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首页> 外文期刊>Russian Journal of Inorganic Chemistry >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 K_2NiF_4 and Sr_2CuO_3 Type Structures
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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 K_2NiF_4 and Sr_2CuO_3 Type Structures

机译:具有K_2NiF_4和Sr_2CuO_3型结构的La-Sr-Ni-O和R-Sr-Mn-O系统(R = La,Pr,Nd)中某些复合氧化物形成焓的计算

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摘要

The enthalpies of formation from simple ones for 13 complex oxides were calculated for the La-Sr-Ni-O systems with K_2NiF_4 and Sr_2CuO_3 type structures and the manganites R_(0.5)Sr_(0.5)MnO_4 (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.
机译:对于具有K_2NiF_4和Sr_2CuO_3型结构的La-Sr-Ni-O系统以及锰R_(0.5)Sr_(0.5)MnO_4(R = La,Pr,Nd),计算了13种复合氧化物的简单形成焓使用近似方法并考虑到配位阳离子和耐受因子变化的焓。热化学计算与在部分还原的镍酸盐中存在一价镍的结构解释不矛盾。

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