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Antioxidant properties of selected 4-phenyl hydroxycoumarins: Integrated in vitro and computational studies
(Elsevier Ireland Ltd, Clare, 2014)
A study on the structure-activity relationship of three hydroxy 4-phenyl coumarins, carried out by employing a series of different chemical cell-free tests is presented. Different assays involving one redox reaction with ...
Spectroscopic and quantum chemical investigations of substituent effects on the azo-hydrazone tautomerism and acid-base properties of arylazo pyridone dyes
(Oxford : Pergamon-Elsevier Science Ltd, 2014)
A series of 5-(4-substituted arylazo)-6-hydroxy-4-methyl-3-cyano-2-pyridone dyes was synthesized and the structure of the dyes was confirmed by UV-Vis, FT-IR, H-1 NMR and C-13 NMR spectroscopic techniques. The azo-hydrazone ...
Theoretical study of substituent effects on structural properties of arylazo pyridone dyes
(Society of Physical Chemists of SerbiaDruštvo fizikohemičara Srbije, 2014)
Quantum chemical calculations performed by the density functional theory (DFT) were used to determine the structural parameters of arylazo pyridone dyes. The influence of electronic effects of substituent in diazo moiety ...
DFT investigation of the influence of Jahn-Teller distortion on the aromaticity in square-planar arsenic and antimony clusters
(Oxford : Pergamon-Elsevier Science Ltd, 2014)
Density functional theory (DFT) calculations were performed to investigate aromaticity of tetra atomic metalloid clusters, As-4(2-) and Sb-4(2-). The careful analysis of nuclear independent chemical shifts (NICS) revealed ...