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Chemical preparation and crystal data for two hydrated cyclotriphosphates SrMIP3O9⋅3H2O and their corresponding anhydrous SrMIP3O9 (MI=K+ and Tl+)

Published online by Cambridge University Press:  06 March 2012

Kacem Sbai ,
Khadija El Kababi  and
Saïd Belaaouad
Kacem Sbai
Affiliation:
Laboratoire de Recherches de Chimie-Physique Générale, Faculté des Sciences Ben M’Sik, BP 7955, Casablanca, Morocco
Khadija El Kababi
Affiliation:
Laboratoire de Recherches de Chimie-Physique Générale, Faculté des Sciences Ben M’Sik, BP 7955, Casablanca, Morocco
Saïd Belaaouad*
Affiliation:
Laboratoire de Recherches de Chimie-Physique Générale, Faculté des Sciences Ben M’Sik, BP 7955, Casablanca, Morocco
*
a)Electronic mail: belaaouad@eudoramail.com
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Abstract

Methods of chemical preparation and crystal data are reported for four new condensed phosphates: two hydrated cyclotriphosphates with a general formula SrMIP3O9⋅3H2O (MI=K+,Tl+) and their corresponding anhydrous cyclotriphosphates SrMIP3O9 (MI=K+,Tl+). The two hydrated condensed phosphates, SrKP3O9⋅3H2O and SrTlP3O9⋅3H2O, belong to previously investigated structure types. SrKP3O9⋅3H2O and SrTlP3O9⋅3H2O are orthorhombic, Z=4, space group Pnma, with respectively the following unit-cell dimensions: a=9.082(2) Å, b=8.133(2) Å, c=15.009(2) Å, M(20)=49, F(25)=61(0.0052;79) and a=9.115(7) Å, b=8.139(7) Å, c=15.221(2) Å, M(20)=285, F(30)=522(0.000 411;140). SrKP3O9 and SrTlP3O9 are monoclinic, space group P21/m or P21, Z=4, with, respectively, the following unit-cell dimensions: a=14.957(1) Å, b=8.372(1) Å, c=7.909(1) Å, β=102.27(1)°, M(20)=81, F(24)=95(0.000 025;92) and a=14.544(2) Å, b=8.639(1) Å, c=7.727(1) Å, β=102.05(1)°, M(20)=66, F(30)=78(0.003 098;125).

Keywords

chemical preparationcrystal datacondensed phosphatescyclotriphosphates
Type
New Diffraction Data
Information
Powder Diffraction , Volume 18 , Issue 3 , September 2003 , pp. 233 - 235
Copyright
Copyright © Cambridge University Press 2005

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References

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