Low-dimensional compounds containing bioactive ligands. Part XVII: Synthesis, structural, spectral and biological properties of hybrid organic-inorganic complexes based on [PdCl] with derivatives of 8-hydroxyquinolinium.

In this study, four hybrid organic-inorganic compounds (8-HQ)[PdCl] (1), (HClQ)[PdCl] (2), (HNQ)[PdCl] (3) and (HMeQ)[PdCl]·2HO (4) (where 8-HQ = 8-hydroxyquinolinium, HClQ = 5-chloro-8-hydroxyquinolinium, HNQ = 5-nitro-8-hydroxyquinolinium and HMeQ = 2-methyl-8-hydroxyquinolinium) were synthesized through organic cation modulation. Single-crystal X-ray structure analysis of compounds 1 and 3 indicates that their structures are planar and consist of [PdCl] anions and 8-HQ or HNQ cations, respectively. Both ionic components are held together through ionic interactions and hydrogen bonds forming infinite chains linked through π-π interactions to form 2D structures.