Verres Céramiques Composites
Volume 4, Numéro 1, Pages 20-27
2015-06-25

Chemical Preparation, Crystallographic Characterization And Vibrational Study Of Two New Condensed Phosphates



Authors : Tridane Malika . Kheireddine Aziz . Fahim I. . Moutabbid H. . Tace E.m. . Charaf A. . Radid A. . Salahamen F. . Benmokhtar S. . Belaaouad S. .

Abstract

Chemical preparation, crystallographic characterization and vibrational studies are reported for two new condensed phosphates associated to nickel-rubidium NiRb4(P3O9)2 and strontium-thallium SrTl4(P3O9)2. SrTl4(P3O9)2 was prepared by the method of ion-exchange resin and NiRb4(P3O9)2 was obtained by total thermal dehydration of NiRb4(P3O9)2.6H2O. SrTl4(P3O9)2 is rhombhoedral , Z = 2, space group P-31c, with the following unit-cell parameters : a = 7,424(1) Å, c = 20,176(2) Å and V = 2807.46(2) (Å3). NiRb4(P3O9)2 is triclinic, Z = 2, space group P-1, with the following unit-cell parameters : a = 8,046(9) Å , b = 9,733(0) Å, c = 4,327(5) Å, α = 98.053°, β = 88.616°, γ = 84.761° and V = 333,95(2) (Å3). Vibrational study is also reported for the title compounds.

Keywords

Chemical preparation, crystallographic characterization, infrared spectrometry, NiRb4(P3O9)2, SrTl4(P3O9)2.

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