名称:
Synthesis, characterization, and antibacterial activity of two zinc(II) complexes with Schiff bases derived from rimantadine
摘要:
The reactions of zinc(II) chloride and two Schiff base ligands derived from rimantadine and 5-chlorosalicylaldehyde/4-methoxysalicylaldehydes, generated two novel complexes [Zn(L-1)(2)Cl-2] (I) and [Zn(L-2)(2)Cl-2] (II), where L-1 = 2-((1-(1-adamantan-1-yl) ethyl)-iminomethyl)-4-chlorophenol, L-2 = 2-((1-(1-adamantan-1-yl) ethyl) iminomethyl)-5-methoxyphenol. The complexes were characterized by the means of IR, H-1 NMR, elemental analysis, molar conductance and thermal analysis. A single-crystal X-ray diffraction analysis reveals that both complexes crystallize in orthorhombic system, space group Fdd2 for I and Pbcn for II. In two complexes crystals, each asymmetric unit consists of one zinc(II) ion, two corresponding Schiff base ligands and two chlorine atoms; the central zinc atom lies on a twofold rotation axis and is four-coordinate via two chlorine atoms and two oxygen atoms from the Schiff base ligands, forming a distorted tetrahedral geometry.