Studies on electrchemical reduction of Cd(II) complexes with alkyl thioureas

The formation of Cd(II) complexes with alkyl thioureas $(Tu=H_2NCSNH_2, CH_3Tu, C_2H_5Tu, C_4H_9Tu)$ has been studied in aqueous solution. Basing on CV and polarographic results the 2-electrons reversible mechanism was assigned. With the aid of POLAG (nonlinear least squares iterative program) the overall stability constants $(log \beta\ _n=1-4)$ were estimated. The values of LUMO energy, heat of formation and electrostatic potential minima were obtained on the basis of quantum-chemical calculations. They confirmed the ealier established stability sequence of Cd(II) complexes with alkyl thioureas, namely $Tu<CH_3Tu<C_2H_5Tu<C_4H_9Tu$. The estimation of $E _\frac {1}{2}$ for 1:1 and 1:4 complexes was made by linear regression

The impact of modifications of hesperetin molecule on its DNA interaction

Медицинская экология: биомедицина, генетика, эпидемиологическая и гигиеническая оценки среды обитания человекаSynthesis and characterization of Schiff base derived from hesperetin and 2-amonobenzhydrazide has been carried out. Structural elucidation of the Schiff base was analyzed based on various spectroscopic techniques (FTIR, electronic absorption spectra, NMR, FAB MS). The synthesized compound has been characterized based on analytical methods, elemental analysis, thermal, magnetic, and spectral studies (IR, UV-visible, 1H NMR, 13C NMR). The results of the mass spectroscopic data are consistent with the data of elementary analysis. Moreover, the structures of the hesperetin Schiff base were confirmed by potentiometric titration and spectroscopic method

The impact of modifications of hesperetin molecule on its DNA interaction

Медицинская экология: биомедицина, генетика, эпидемиологическая и гигиеническая оценки среды обитания человекаSynthesis and characterization of Schiff base derived from hesperetin and 2-amonobenzhydrazide has been carried out. Structural elucidation of the Schiff base was analyzed based on various spectroscopic techniques (FTIR, electronic absorption spectra, NMR, FAB MS). The synthesized compound has been characterized based on analytical methods, elemental analysis, thermal, magnetic, and spectral studies (IR, UV-visible, 1H NMR, 13C NMR). The results of the mass spectroscopic data are consistent with the data of elementary analysis. Moreover, the structures of the hesperetin Schiff base were confirmed by potentiometric titration and spectroscopic method