INTERCALATION OF HYDRAZINES IN LEAD IODIDE

Hydrazine and methylated hydrazines were intercalated into thin films and crystalline powders of lead iodide. Interplanar spacing increased with increasing methylation. Weight gain and X-ray data provide estima tes of the guest orientation. All three guest molecules have their maj or axis approximately perpendicular to the layers of the host. The lar ge optical band-edge shifts in this intercalation decreased with incre asing methylation. Intercalation of 1,2-dimethylhydrazine produces the first evidence for staging in the heavy-metal iodide systems.