Raman, IR, and 27Al-MAS-NMR spectroscopic studies of sodium (hydroxy)aluminates

H. R. Watling, P. Sipos, L. Byrne, G. T. Hefter, P. M. May

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

A series of solid sodium (hydroxy)aluminates has been prepared from highly caustic aqueous sodium aluminate solutions. The coordination geometry of the aluminum in these compounds was established by 27Al magic angle spinning nuclear magnetic resonance (27Al-MAS-NMR) spectroscopy and was used to identify the Raman and IR vibration frequencies characteristic of tetrahedral (Raman: 440 cm-1; IR: 823 cm-1 and 540 cm-1) and octahedral (Raman: 490-500 cm-1; IR: 728 cm-1) aluminum sites. The vibrational spectra of these solids differ markedly from those observed for concentrated aqueous solutions, and it appears that solid-state vibrational spectra cannot be used to predict the structure of aluminate species existing in solutions.

Original languageEnglish
Pages (from-to)415-422
Number of pages8
JournalApplied Spectroscopy
Volume53
Issue number4
Publication statusPublished - Apr 1999

Fingerprint

aluminates
Magic angle spinning
vibrational spectra
metal spinning
Sodium
Nuclear magnetic resonance
sodium
Vibrational spectra
Aluminum
aluminum
nuclear magnetic resonance
magnetic resonance spectroscopy
alkalies
Caustics
aqueous solutions
solid state
vibration
Nuclear magnetic resonance spectroscopy
geometry
Geometry

ASJC Scopus subject areas

  • Spectroscopy
  • Instrumentation

Cite this

Watling, H. R., Sipos, P., Byrne, L., Hefter, G. T., & May, P. M. (1999). Raman, IR, and 27Al-MAS-NMR spectroscopic studies of sodium (hydroxy)aluminates. Applied Spectroscopy, 53(4), 415-422.

Raman, IR, and 27Al-MAS-NMR spectroscopic studies of sodium (hydroxy)aluminates. / Watling, H. R.; Sipos, P.; Byrne, L.; Hefter, G. T.; May, P. M.

In: Applied Spectroscopy, Vol. 53, No. 4, 04.1999, p. 415-422.

Research output: Contribution to journalArticle

Watling, HR, Sipos, P, Byrne, L, Hefter, GT & May, PM 1999, 'Raman, IR, and 27Al-MAS-NMR spectroscopic studies of sodium (hydroxy)aluminates', Applied Spectroscopy, vol. 53, no. 4, pp. 415-422.
Watling, H. R. ; Sipos, P. ; Byrne, L. ; Hefter, G. T. ; May, P. M. / Raman, IR, and 27Al-MAS-NMR spectroscopic studies of sodium (hydroxy)aluminates. In: Applied Spectroscopy. 1999 ; Vol. 53, No. 4. pp. 415-422.
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