Calculation of the enthalpies of formation of some complex oxides in the La-Sr-Ni-O and R-Sr-Mn-O systems (R = La, Pr, Nd) with K2NiF4 and Sr2CuO3 type structuresстатья
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Дата последнего поиска статьи во внешних источниках: 2 апреля 2015 г.
Аннотация:The enthalpies of formation from simple ones for 13 complex oxides were calculated for the La-Sr-Ni-O systems with K2NiF4 and Sr2CuO3 type structures and the manganites R0.5Sr0.5MnO4 (R = La, Pr, Nd) using approximate methods and taking into account the enthalpies of change in coordination cation and tolerance factors. The thermochemical calculations do not contradict the structural interpretation of the existence of univalent nickel in partially reduced nickelates.