Synergism by sublimation of volatile lanthanide beta-diketonates

The synergistic effect by sublimation manifests itself in an increase in th e volatility of nonvolatile or slightly volatile compounds in the presence of highly volatile agents. In this study, manifestations of the synergistic effect are demonstrated by the evaporation of mixed ligand complexes, deri vatives of lanthanide acetylacetonates and neutral organic ligands, and by evaporation of the following mixtures: yttrium and zirconium acetylacetonat es, lanthanum and nickel dipivaloylmethanates and acetylacetonates, and lan thanum and aluminum acetylacetonates. (C) 2000 Elsevier Science S.A. All ri ghts reserved.