Synthesis, Structural Characterization, Antimicrobial Activity, and In Vitro Biocompatibility of New Unsaturated Carboxylate Complexes with 2,2'-Bipyridine.

The synthesis, structural characterization, cytotoxicity, and antimicrobial properties of four new complexes formed by employing acrylate anion and 2,2'-bipyridine are reported herein. X-ray crystallography revealed the trinuclear nature of [Mn₃(2,2'-bipy)₂(C₃H₃O₂)₆] (), meanwhile complexes with general formula [M(2,2'-bipy)(C₃H₃O₂)₂(H₂O)]∙H₂O (() M: Ni, = 1, = 0; () M: Cu, = 1, = 0; () M: Zn, = 0, = 1; 2,2'-bipy: 2,2'-bipyridine; C₃H₃O₂: acrylate anion) were shown to be mononuclear. The lowest minimum inhibitory concentration (MIC) of 128 μg mL was recorded for all four tested complexes against , for complex () against , and for complex () against .

Synthesis, Physico-chemical Characterization, Crystal Structure and Influence on Microbial and Tumor Cells of Some Co(II) Complexes with 5,7-Dimethyl-1,2,4-triazolo[1,5-a]pyrimidine.

Three complexes, namely [Co(dmtp)₂(OH₂)₄][CoCl₄] (), [Co(dmtp)₂Cl₂] () and [Co(dmtp)₂(OH₂)₄]Cl₂∙2H₂O () (dmtp: 5,7-dimethyl-1,2,4-triazolo[1,5-]pyrimidine), were synthesized and characterized by spectral (IR, UV-Vis-NIR), and magnetic measurements at room temperature, as well as single crystal X-ray diffraction. Complex () crystallizes in monoclinic system (space group 2/c), complex () adopts an orthorhombic system (space group bca), and complex () crystallizes in triclinic system (space group P1). Various types of extended hydrogen bonds and π-π interactions provide a supramolecular architecture for all complexes.