Published in Russian Journal of General Chemistry
AbstractStability constants of new zinc complexes with β,βʹ-(ethylenediamine)-N,N-dipropionic acid: dichloro[β,βʹ-(ethylenediamine)-N,N-dipropionato]zinc and [β,βʹ-(ethylenediamine)-N,N-dipropionato]zinc hydrate were determined by potentiometric titration (Bjerrum’s method) using an unconventional approach in the case of the first complex.
Published in Russian Journal of General Chemistry
Abstract2-Aryl-5-butyl-1,3,4-oxadiazoles have been obtained in 59–85% yield via refluxing of equimolar amounts of a benzoic acid hydrazide with trimethyl orthovalerate in o-xylene. The effects of electron-donating substituents in the aryl fragment and solvent polarity on their spectral-luminescent properties have been revealed.
Published in Russian Journal of General Chemistry
AbstractCobalt-doped hydroxyapatite nanoparticles with various morphological parameters were obtained, and the effect of the dopant concentration and nanoparticle morphology on their thermal properties was studied.
Published in Russian Journal of General Chemistry
AbstractPb(II) cations form complexes with 1,5-dimethyl-4-[2-(3-methyl-5-oxo-1-phenyl-1,5-dihydro-4H-pyrazol-4-ylidene)hydrazinyl]-2-phenyl-1,2-dihydro-3H-pyrazol-3-one (HL) in an aqueous-ethanolic solution. The C42H41N13O9Pb2 compound has been isolated in the crystalline state and its spectral characteristics have been determined. As per X-ray dif...
Published in Russian Journal of General Chemistry
AbstractLow- and high-methoxylated pectins were synthesized and modified with anthranilic and salicylic acids to obtain effective polymeric ligands. On their basis, new copper(II) metal-polymer complexes were obtained, their composition was determined, stability constants and thermodynamic characteristics of the complex formation process were calcu...
Published in Russian Journal of General Chemistry
AbstractA new four-components post-Ugi transformation process has been studied. It provides an efficient access to biologically active piperazine-2,5-dione derivatives in high yield. The framework of piperazine-2,5-dione derivatives has been constructed by a tandem-decarboxylation of α-keto carboxylic acids promoted by a green catalyst trimethylsil...
Published in Russian Journal of General Chemistry
AbstractThe equilibrium processes of the formation of mononuclear and some binuclear silver(I) complexes with thiourea, N-acetylthiourea, thiosemicarbazide, N-phenylthiourea, and N,Nʹ-diphenylthiourea at 25°C and I = 0.11 M. (0.01 M HNO3 + 0.1 M NaNO3) in aqueous solution were studied by potentiometry method with a silver electrode. The stability c...
Published in Russian Journal of General Chemistry
AbstractOrganometallic complexes in many instances are characterised by potential anti-proliferative activity against different types of cancer cells. In particular, half-sandwich Ru(II)–arene and Co(II)-arene complexes exhibit in vitro and invivo anticancer activity. Here we report synthesis of two organometallic half-sandwich complexes containing...
Published in Russian Journal of General Chemistry
AbstractNew coordination compounds of terbium(III) and gadolinium(III) with alkoxybenzoic acids and 1,10-phenanthroline were prepared by the electrochemical synthesis method. The structure and some properties of the compounds synthesized were studied by IR spectroscopy and luminescence spectroscopy, as well as by thermogravimetry. Mixed-ligand comp...
Published in Russian Journal of General Chemistry
Abstracttrans-Dichloropalladium(II) complexes with amino acid esters PdCl2L2 have been synthesized via selective hydrolytic cleavage of the nitrogen–carbon bond in 1,3,5-tris(ethoxycarbonylmethyl)- and 1,3,5-tris[(S)-1′(methoxycarbonyl)ethyl]-1,3,5-triazinane under the action of palladium(II) in methanol or in water–acetone mixture. The nucleophili...
