Acta Cryst. (2012). E68, o2688
[ doi:10.1107/S1600536812034733 ]

Bis(pyrrolidin-1-yl)phosphinic (2,4-difluorobenzoyl)amide

M. Keikha, M. Pourayoubi, J. P. Jasinski and J. A. Golen

Abstract: The P atom in the title molecule, C₁₅H₂₀F₂N₃O₂P, is in a distorted tetrahedral P(O)(N)(N)₂ environment. The phosphoryl group and the NH unit adopt a syn orientation with respect to each other. An F atom at position 2 and an H atom at position 6 are found to occupy similar sites in a 0.70:0.30 ratio and were refined with fixed occupancies. The pyrrolidin-1-yl rings are disordered over two sets of sites, with site occupancies of 0.566 (6) and 0.434 (6), and were refined using a two-part model. In the crystal, hydrogen-bonded dimers linked by pairs of N-HO(P) hydrogen bonds generate an R₂²(8) ring motif.

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