title: Ammonium hexa-fluorido-phosphate-18-crown-6 (1/1).
abstract: In the crystal structure of the title compound, NH(4) (+)·PF(6) (-)·C(12)H(24)O(6), the cation is situated in the 18-crown-6 ring, forming a supra-molecular rotator-stator-like structure held by N-H⋯O hydrogen bonds. The six O atoms of the crown ether lie approximately in a plane [mean deviation 0.2129 (3) Å]; the N atom is displaced by 0.864 (3)Å from the centroid of the 18-crown-6 ring. The slightly distorted tetra-hedral cations further inter-act with the slightly distorted octa-hedral anions via inter-molecular N-H⋯F hydrogen bonds.
authors: College of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, People's Republic of China.
authors: De-Hong
authors: DH
authors: Wu
authors: Qi-Qi
authors: QQ
authors: Wu
references: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references: 18156677