Three-coordinate metal centers in extended transition metal oxides.
Three-coordinate metal centers in extended transition metal oxides.
复制标题
扩展过渡金属氧化物中的三配位金属中心。
DOI：
10.1021/ja064083g
复制
发表时间：
2006
影响因子：
15
通讯作者：
M. Rosseinsky
中科院分区：
文献类型：
--
作者：
A. Bowman;M. Allix;D. Pelloquin;M. Rosseinsky
n = 3的Ruddlesden-Popper相Sr3LaFe1.5Co1.5O10+/-δ能够维持低至O7.5的O含量，具有+2的平均金属氧化态和在原始八面体过渡金属位点的三层中的中心位点处的三个配位。缩短的轴向键的侧翼八面体层稳定的低氧化态和随之而来的不寻常的低配位数的Fe 2+和Co 2+阳离子内的扩展结构。
The n = 3 Ruddlesden-Popper phase Sr3LaFe1.5Co1.5O10+/-delta is capable of sustaining O contents as low as O7.5 with a mean metal oxidation state of +2 and three coordination at the central site in the trilayer of originally octahedral transition metal sites. The shortening of the axial bonds to the flanking octahedral layers stabilizes the low oxidation state and consequent unusual low coordination number of the Fe2+ and Co2+ cations within the extended structure.