Structure study of bromocadmate and iodocadmate glasses by 113Cd MAS NMR spectroscopy

Shinichi Sakida, Yoji Kawamoto

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

113Cd magic-angle spinning (MAS) NMR spectra have been measured for glasses of 50.0CdBr2·xKBr·xCsBr·(50.0-2x)BaBr 2 (x=17.5 and 20.0), 40CdI2·40KI·20CsI, 50CdI2·yKI·(50-y)CsI (y=10,20, and 30), 60CdI2·10KI·30CsI, and (60-z)CdI2·40CsI·zBaI2 (z=0,5and10) in mol% to reveal the anion co-ordination environments around Cd2+ in the glasses. The bromocadmate and iodocadmate glasses gave isotropic chemical shift values of -27 ppm and 78∼121 ppm, respectively, indicating that the former and the latter glasses consist of CdBr6 octahedra and CdI4 tetrahedra, respectively. Moreover, the octahedral anion co-ordination around Cd2+ in the bromocadmate glasses has higher symmetry than that in the chlorocadmate glasses, and the iodine co-ordination environment around Cd2+ in the iodocadmate glasses is dependent on the CdI2 content, but is independent of the kind of glass-modifying cation.

Original languageEnglish
Pages (from-to)15-19
Number of pages5
JournalJournal of Non-Crystalline Solids
Volume290
Issue number1
DOIs
Publication statusPublished - Sep 2001
Externally publishedYes

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Magic angle spinning
metal spinning
Nuclear magnetic resonance spectroscopy
Glass
nuclear magnetic resonance
glass
spectroscopy
Anions
Negative ions
anions
Chemical shift
Iodine
tetrahedrons
iodine
chemical equilibrium
Cations
Positive ions
Nuclear magnetic resonance
cations
symmetry

ASJC Scopus subject areas

  • Ceramics and Composites
  • Electronic, Optical and Magnetic Materials

Cite this

Structure study of bromocadmate and iodocadmate glasses by 113Cd MAS NMR spectroscopy. / Sakida, Shinichi; Kawamoto, Yoji.

In: Journal of Non-Crystalline Solids, Vol. 290, No. 1, 09.2001, p. 15-19.

Research output: Contribution to journalArticle

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