Diphenyl (cyclo-pentyl-amido)-phosphonate

Abstract

In the title molecule, C17H20NO3P, the P atom is bonded in a distorted tetra-hedral environment. The dihedral angle between the two phenyl rings is 23.52 (10)°. The phosphoryl and N-H groups are anti with respect to one another. The -CH2-CH2-CH 2-CH2- sequence of atoms in the cyclopentyl ring is disordered over two sets of sites with refined occupancies of 0.574 (10) and 0.426 (10). In the crystal, molecules are linked via N-H⋯O=P hydrogen bonds to form extended chains along [010].