Synthesis, spectral, magnetic, and thermal properties of Ge(IV) tetrachlorocobaltates complexes with 2-hydroxyarylaldehydes pyridinoyl(aminobenzoyl) hydrazones

Resumo

The interaction in the GeCl₄–nicotinoyl(isonicotinoyl, 2-, or 4-aminobenzoyl) hydrazone of 2-hydroxybenz(2-hydroxy-1-naphth)aldehyde (H₂L)–CoCl₂–methanol systems has resulted in the formation of [Ge(L·H)₂][CoCl₄]·nCH₃OH complexes with germanium chelates [Ge(L·H)₂]²⁺ protonated at the exo chelate nitrogen atom (N_Py or NH₂) as the cation. The type of electrolytic dissociation and character of thermolysis of the complexes have been revealed. Spectral, thermal, and magnetic properties of the complexes have been studied.