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首页> 外文期刊>Acta Crystallographica, Section B. Structural Science >Structural trends and the electronic structure of the rare-earth oxomolybdates RMo5O8 (R = La, Ce, Pr, Nd, Sm, Eu and Gd) containing chains of bioctahedral Mo-10 clusters
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Structural trends and the electronic structure of the rare-earth oxomolybdates RMo5O8 (R = La, Ce, Pr, Nd, Sm, Eu and Gd) containing chains of bioctahedral Mo-10 clusters

机译：包含生物体面Mo-10簇链的稀土氧钼酸盐RMo5O8（R = La，Ce，Pr，Nd，Sm，Eu和Gd）的结构趋势和电子结构

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The crystal structures of the rare-earth members of the series RMo5O8 (R=Ce to Eu) have been investigated and compared with those of the La and Gd members previously published in order to understand the influences of the size and the charge of the cation on the different Mo-Mo bonds. The RMo5O8 compounds crystallize in the monoclinic space group P2(1)/c. Their crystal structure is characterized by bioctahedral Mo-10 clusters forming extended chains. The results of our single-crystal studies show that the modification of charge predominantly affects the Mo-Mo bonds between the Mo-10 clusters and, to a lesser extent, the intra-cluster distances, while the cationic size induces only small variations. Theoretical investigations confirm this statement and allow the understanding of the bonding mode in these compounds. [References: 20]
机译：为了了解阳离子的大小和电荷的影响，已经研究了RMo5O8系列稀土元素的晶体结构（R = Ce到Eu），并将其与先前发表的La和Gd成员的晶体结构进行了比较。在不同的Mo-Mo键上RMo5O8化合物在单斜空间群P2（1）/ c中结晶。它们的晶体结构的特征是生物十面体Mo-10团簇形成延伸链。我们的单晶研究结果表明，电荷的修饰主要影响Mo-10簇之间的Mo-Mo键，并在较小程度上影响簇内距离，而阳离子大小仅引起很小的变化。理论研究证实了这一说法，并允许理解这些化合物的键合模式。 [参考：20]

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