Abstract
Displacement reactions of dichlorobismuth(III)pyrazolinates with oxygen donors such as sodium salicylate and acetate in 1 : 1 and 1 : 2 molar ratio in refluxing anhydrous benzene yields (C12H15N2OX)Bi(C6H4O3), (CH3COO)BiCl(C15H12N2OX), and (CH3COO)2Bi(C15H12N2OX) [C12H15N2OX = 3(2′-hydroxyphenyl)-5-(4-X-substituted phenyl) pyrazoline X = H in 1,5,9, CH3 in 2,6,10, OCH3 in 3,7,11, and Cl in 4,8,12, respectively, (C6H4O3) = salicylate and (CH3COO) = acetate]. Newly synthesized derivatives are brown solids, soluble in organic solvents like benzene, chloroform, and acetone. The compounds have been characterized by elemental analyses (C, H, N, Cl, and Bi), molecular weight measurements, and spectral (IR, 1H NMR, 13C NMR) studies. The (C12H15N2OX) and (C6H4O3) are bidentate while (CH3COO) is monodentate to bismuth(III), leading to a distorted trigonal bipyramidal structure. The complexes were screened against different bacteria and fungi showing potential antibacterial and antifungal activities.
Acknowledgments
J.S. Solanki is thankful to UGC for providing Rajeev Gandhi National Fellowship as SRF for the PhD Degree. We are also thankful to RSIC, CDRI Lucknow, India, for providing the spectral and analytical data.