Syntheses, crystal structures and antimicrobial activities of Cu(ii), Ru(ii), and Pt(ii) compounds with an anthracene-containing tripodal ligand

Abstract

Three coordination polymers based on a tridentate N₃-coordinated anthracene-containing tripodal ligand, 9-[(2,2′-dipicolylamino)methyl]anthracene (ADPA), namely [Cu(ADPA)Cl₂]·H₂O (1), [Ru(ADPA)Cl₂DMSO]·4CH₃OH·2H₂O (2), and [Pt(ADPA)Cl]PF₆·DMSO·2CH₃OH·H₂O (3), were synthesized and characterized using elemental analysis, ¹H NMR, ¹³C NMR, FT-IR, and UV-vis spectroscopies, H RMS, and single-crystal XRD. X-ray structural analysis showed that the three compounds have mononuclear, 0D structures, which are further connected by hydrogen bonds into 3D supramolecular architectures. The antimicrobial activities of ADPA and compounds 1–3 were evaluated based on the minimum inhibitory concentration and minimum bactericidal concentration. The results showed that compounds 1–3 exhibit significant activities against Gram-positive bacteria (Staphylococcus aureus), and the Ru(II) and Pt(II) compounds have moderate antifungal activities (Candida albicans).