Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 5 (May 2013)


metal-organic compounds



pk2473 scheme

Acta Cryst. (2013). E69, m284-m285    [ doi:10.1107/S1600536813010532 ]

(Tris{2-[2-(2,3,5,6-tetrafluoro-4-iodophenoxy)ethoxy]ethyl}amine)potassium iodide

G. Cavallo, H. Neukirch, P. Metrangolo, T. Pilati, G. Resnati and G. Terraneo

Abstract: The title adduct, [K(C30H24F12I3NO6)]I, gives an extended tape of cations linked through I...I- halogen bonds (XBs), two of them being quite short and one quite long. In the structure, the cation is hosted in a cavity formed by the arms of the podand which presents a closed conformation wherein two tetrafluoroiodobenzene rings are near parallel [dihedral angle = 15.8 (4)°; centroid-centroid distance = 3.908 (5) Å] and the third ring is closer to orthogonal [dihedral angles = 66.28 (14) and 75.20 (19)°] to the other two rings. The coordination sphere of the K+ cation is composed of the six O atoms, the N atom and an F atom in the ortho position of one of the rings.


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