Structure, infrared and Raman spectroscopic studies of newly synthetic AIISbV0.50FeIII0.50PO42 A = Ba, Sr, Pb phosphates with yavapaiite structureReport as inadecuate




Structure, infrared and Raman spectroscopic studies of newly synthetic AIISbV0.50FeIII0.50PO42 A = Ba, Sr, Pb phosphates with yavapaiite structure - Download this document for free, or read online. Document in PDF available to download.

* Corresponding author 1 Faculté des Sciences Ben M-sik Casablanca 2 MHN - Matériaux Hybrides et Nanomatériaux LCMCP - Laboratoire de Chimie de la Matière Condensée de Paris 3 UPMC - Université Pierre et Marie Curie - Paris 6 4 UMR 8247 - Institut de Recherche de Chimie Paris

Abstract : The synthesis and structural study of three new AIISbV0.5FeIII0.5PO42 Adouble bond; length as m-dashBa, Sr, Pb phosphates belonging to the Asingle bond-Sbsingle bond-Fesingle bond-Psingle bond-O system were reported here for the first time. Structures of Ba, Sr and Pb compounds, obtained by solid state reaction in air atmosphere, were determined at room temperature from X-ray powder diffraction using the Rietveld method. BaIISbV0.5FeIII0.5PO42 Ba features the yavapaiite-type structure, with space group C2-m, Z = 2 and a = 8.15684 Å; b = 5.19963 Å c = 7.82904 Å; β = 94.531°. AIISbV0.5FeIII0.5PO42 Adouble bond; length as m-dashSr, Pb compounds have a distorted yavapaiite structure with space group C2-c, Z = 4 and a = 16.52152 Å; b = 5.18911 Å c = 8.04891 Å; β = 115.701° for Sr; a = 16.69252 Å; b = 5.18321 Å c = 8.12151 Å; β = 115.031° for Pb. Raman and Infrared spectroscopic study was used to obtain further structural information about the nature of bonding in selected compositions.rtain.

Keywords : Yavapaiite structure Raman and IR spectroscopy Rietveld analysis Antimony and Iron phosphate





Author: Abderrahim Aatiq - My Rachid Tigha - Rachid Fakhreddine - Damien Bregiroux - Gilles Wallez -

Source: https://hal.archives-ouvertes.fr/



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