Crystal structure and thermal behavior of a new lead nitrate cyanoferrate(III)

A new lead cyanoferrate(III) with a mixed anionic sublattice Pb-2[Fe(CN)(6)] center dot NO3 center dot 5.5H(2)O was synthesizcd, and its structure and thermal properties were studied. The compound crystallizes in the monoclinic system. The structure is stabilized by water molecules that combine the main structural elements through bridging (Pb-O-w-Pb) and hydrogen ((OH)-H-...-O) bonds. The destruction of the crystal hydrate of lead cyanoferrate(Ill) takes place in the temperature range 120-150 degrees C. The thermolysis yields anhydrous Pb1.5Fe(CN)(6) (trigonal) and Pb(NO3)(2) (cubic), which were identified by X-ray powder diffraction and IR spectroscopy.