Bis[N,N-bis(diphenylphosphanyl) cyclopentanamine-kappa P-2,P ']platinum(II)bis(trifluoromethanesulfonate)

The title compound, [Pt(C29H29NP2)(2)](CF3SO3)(2), consists of a Pt-II atom, situated on an inversion centre, coordinated by two diphosphinoamine bidentate ligands and charge-balanced by two trifluoromethanesulfonate anions. The Pt-II atom has a distorted square-planar geometry defined by the four P atoms. The distortion is illustrated by the P-Pt-P bite angle of 70.31 (4)degrees. The geometry around the N atom deviates from a trigonal-planar geometry, evidenced by the P-N-P bite angle of 102.3 (2) degrees. The N atom is displaced by0.114 (4) angstrom from the C/P/P plane. In order to coordinate, the orientation of the phenyl rings alters from a C-s conformation to a C-2v conformation. The cyclopentane ring is slightly twisted: the puckering parameters are q(2) = 0.420 (5) angstrom and phi = 26.5 (8) degrees. The trifluoromethanesulfonate anion displays a 0.511 (11):0.489 (11) positional disorder. Weak inter- and intramolecular C-H center dot center dot center dot O hydrogen bonds influence the crystal packing.