Dicyanamide-interlaced assembly of Zn(II)-schiff-base complexes derived from salicylaldimino type compartmental ligands: Syntheses, crystal structures, FMO, ESP, TD-DFT, fluorescence lifetime, in vitro antibacterial and anti-biofilm properties

Two new dicyanamide-interlaced tetranuclear Zn(II)-Schiff-base complexes [Zn2(LOMe)(µ-dca-κN1κN5)(µ-dca-κN1)]2 (1) and [Zn2(LOEt)(µ-dca-κN1κN5)(µ-dca-κN1)]2 (2) were synthesized by using salicylaldimino type Schiff bases (H2LOMe) and (H2LOEt) respectively. Schiff base ligands and the complexes were characterized by elemental analyses, powder X-ray diffraction, FT-IR, FT-Raman, 1H NMR, 13C NMR, UV–Vis, TGA and fluorescence spectroscopy....