Abstract Organic conductors containing supramolecular assemblies have been obtained from the galvanostatic oxidation of donor molecules with iodine-bearing neutral molecules and halide anions. For the obtained single crystals, X-ray crystal structure analyses along with electrical and magnetic measurements were carried out. (ET)3Br(2,5-BIEP) (ET = bis(ethylenedithio)tetrathiafulvalene; 2,5-BIEP = 2,5-bis(iodoethynyl)pyridine) is isostructural with the prototype compound (ET)3Br(pBIB) (pBIB = p-bis(iodoethynyl)benzene), whereas (MT)4X(DFBIB) (MT = bis(methylenedithio)tetrathiafulvalene; DFBIB = 1,4-difluoro-2,5-bis(iodoethynyl)benzene; X = Br and Cl) and (HMTSF)4Cl3(pBIB)3(PhCl)x (HMTSF = hexamethylenetetraselenafulvalene) differ considerably from (ET)3Br(pBIB) in structure and, consequently, physical properties. The (MT)4X(DFBIB) system exhibits a novel two-dimensional donor packing, and represents the first example of the charge ordering in molecular conductors containing supramolecular assemblies based on the halogen bond. (HMTSF)4Cl3(pBIB)3(PhCl)x is characterized by isolated one-dimensional donor columns.