DIFFRACTION AND XPS STUDIES OF CU COMPLEXES OF INTERCALATED COMPOUNDS OF ALPHA-ZIRCONIUM PHOSPHATE .1. DERIVATION OF STRUCTURAL MODELS FROM POWDER DIFFRACTION DATA

Reasonable structural models are proposed for the Cu complexes of two intercalated compounds of alpha-Zr(HPO4)2 . H2O (alpha-ZrP): one with 1,10-phenanthroline (A) and the other with 2,2'-bipyridyl (B). The models are derived from considerations of the unit-cell geometry changes undergone by alpha-ZrP upon insertion of, first, the organic molecules and then copper, in accordance with a set of general criteria of structural analysis called the ''comparison method. ''