VIBRATIONAL PROPERTIES OF CALCIUM-PHOSPHATE COMPOUNDS .1. RAMAN-SPECTRUM OF BETA-TRICALCIUM PHOSPHATE

Authors
DEAZA PN SANTOS C PAZO A DEAZA S CUSCO R ARTUS L
Citation
Pn. Deaza et al., VIBRATIONAL PROPERTIES OF CALCIUM-PHOSPHATE COMPOUNDS .1. RAMAN-SPECTRUM OF BETA-TRICALCIUM PHOSPHATE, Chemistry of materials, 9(4), 1997, pp. 912-915
Citations number
23
Categorie Soggetti
Chemistry Physical","Material Science
Journal title
Chemistry of materials → ACNP
ISSN journal
08974756
Volume
9
Issue
4
Year of publication
1997
Pages
912 - 915
Database
ISI
SICI code
0897-4756(1997)9:4<912:VPOCC.>2.0.ZU;2-P
Abstract
We present a study of the Raman spectrum of polycrystalline beta-Ca-3( PO4)(2) (beta-TCP) over its whole optical frequency range. Raman scatt ering bands associated with the normal vibrational modes of the PO43- tetrahedron were clearly identified, confirming the molecular characte r of the beta-TCP crystal as regards to its vibrational properties. Ex ternal lattice modes involving Ca2+ and PO43- sublattices were also ob served. Several characteristic features of the spectrum are discussed in relation to the crystallographic structure of beta-TCP.