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Updated: Aug 24, 2026

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of Chalcogenidoplumbates(II or IV)
Published on: December 29, 2016
Dirubidium aquapentachlorochromate(III) and dicaesium aquapentachlorochromate(III)
Annika K Eriksson1, Barbara M Casari, Vratislav Langer
1Department of Inorganic Chemistry, Göteborg University, SE-41296 Göteborg, Sweden. anneka@chem.gu.se
Abstract:
The structures of the two novel title compounds, Rb(2)[CrCl(5)(H(2)O)], (I), and Cs(2)[CrCl(5)(H(2)O)], (II), have been determined by single-crystal X-ray diffraction. Compounds (I) and (II) crystallize with Pnma and Cmcm symmetry, respectively. In (I), the Cr, three Cl and water O atom lie on a mirror plane; in (II), the Cs, Cr, O and one of the Cl atoms are at sites with m2m symmetry. The chromate anions are in a pseudo-cubic environment of eight Rb(+) cations in (I) and in a pseudo-octahedral environment of six Cs(+) cations in (II). The structural arrangement correlates with the r(anion)/r(cation) radius ratio.
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