Evaluarea legăturilor intermoleculare de hidrogen în compușii multicomponenți ai [Co(NH3)6]3+ cu acid 3-sulfobenzoic prin analiza suprafeței Hirshfeld

Abstract

Cobalt complexes, especially those of Co(III) play an increasingly significant role due to their therapeutic use as excellent anticancer, antiviral and antibacterial agents. This study analyzes the role of intermolecular bonds and their quantitative and qualitative investigation between organic acids and the cobalt(III) hexaamine complex cation in molecular crystals. Accordingly, a new series of multicomponent compounds containing the complex cation [Co(NH3)6]3+ obtained upon interaction with the ligand 3-sulfobenzoic acid (H2sb) was synthesized and characterized: [Co(NH3)6]2Cl2(3-sb)(SO4)∙7H2O (1), [Co(NH3)6]Cl(3-sb)∙H2O (2) and {Na[Co(NH3)6]Cl2(3-sb)}n (3). The single crystal X-ray diffraction study reveals that in these compounds the [Co(NH3)6] 3+ cation serves as the basic element for the incorporation of various anions/molecules and promotes the formation of multicomponent compounds with extensive charge-supported networks between cations and anions and crystallization molecules through H-bonds between both positively and negatively charged components.