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Crystal structure of CsCrAs2O7, a new member of the diarsenate family.

ABSTRACT: Caesium chromium(III) diarsenate(V), CsCrAs2O7, was prepared by solid-state reactions. The title structure consists of isolated CrO6 octa-hedra and As2O7 diarsenate groups, sharing corners to build up a three-dimensional [CrAs2O7](-) anionic framework. In this framework, channels extending parallel to [001] are present in which the ten-coordinate Cs(+) ions reside. CsCrAs2O7 is isotypic with the monoclinic A (I) M (III) X 2O7 (A (I) = alkali metal; M (III) = Al, Cr, Fe; X = As, P) type I family of compounds crystallizing in the space group P21/c.

SUBMITTER: Bouhassine MA

PROVIDER: S-EPMC4459375 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature

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Crystal structure of CsCrAs2O7, a new member of the diarsenate family.

Bouhassine Mohamad Alem MA Boughzala Habib H

Acta crystallographica. Section E, Crystallographic communications 20150516 Pt 6

Caesium chromium(III) diarsenate(V), CsCrAs2O7, was prepared by solid-state reactions. The title structure consists of isolated CrO6 octa-hedra and As2O7 diarsenate groups, sharing corners to build up a three-dimensional [CrAs2O7](-) anionic framework. In this framework, channels extending parallel to [001] are present in which the ten-coordinate Cs(+) ions reside. CsCrAs2O7 is isotypic with the monoclinic A (I) M (III) X 2O7 (A (I) = alkali metal; M (III) = Al, Cr, Fe; X = As, P) type I family ...[more]

PMID: 26090138

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