N,N-Bis(diphenylphosphanyl)cyclopentanamine

The coordination around the N atom in the title compound, C29H29NP2, shows an almost planar geometry, defined by the attached P and C atoms, in order to accomodate the steric bulk of the phenyl rings. The distortion of the trigonal-pyramidal geometry of the N atom is illustrated by the bond angles ranging between 115.22 (12) and 121.76 (9)degrees. The P atoms present a pyramidal environment with bond angles ranging from 100.62 (9) to 104.71 (8)degrees. One of the C atoms in the cyclopentyl ring displays a 0.822 (4):0.178 (4) positional disorder. Within the crystal structure, intramolecular C-H center dot center dot center dot P hydrogen bonds together with inter-and intramolecular C-H center dot center dot center dot pi interactions link the molecules into a supra-molecular two-dimensional network.