O-17 AND Y-89 NMR OF C-Y2O3 AND B-Y2O3

Authors
FLORIAN P MASSIOT D HUMBERT G COUTURES JP
Citation
P. Florian et al., O-17 AND Y-89 NMR OF C-Y2O3 AND B-Y2O3, Comptes rendus de l'Academie des sciences. Serie II. Mecanique, physique, chimie, astronomie, 320(2), 1995, pp. 99-104
Citations number
5
Categorie Soggetti
Multidisciplinary Sciences
Journal title
Comptes rendus de l'Academie des sciences. Serie II. Mecanique, physique, chimie, astronomie → ACNP
ISSN journal
12518069
Volume
320
Issue
2
Year of publication
1995
Part
1
Pages
99 - 104
Database
ISI
SICI code
1251-8069(1995)320:2<99:OAYNOC>2.0.ZU;2-6
Abstract
The data obtained by solid state high resolution O-17 and Y-89 NMR on O-17 enriched C- and B-Y2O3 have been interpreted using their known cr ystallographic structures (coordinance, averaged distances, site popul ation). For O-17 three types of coordinances are observed: OY4 for C-Y 2O3 (one site, 359 ppm) and B-Y2O3 (three sites at 383, 377 and 346 pp m), OY5 and OY6 for the monoclinic phase (313 and 242 ppm). In the cas e of Y-89, the two octahedral OY6 sites in C-Y2O3 are unambiguously la belled (314 and 273 ppm).