[en] By electron and vibrational absorption spectra and ESR data diphthalocyanine complexes of lutetium and dysprosium (LnPc₂) and their cationic salts, formed under the effect of halogen vapours on sublimated layers of the compounds, have been investigated. The conclusion is made that both in neutral molecule of LnPc₂ and in monocation two phthalocyanine ligands have identical electronic structure. In the presence of halogenohydrogen LnPc₂ forms a protonated form. In spectra of LnPc₂ and their monocations bands of intermolecular charge transfer, position and intensity of which depends on the layer crystal structure, are detected