A new phosphoric triamide structure, CHCl2C(O)NHP(O)[NHCH2CH2CH3]2 (i), is investigated. The P atom is within an [NCP]P(O)[N]2 environment (NCP is the nitrogen atom of the C(O)NHP(O) segment) with the bond angles at the P atom in the range of 103.46(9) to 118.51(9)°. The NCP―H bond adopts a syn conformation with respect to the P═O group, whereas, the two other N―H units are in an anti conformation with respect to the P═O group. As it is expected and observed for analogous structures,1 the P―NCP bond length (of 1.6962(16) Å) is longer than the two other P―N bonds (1.6201(16) and 1.6257(18) Å). In the crystal structure, molecules are aggregated in a one-dimensional arrangement parallel to the plane (1–10) in the direction perpendicular to the (110) plane (Fig. 1). The spectroscopic features of the title structure as well as some phosphoramides ([2-Cl-C6H4O]P(O)[NHCH2C6H4-4-Cl]2 (ii), [2-Cl-C6H4O]P(O)[NHCH2C6H4-4-CH3]2 (iii), [4-Cl-C6H4CH2NH]3P(O) (iv))and thiophosphoramides ([4-Cl-C6H4CH2NH]3P(S) (v), [4-CH3-C6H4CH2NH]3P(S) (vi), [CH3O]2P(S)[NHCH2C6H4-4-CH3]2 (vii)) are reported. Fig. 1. A view of the crystal packing of CHCl2C(O)NHP(O)[NHCH2CH2CH3]2 is represented. The carbon-bound H atoms were omitted for the sake of clarity and the hydrogen bonds are shown as dotted lines. References 1 M. Toghraee, M. Pourayoubi, V. Divjakovic, Polyhedron, 2011, 30, 1680–1690.

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