Synthesis and crystal structure of a new polymorph of potassium europium(III) bis(sulfate) mono­hydrate, KEu(SO4)2·H2O

Acta Crystallographica Section E: Crystallographic Communications

Paul, A.K.¹ 

[1] Department of Chemistry, National Institute of Technology Kurukshetra, Haryana 136119, India

关键词: CRYSTAL STRUCTURE;    POLYMORPHISM;    TOPOLOGICAL ANALYSIS;   

DOI  :  10.1107/S2056989018000567

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

The mixed-metal sulfate, KEu(SO4)2·H2O, has been obtained as a new polymorph using hydro­thermal conditions. The crystal structure is isotypic with NaCe(SO4)2·H2O and shows a three-dimensional connectivity of the tetra­hedral sulfate units with EuIII and KI ions. Tricapped trigonal–prismatic EuO9 units and square-anti­prismatic KO8 units link the SO4 tetra­hedra, building the three-dimensional structure. Topological analysis reveals the existence of two nodes with 6- and 10-connected nets. The compound was previously reported [Kazmierczak & Höppe (2010). J. Solid State Chem. 183, 2087–2094] in the monoclinic space group P21/c with a similar structural connectivity and coordination environments to the present compound.

【 授权许可】

CC BY