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Six crystalline ferrates(VI): K3Na(FeO4)2, K2FeO4, Rb2FeO4, Cs2FeO4, K2Sr(FeO4)2 and BaFeO4, were studied by Mössbauer spectroscopy. Room-temperature spectra of potassium, rubidium and cesium ferrates are single lines, but spectra of barium, potassium–strontium and potassium–sodium ferrates show a presence of quadrupole interactions. Most of these salts display an antiferromagnetic transition with...
As a result of the Viking missions of the early 1970s, the presence of a strong oxidant in martian soil was suggested. Here we present a hypothesis, testable by near-term missions, that iron(VI) is a likely contributor to the martian oxidative pool. In this context, ferrate(VI) salts, with FeO 42- anion, were studied for their spectral and oxidative properties. Ferrate(VI) has distinctive...
Thirty years ago our laboratory ran experiments on semisynchronous cultures of animal and plant cells the results of which pointed to regular changes in a number of physical characteristics of the cells in the course of the cell cycle. Thus, in yeast cultures the appearance was detected of specific signals of electron paramagnetic resonance (EPR) with simultaneous change in their static magnetic...
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