Synthesis, anti-bacterial and anti-fungal activities of some novel Schiff bases containing 2,4-disubstituted thiazole ring

In order to increase antibacterial abilities and avoid aggregation of Ag nanoparticles, Ag−SiO2 nanocomposites were studied to achieve hybrid structure. SiO2 nanoparticles synthesized by the Stober method served as seeds for immobilization of Ag. The chemical binding structure and morphology of Ag−SiO2 nanocomposites and SiO2 nanoparticles were investigated with X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). The antibacterial properties of Ag−SiO2 nanocomposites were examined with disk diffusion assay and minimum inhibitory concentration (MIC). Results showed that Ag nanoparticles are homogeneously formed on the surface of SiO2 nanoparticles without aggregation and showed excellent antibacterial abilities.

Synthesis and Characterization of Antibacterial Ag−SiO2 Nanocomposite

Recent applications of 1,3-thiazole core structure in the identification of new lead compounds and drug discovery.

Nickel (II) complexes of naphthaquinone thiosemicarbazone and semicarbazone: synthesis, structure, spectroscopy, and biological activity.

Spectral characterization, cyclic voltammetry, morphology, biological activities and DNA cleaving studies of amino acid Schiff base metal(II) complexes

Metal complexes of a new thiosemicarbazone derived from 3-acetylumbelliferone (HL) have been prepared and characterized. The complexes have the general formula ML2 · nH2O where MII = Co, Ni, Cu and Zn; n = 0 and 2. The ligand and its complexes have been studied for their possible antitumour activity against HL-60 human leukemia in vitro.

Antitumour activity of transition metal complexes with the thiosemicarbazone derived from 3-acetylumbelliferone

Synthesis, characterization, and antibacterial activity of novel Mn(II), Co(II), Ni(II), Cu(II), and Zn(II) complexes with vitamin K3-thiosemicarbazone.

The title complex, [Mn(C5H4NCO2)2(C5H4NCOOH)]OH, consists of a cation and a hydro­xide ion. The Mn atom is coordinated by three N atoms and three O atoms from three pyridine­carboxyl­ate ligands, and has a distorted octahedral geometry, with Mn—N distances ranging from 2.157 (1) to 2.233 (1) A and Mn—O distances from 1.910 (1) to 1.927 (4) A. One ligand is protonated as the acid form. This forms one of two independent hydrogen bonds, to the anion.

Bis­(pyridine­carboxyl­ato‐O,N)­(pyri­dine­carboxyl­ic acid‐O,N)­manganese(III) hy­drox­ide

The title compound, C22H20O6, has a central double bond of length 1.3694 (12) A. Two benzene rings, lying on different sides of the diethyl 2-butenedioate main chain, are almost parallel to each other and nearly perpendicular to the main chain. In the unit cell, two symmetry-equivalent mol­ecules are in general positions and two mol­ecules lie on inversion centres.

Min Wang

Papers

Antitumour activity of transition metal complexes with the thiosemicarbazone derived from 3-acetylumbelliferone

Synthesis, characterization, and antibacterial activity of novel Mn(II), Co(II), Ni(II), Cu(II), and Zn(II) complexes with vitamin K3-thiosemicarbazone.

Bis(pyridinecarboxylato‐O,N)(pyridinecarboxylic acid‐O,N)manganese(III) hydroxide

Diethyl trans‐2,3‐dibenzoyl‐2‐butenedioate

Min Wang

Papers

Antitumour activity of transition metal complexes with the thiosemicarbazone derived from 3-acetylumbelliferone

Synthesis, characterization, and antibacterial activity of novel Mn(II), Co(II), Ni(II), Cu(II), and Zn(II) complexes with vitamin K3-thiosemicarbazone.

Bis­(pyridine­carboxyl­ato‐O,N)­(pyri­dine­carboxyl­ic acid‐O,N)­manganese(III) hy­drox­ide

Diethyl trans‐2,3‐di­benzoyl‐2‐butenedioate

Bis(pyridinecarboxylato‐O,N)(pyridinecarboxylic acid‐O,N)manganese(III) hydroxide

Diethyl trans‐2,3‐dibenzoyl‐2‐butenedioate