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Crystal structure of calcium perchlorate anhydrate, Ca(ClO4)2, from laboratory powder X-ray diffraction data.


ABSTRACT: The crystal structure of calcium perchlorate anhydrate was determined from laboratory X-ray powder diffraction data. The title compound was obtained by heating hydrated calcium perchlorate [Ca(ClO4)2·xH2O] at 623?K in air for 12?h. It crystallizes in the ortho-rhom-bic space group Pbca and is isotypic with Ca(AlD4)2. The asymmetric unit contains one Ca, two Cl and eight O sites, all on general sites (Wyckoff position 8c). The crystal structure consists of isolated ClO4- tetra-hedra and Ca2+ cations. The Ca2+ cation is coordinated by eight O atoms of eight symmetry-related ClO4- tetra-hedra within a distorted square-anti-prismatic environment.

SUBMITTER: Lee D 

PROVIDER: S-EPMC5946979 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature

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Crystal structure of calcium perchlorate anhydrate, Ca(ClO<sub>4</sub>)<sub>2</sub>, from laboratory powder X-ray diffraction data.

Lee Dongmin D   Bu Hyeri H   Kim Dohwan D   Hyoung Jooeun J   Hong Seung-Tae ST  

Acta crystallographica. Section E, Crystallographic communications 20180309 Pt 4


The crystal structure of calcium perchlorate anhydrate was determined from laboratory X-ray powder diffraction data. The title compound was obtained by heating hydrated calcium perchlorate [Ca(ClO<sub>4</sub>)<sub>2</sub>·<i>x</i>H<sub>2</sub>O] at 623 K in air for 12 h. It crystallizes in the ortho-rhom-bic space group <i>Pbca</i> and is isotypic with Ca(AlD<sub>4</sub>)<sub>2</sub>. The asymmetric unit contains one Ca, two Cl and eight O sites, all on general sites (Wyckoff position 8<i>c</i>)  ...[more]

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