. In the crystal, pairs of N-H⋯O(P) hydrogen bonds form inversion dimers.
authors.affiliation: Faculty of Chemistry, North Tehran Branch, Islamic Azad University, Tehran,  Iran.
authors.forename: Akbar
authors.initials: A
authors.lastname: Raissi Shabari
authors.forename: Mehrdad
authors.initials: M
authors.lastname: Pourayoubi
authors.forename: Atekeh
authors.initials: A
authors.lastname: Tarahhomi
authors.forename: Arnold L
authors.initials: AL
authors.lastname: Rheingold
authors.forename: James A
authors.initials: JA
authors.lastname: Golen