The P atom in the title molecule, C12H26N3OP, has a distorted tetrahedral configuration: its bond angles lie in the range 101.1 (2)–119.1 (2)°. The P—N bonds to the two cyclopentylamido moieties are significantly different ...

A second monoclinic polymorph of the title molecule, C15H21FN3O4P, is reported in the space group P21/n and compared to the previously reported C2/c space group [Gholivand et al. (2006). Polyhedron, 25, 711–721]. The ...