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A Tetragonal Polymorph of Caesium Hydroxide Monohydrate, CsOH X H2O, From X-ray Powder Data

A Tetragonal Polymorph of Caesium Hydroxide Monohydrate, CsOH X H2O, From X-ray Powder Data

Radovan Cerný, Vincent Favre-Nicolin, Bernard Bertheville

Acta Crystallogr C. 2002 Mar;58(Pt 3):i31-2.

PMID: 11870275

Abstract:

Tetragonal caesium hydroxide monohydrate, CsOH x H(2)O, a clathrate hydrate, is a polymorph of three known hexagonal or pseudo-hexagonal modifications. It was obtained as a by-product in a high-pressure experiment. Whether it is a high-pressure polymorph, however, remains to be verified. The Cs atoms are situated in cavities of the form of a bicapped pentagonal prism, within an infinite three-dimensional hydrogen-bonded oxygen framework that is locally identical to layers found in the hexagonal modifications. The Cs atom and one of the two H atoms are at sites with (macro)4m2 symmetry, the O atom has mm site symmetry and the second H atom has 2/m symmetry.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP35103798	Cesium hydroxide monohydrate		35103-79-8	Price

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