Vanadyl Binary Schiff Base Complexes Containing N<sub>2</sub>O<sub>2</sub>Coordination Sphere: Synthesis, Ab Initio Calculations and Thermodynamic Properties
作者:Mozaffar Asadi、Mohammad Hadi Ghatee、Susan Torabi、Khosro Mohammadi、Fatemeh Moosavi
DOI:10.5012/jkcs.2013.57.1.63
日期:2013.2.20
Some vanadyl complexes were synthesized by treating a methanolic solution of the appropriate Schiff base ligand and one equivalent of $VO(SO_4)_2$ to yield [($VOL_2^1-14}$)](L=Salicylaldehyde's derivatives, Schemes 1, 2). These oxovanadium (IV) complexes were characterized based on their FT-IR, UV-Vis spectroscopy and elemental analysis. The IR spectra suggest that coordination takes place through azomethine nitrogen and phenolate oxygen. In addition, the formation constants of the oxovanadium (IV) binary complexes were determined in methanolic medium. The ab initio calculations were also carried out to determine the structural and the geometrical properties of one of the complexes and its calculated vibrational frequencies were investigated.
Novel copper(II) and zinc(II) complexes of halogenated bidentate N,O-donor Schiff base ligands: Synthesis, characterization, crystal structures, DNA binding, molecular docking, DFT and TD-DFT computational studies
bidentate N,O-donor halogenated bis-Schiff base ligands (HL1: 4-Bromo-2-[(4-fluorophenylimino) methyl]phenol; HL2: 4-Bromo-2-[(4-chlorophenylimino)methyl]phenol; HL3: 4-Bromo-2-[(4-bromophenylimino) methyl]phenol; HL4: 4-Bromo-2-[(4- iodophenylimino)methyl]phenol) were synthesized and their structures were proved by SC-XRD, FT-IR, UV-Vis, and 1H NMR spectroscopic techniques. The single crystal X-ray diffraction
Synthesis, characterization and molecular docking studies of phenoxyimine based ligands: Cytotoxicity, hemolytic activity and antioxidant assessment
作者:Vinodkumar P. Sajjan、Lakkappa B. Anigol、Prabhuodeyara M. Gurubasavaraj、D. Kotresha、S.S. Pradhan、S. Venkatesh、Dhanashree Patil
DOI:10.1016/j.molstruc.2022.133457
日期:2022.10
spectroscopic techniques. All compounds were screened for cytotoxicityactivities against different cancer cell lines. Compound 3 exhibits significant cytotoxicactivity with an IC50 value of 1.099 µM, 1.132 µM against COLO-205 (Colorectal adenocarcinoma) and A-549 (Lung carcinoma) cell line respectively, while compound 4 exhibits noteworthy cytotoxicactivity with an IC50 value of 0.52 µM against MDA-MB-231(Breast
FabH, beta-ketoacyl-acyl carrier protein (ACP) synthase III, is a particularly attractive target, since it is central to the initiation of fatty acid biosynthesis and is highly conserved among Gram-positive and Gram-negative bacteria. A series of o-hydroxybenzylamines 1-16 and its corresponding new urea derivatives 17-32 were synthesized and fully characterized by spectroscopic methods and elemental analysis. This new urea derivatives class demonstrates strong antibacterial activity. Escherichia coli FabH inhibitory assay and docking simulation indicated that the compounds 1-(5-bromo-2-hydroxybenzyl)-1-(4-fluorophenyl)-3-phenylurea (18) and 1-(5-bromo-2-hydroxybenzyl)-1-(4-chlorophenyl)-3-phenylurea (20) were potent inhibitors of E. coli FabH. Crown Copyright (C) 2011 Published by Elsevier Ltd. All rights reserved.