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Quillard, S., Mevellec, J.-Y., Deniard, P., Bouler, J.-M. & Buisson, J.-P. (2016) Polarized Raman spectra of brushite (CaHPO4.2H(2)O) crystal. Investigation of the phosphate stretching modes, study of the LOTO splitting. J. Raman Spectrosc. 47 971–977. 
Added by: Richard Baschera (2016-09-12 08:28:44)   Last edited by: Richard Baschera (2017-02-02 14:33:08)
Type de référence: Article
DOI: 10.1002/jrs.4923
Numéro d'identification (ISBN etc.): 0377-0486
Clé BibTeX: Quillard2016
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Catégories: MIOPS, PMN
Mots-clés: bone cements, Brushite, cahpo4-center-dot-2h(2)o, calcium-phosphate, dicalcium phosphate, dihydrate, gypsum, in-vivo, invitro, Monoclinic crystal, polarized Raman
Créateurs: Bouler, Buisson, Deniard, Mevellec, Quillard
Collection: J. Raman Spectrosc.
Consultations : 1/682
Indice de consultation : 3%
Indice de popularité : 0.75%
Polarized Raman measurements were recorded on a monoclinic brushite (CaHPO4.2H(2)O) crystal in the 800-1200cm(-1) spectral range, corresponding to the PO stretching modes. This study is a continuation of the investigation of the phosphate stretching modes observed in polarized infrared reflectance spectra of brushite crystal. In such ionic non-centrosymmetric crystals, the splitting between the transverse and longitudinal components of the optic vibrations was observed in the polarized Raman spectra recorded at several scattering geometries. A symmetry modes of the brushite crystal were measured. Using a simple model based on the symmetry of the PO4 group, the Raman intensities of the stretching modes are calculated and compared with experimental bands. Copyright (c) 2016 John Wiley & Sons, Ltd.
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