Volume 468, Nº 1 (2016)

The process of electroreduction of bromate anion BrO₃ in acidic solutions at catalytically inactive electrodes when bromate anions are in excess compared to protons has been studied by numerical integration of transport equations. Under these conditions, the maximum possible current is limited by the limiting diffusion current of protons (rather than bromate), since both ions are consumed in the comproportionation reaction. It has been demonstrated that the curve of maximum current versus diffusion layer thickness has an anomalous segment where the current increases with an increase of the latter.

Quantum-chemical study (B3LYP*/6-311++G(d,p)) has shown that the Fe(II) complex containing the phenanthroline ligand with annelated chromene and dihydrobis(pyrazol-1-yl)borate anions is able to exhibit thermally induced spin crossover. The calculations predict that the magnetic properties of this compound can be controlled by irradiation (LIESST and LD LISC effects).

Porous iron-substituted tricalcium phosphate (FeTCP) ceramics with a Fe content of 0.49 and 1.09% has been developed. The hydrostatically estimated ceramics porosity is 40–45%. The solubility of ceramics in an isotonic solution has been studied. The solubility rate of FeTCP ceramics is slightly higher as compared with iron-free ceramics. Based on the results of in vitro tests of FeTCP ceramics on cultured fibroblasts, these materials are believed to be biocompatible. The developed materials can be recommended for use in medicine in the treatment of diseases associated with bone lesions.