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245.052  Articles
1 of 24.506 pages  |  10  records  |  more records»
The present paper deals with the synthesis of cobalt(II), nickel(II), copper(II) and cadmium(II) complexes with two bidentate ligands, L1 (3-(quinoxaline-2-yl)-coumarin) and L2 (2-methylene-2H-chromene-3-(methyl carbonimidic)thioanhydride). The L1 ligand ... see more

The paper considers the outcomes of theoretical research of the first six forms of free vibration of metallic span structures with box-like close elements and the design span size of110 m, of 3.501.2-139 series.

Metal complexes of Methionine-phenylhydrazone (MPH) Schiff base were synthesized and experimentally characterized using FT-IR and UV-vis spectroscopy. The synthesized structures: MPH, Fe(MPH)2T2, and Mn(MPH)2T2 were theoretically studied using advanc... see more

A Schiff base ligand L was synthesized by condensation of 1,2-diam­inoethane with creatinine. The reaction of the ligand with metal chloride salt gives Co(II) and Cu(II) complexes. The synthesized ligand and its metal com­plexes were characterized by elem... see more

Transition metal complexes of Cu(II), Co(II), Ni(II), Zn(II), Cd(II) and Mn(II) have been synthesized with the Schiff base ligand 5-Sub-N-(2-mercaptophenyl)salicylideneimine. Elemental analysis of these complexes suggest that these metal ions forms comple... see more

The metal(II) ion complexes of a pentadentate macrocycle 1, namely 3,12-dioxa-6,9,18-triazabicyclo[12.3.1]octadeca-1(18),14,16-triene-2,13-dione are synthesized. This macrocycle is prepared from the reaction of dipotassium salt of 2,6-pyridinedicarboxylic... see more

A model luminescent [(PhCO2)4Cu4] (Cu4) complex in the crystalline state was investigated via combined crystallographic and spectroscopic techniques contributed substantially by theoretical modelling. The complex appeared to exhibit luminescence thermochr... see more

The reaction of methyldopa with o-vanillin in refluxing ethanol afforded Schiff base and characterized through physical analysis with a number of spectra also the study of biological activity. The geometry of the Schiff base was identified through using (... see more

Novel metal complexes of Co(II) and Ni(II) have been  prepared from reaction of their different salts with previously prepared ligand (L) namely (N,N'-(1,2-phenylene)bis(2-aminobenzamide). Synthesis ligand and its metal (II) complexes (1-5) were repo... see more

1 of 24.506 pages  |  10  records  |  more records»