Infrared spectrum and structural role of titanium in synthetic Ti-garnets

Tarte, Pierre; Cahay, René; Garcia, A.

doi:10.1007/BF00308359

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Infrared spectrum and structural role of titanium in synthetic Ti-garnets

Tarte, Pierre; Cahay, René; Garcia, A.

1979 • In Physics and Chemistry of Minerals, 4 (1), p. 55 - 63

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https://hdl.handle.net/2268/307226

DOI
10.1007/BF00308359

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Keywords :

Materials Science (all); Geochemistry and Petrology; General Materials Science

Abstract :

[en] Ti-spessartite, Ti-andradite and its indium homolog, Ca3In2(Si, Ti)3O12, have been synthesized and investigated by infrared (ir) spectroscopy. The use of isotopic species (⁴⁶Ti-⁵⁰Ti) gives the unequivocal proof that some of the additional bands observed in the 800-600 cm^-1 region are due to TiO4 tetrahedra. For Si-Ti replacements up to 10 mol%, the localization of Ti on the available tetrahedral sites depends on the nature of the cations. For the In garnet all (or nearly all) Ti is located on tetrahedral sites; in Ti-andradite Ti is distributed over tetrahedral and octahedral sites, tetrahedral sites being thus occupied, in part by Ti (ir band near 700 cm^-1) and in part by Fe (ir band near 650 cm^-1); and Ti-spessartite the presence of Ti on tetrahedral sites is doubtful, these sites being essentially occupied by Al. © 1979 Springer-Verlag.

Disciplines :

Chemistry

Author, co-author :

Tarte, Pierre

Cahay, René ; Université de Liège - ULiège > Département de chimie (sciences) > Didactique des sciences chimiques

Garcia, A.; Institute of Chemistry, University of Liège, Liege 1, B-4000, Belgium

Language :

English

Title :

Infrared spectrum and structural role of titanium in synthetic Ti-garnets

Alternative titles :

[fr] Spectre infrarouge et rôle structurel du titane dans les Ti-garnets synthétiques

Publication date :

1979

Journal title :

Physics and Chemistry of Minerals

ISSN :

0342-1791

eISSN :

1432-2021

Publisher :

Springer-Verlag

Volume :

Issue :

Pages :

55 - 63

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

http://link.springer.com/content/pdf/10.1007/BF00308359.pdf

Available on ORBi :

since 29 September 2023

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Bibliography

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