Thakur Gohil S, Reuter Hans, Felser Claudia, Jansen Martin
Max Planck Institut for Chemical Physics of Solids, Nöthnitzer Straβe 40, 01187, Dresden, Germany.
Institute for Chemistry of New Materials, University of Osnabrück, Barbarastrasse, 7, 49076 Osnabrück, Germany.
Acta Crystallogr E Crystallogr Commun. 2019 Jan 1;75(Pt 1):30-32. doi: 10.1107/S2056989018017176.
The crystal structure redetermination of SrPdO (distrontium palladium trioxide) was carried out using high-quality single-crystal X-ray data. The SrPdO structure has been described previously in at least three reports [Wasel-Nielen & Hoppe (1970 ▸). . , 209-213; Muller & Roy (1971 ▸). . , 28-38; Nagata (2002 ▸). , 50-56], all based on powder X-ray diffraction data. The current structure refinement of SrPdO, as compared to previous powder data refinements, leads to more precise cell parameters and fractional coordinates, together with anisotropic displacement parameters for all sites. The compound is confirmed to have the ortho-rhom-bic SrCuO structure type (space group ) as reported previously. The structure consists of infinite chains of corner-sharing PdO plaquettes inter-spersed by Sr atoms. A brief comparison of SrPdO with the related KNiF structure type is given.
利用高质量单晶X射线数据对SrPdO（三氧化二锶钯）的晶体结构进行了重新测定。SrPdO的结构此前至少在三篇报告中有所描述[瓦塞尔 - 尼尔森和霍佩（1970 ▸）......，209 - 213；米勒和罗伊（1971 ▸）......，28 - 38；永田（2002 ▸）......，50 - 56]，所有这些报告均基于粉末X射线衍射数据。与之前的粉末数据精修相比，目前对SrPdO的结构精修得出了更精确的晶胞参数和分数坐标，以及所有位点的各向异性位移参数。该化合物被证实具有如先前报道的正交晶系SrCuO结构类型（空间群）。其结构由角共享的PdO平面无限链组成，这些链被Sr原子穿插。文中还对SrPdO与相关的KNiF结构类型进行了简要比较。
