Bi- and Tetranuclear Bromide Complexes of Antimony(III) and Bismuth(III) with 1,1'-(Hexane-1,6-diyl)bis(3-halopyridinium) Cations

Five new bromide complexes of antimony(III) and bismuth(III) with dicationic species (3‑ClPyC6)[SbBr6]2 (I), (3-ClPyC6)2[Sb4Br16] (II), (3-ClPyC6)3[Bi2Br9]2 (III), (3-BrPyC6)3[Sb2Br9]2 (IV), and (3-BrPyC6)3[Bi2Br9]2 (V) based on substituted 3-halopyridines {(3-XPy)2(CH2)6}2+ (X = Cl, Br) were obtained. The structures of the compounds were determined by X-ray diffraction analysis (CCDC nos. 2457726–2457730). The features of halogen···halogen interactions between the cations and anions were analyzed.