Normal and inverse garnets: Ca3Fe2Ge3O12, Ca3Y2Ge3O12 and Mg3Y2Ge3O12

Authors
Levy, D Barbier, J
Citation
D. Levy et J. Barbier, Normal and inverse garnets: Ca3Fe2Ge3O12, Ca3Y2Ge3O12 and Mg3Y2Ge3O12, ACT CRYST C, 55, 1999, pp. 1611-1614
Citations number
12
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS
ISSN journal
01082701 → ACNP
Volume
55
Year of publication
1999
Part
10
Pages
1611 - 1614
Database
ISI
SICI code
0108-2701(19991015)55:<1611:NAIGCC>2.0.ZU;2-0
Abstract
The structures of three garnets, namely, tricalcium diiron(III) trigermaniu m dodecaoxide, tricalcium diyttrium trigermanium dodecaoxide and trimagnesi um diyttrium trigermanium dodecaoxide, have been determined by X-ray diffra ction using flux-grown single crystals. The cation distributions correspond to a normal garnet structure for (Ca3Fe2Ge3O12)-Fe-[8]-Ge-[6]-O-[4] and Ca -3([8])-(Y2Ge3O12)-Ge-[6]-O-[4], and to an inverse garnet structure for (Mg Y2)(Mg2Ge3O12)-Mg-[8]-Ge-[6]-O-[4].