Chemistry Journal of Moldova

Accepted papers

Elena Gorincioi, Eduard Coropceanu

Field: Inorganic and coordination chemistry
Type: Research paper
NMR, zinc, cadmium, oxime, homodinuclear complex, coordination polymer.
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Graphical Abstract: A series of homobi- and polynuclear zinc and cadmium coordination compounds supported by 1,2-cyclohexanedionedioxime and bridging bidentate ligands: 4,4'-bipyridyl, 1,2-bis(4-pyridyl) ethane, 1,3-bis(4-pyridyl) propane and dipiridil sulfide were characterized by the experimental techniques of 1H and 13C NMR spectroscopy. Individual NMR data of compounds are consistent with their assignment as complexes.


 

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Gheorghe Duca, Mihai Ciobanu, Tudor Lupascu, Igor Povar

Field: Physical chemistry and chemical physics
Type: Research paper
5
activated carbon, adsorption heat, entropy, exothermic process, strontium ion.
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Graphical Abstract: The adsorption of strontium ions from aqueous solutions on nut shells activated carbons (samples CAN-7 and CAN-8) at different temperatures has been studied. The isotherm of adsorption of strontium ions from aqueous solutions on activated carbon CAN-7 has two inflection points at relatively small and high equilibrium concentrations. As the temperature increases, the adsorption values decrease, which indicates that the adsorption process is exothermic.


 


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Oksana Stavinskaya, Iryna Laguta, Olga Kazakova, Pavlo Kuzema, Tudor Lupascu

Field: Physical chemistry and chemical physics
Type: Short communication
4
Enoxil, biomolecules, fumed silica, composite, hygroscopicity.
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Graphical Abstract: Enoxil-silica composites with various Enoxil-to-silica ratios were prepared by mechanical mixing of the biologically active Enoxil and fumed silica powders. The hygroscopic properties of the composites were studied by the gravimetric method. . It was found that hygroscopicity is reduced by 30÷40% when the Enoxil-to-silica mass ratio in the composites is 0.15÷0.35.

 Holding time in desiccators: 92 (1), 141 (2) and 365 (3) days.

 

Downloads: 26