Results 81 to 90 of about 70,902 (254)

Synthesis, Characterization and Antibacterial Activity of Cefalexin Dervatives

مجلة بغداد للعلوم, 2015
New series of Schiff bases 2(a-j) and corresponding beta-lactam derivatives 3(a-j) were synthesized from cefalexin (1) as starting material. The compound (1) was reacted with different aldehydes and ketones to give Schiff bases derivatives 2(a-j).
Baghdad Science Journal
doaj   +1 more source

Metal complexes as potential ligands : the deprotonation of aminephenolate metal complexes [PDF]

, 2010
The cationic nickel, copper and zinc complexes of tris-(2-hydroxybenzyl)-aminoethylamine (H6TrenSal) have been deprotonated using potassium hydroxide. The nickel complex can be sequentially deprotonated to form a series of compounds namely, [(H6TrenSal ...
Kennedy, Alan R., Mustapha, Abdullahi, Reglinski, John   +2 more
core   +1 more source

Metal-Based Biologically Active Compounds: Synthesis, Spectral, and Antimicrobial Studies of Cobalt, Nickel, Copper, and Zinc Complexes of Triazole-Derived Schiff Bases

Bioinorganic Chemistry and Applications, 2011
A series of cobalt, nickel, copper, and zinc complexes of bidentate Schiff bases derived from the condensation reaction of 4-amino-5-mercapto-3-methyl/ethyl-1,2,4-triazole with 2,4-dichlorobenzaldehyde were synthesized and tested as antimicrobial agents.
Kiran Singh, Yogender Kumar, Parvesh Puri, Chetan Sharma, Kamal Rai Aneja   +4 more
doaj   +1 more source

Synthesis, Characterization of Derivatives Tetrazoles for Trimethoprim Drug

مجلة بغداد للعلوم, 2016
The present work involved synthesis of serval new substituted tetrazole via Schiff bases for trimethoprim drug by two steps. The first step involved direct reaction of different ketones and aldehydes with trimethoprim producing the corresponding Schiff ...
Baghdad Science Journal
doaj   +1 more source

Multiconfiguration Dirac-Hartree-Fock calculations of atomic electric dipole moments of 225^Ra, 199^Hg, and 171^Yb

, 2013
The multiconfiguration Dirac-Hartree-Fock (MCDHF) method has been employed to calculate atomic electric dipole moments (EDM) of 225^Ra, 199^Hg, and 171^Yb.
Biero, Jacek, Gaigalas, Gediminas, Jonsson, Per, Radziute, Laima   +3 more
core   +1 more source

Propiedades espectroscópicas y electroquímicas de complejos de Ni (II) y Cu (II) con algunas bases de Schiff tetradentadas [PDF]

, 2019
Se informa sobre la sfntesis y caracterización de complejos de níquel (II) y cobre (II) con bases de Schiff tetradentadas derivadas de salicilaldehfdos brornosustituidos y 1,2 diarninoetano y 1,3 diarninopropano. Se realizaron mediciones de voltametr(a c(
Costamagna M., Juan, Vargas M., Juan
core   +1 more source

Searching for a Connection Between Matroid Theory and String Theory [PDF]

, 2002
We make a number of observations about matter-ghost string phase, which may eventually lead to a formal connection between matroid theory and string theory.
Achucarro, Aganagic, Anderson, Anderson, Awada, Banks, Birkhoff, Bland, Castro, Castro, Crapo, Dolan, Duff, Duff, Duff, Englert, Ferreira, Gamboa, Garcı́a-Compeán, Gelfand, Gopakumar, Gopakumar, Gursey, Horava, J. A. Nieto, Kauffman, Kutasov, Kutasov, MacLane, Marı́n, Martinec, Martinec, Montano, Murasugi, Nair, Nieto, Nieto, Nieto, Nieto, Ooguri, O’Loughlin, Przanowsky, Schiff, Schild, Schwarzler, Susskind, Tekin, Thistlethwaite, Tutte, Tutte, Vafa, Whitney, Witten, Witten, Witten, Zaikov, Zaikov, Zaikov, Zaslavsky, Zaslavsky   +59 more
core   +4 more sources

Effect of OH position on adsorption behavior of Schiff-base derivatives in corrosion inhibition of carbon steel in 1 M HCl

Electrochemistry Communications
In this work, we have synthesized two new Schiff-bases from 2,2-dimethylpropane-1,3-diamine and n-hydroxy-n-methoxybenzaldehyde. The synthesized Schiff-bases were characterized by 1H NMR, 13C NMR.
Hojat Jafari, Elham Ameri, Mohammad Hassan Vakili, Avni Berisha   +3 more
doaj   +1 more source

Physicochemical Studies of Some Schiff Bases Derived From 6-Ethylbenzene 1,3-diol

E-Journal of Chemistry, 2004
The schiff bases were synthesized and their characterization was done by CHN analysis, IR and NMR spectra. The physicochemical properties such as density, refractive index, conductance, heat of solution etc., of these schiff bases were ...
Shipra Baluja
doaj   +1 more source

Synthesis and Spectroscopic Studies of New Schiff Bases

Molecules, 2006
Five novel Schiff bases have been prepared from o-formylphenoxyacetic acidand a series of aminothiazoles to form a number of potentially biologically activecompounds.
W. Weaver, Saeed Ahmad, Amjid Iqbal, Hamid Latif Siddiqui   +3 more
doaj   +1 more source