Cesium ozonide

Crystal structure
	__ O 3 - __ Cs +
Crystal system	monoclinic
Space group	P 2 1 / c (No. 14)
Lattice parameters	a = 675.1 pm, b = 626.7 pm, c = 901.5 pm, β = 120.74 °
General
Surname	Cesium ozonide
Ratio formula	CsO 3
Brief description	red solid
External identifiers / databases
Wikidata	Q1025482
properties
Molar mass	164.9 g mol −1
Physical state	firmly
density	3.19 g cm −3 (20 ° C)
Melting point	53 ° C (decomposition)
solubility	Decomposes in water
safety instructions
GHS hazard labeling ; no classification available
GHS hazard labeling ; no classification available
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Cesium ozonide is a chemical compound of cesium and is one of the ozonides . It is a red, easily decomposable solid.

Extraction and presentation

Cesium ozonide can be obtained by reacting cesium hyperoxide with ozone and then extracting it with liquid ammonia .

{\ displaystyle {\ ce {CsO2 + O3 -> CsO3 + O2}}}

Cesium ozonide is a red solid that crystallizes in two different modifications . The monoclinic structure, which corresponds to that of rubidium ozonide , is stable below 8 ° C. This has the space group P 2 ₁ / c (space group no. 14) and the lattice constants a = 675.1 pm, b = 626.7 pm, c = 901.5 pm and β = 120.74 °, as well as four formula units per unit cell . At higher temperatures the structure corresponds to the cubic cesium chloride structure with the lattice parameter a = 436.06 pm. The ozonide ion is disordered . Template: room group / 14

Above 53 ° C, cesium ozonide decomposes, releasing oxygen and forming hyperoxide .

{\ displaystyle {\ ce {2CsO3 -> [53 \, ^ {o} C] 2CsO2 + O2 ^}}}

If cesium ozonide is dissolved in water, it reacts to form cesium hydroxide and oxygen .

{\ displaystyle {\ ce {4CsO3 + 2H2O -> 5O2 + 4CsOH}}}

^ ^A ^b V. I. Sokol, VV Matvee, II Vol'nov: Determination of the density and refractive index of cesium ozonide . In: Russian Chemical Bulletin . tape 15 , no. 12 , 1966, pp. 2169-2171 , doi : 10.1007 / BF00867730 .
↑ ^a ^b ^c ^d M. Jansen, W. Hesse: Representation, crystal structure and properties of cesium ozonide . In: Journal of Inorganic and General Chemistry . tape 560 , no. 1 , May 1988, pp. 47-54 , doi : 10.1002 / zaac.19885600106 .
^ ^A ^b A. F. Holleman , E. Wiberg , N. Wiberg : Textbook of Inorganic Chemistry . 102nd edition. Walter de Gruyter, Berlin 2007, ISBN 978-3-11-017770-1 , pp. 1285-1286.
↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.