he work describes the growth of a ;The effect of iodine intercalation on the structure the 2:2:1:2 phase was determined. The X-Ray data indicate that the intercalation with iodine changed the crystal structure. The superconducting transition temperature decreased for the intercalated phase.;A model for the distribution of iodine and bismuth atoms in the average structure of the intercalated phase 2:2:1:2...