Advertisement

Pramana

, Volume 21, Issue 4, pp 283–291 | Cite as

Vibrational spectra of α-molybdic acid-MoO3.H2O

  • S Sheik Saleem
  • G Aruldhas
Article

Abstract

Their and Raman spectra of molybdenum trioxide—monohydrate are studied assuming an effective tetrahedral Mo-O coordination and isolated water molecules, although the crystallographic coordination is six-fold with two long Mo-O distances. Based onCt symmetry, the group theoretical analysis has been carried out and a vibrational assignment is proposed. The nature of hydrogen bonding and the librational modes of water molecules are discussed. The factor group splitting forv3, the asymmetric stretching mode of MoO4 = ion, is large indicating strong interchain coupling.

Keywords

Raman spectra molybdic acid librational modes infrared spectra 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Blasse G 1975J. Inorg. Nucl. Chem. 37 97CrossRefGoogle Scholar
  2. Davydov A S 1969Theory of molecular excitons (New York: McGraw Hill)Google Scholar
  3. Guntur J R 1972J. Solid State Chem. 5 354CrossRefADSGoogle Scholar
  4. Kihlborg L 1963Arkiv. Kemi 21 357Google Scholar
  5. Krauss H L and Huber W 1961Chem. Ber. 94 2868Google Scholar
  6. Lindqvist I 1950Acta Chem. Scand. 4 650CrossRefGoogle Scholar
  7. Lindqvist I 1956Acta Chem. Scand. 10 1362Google Scholar
  8. Lutz H D, Pobischka W, Christan H and Becker R H 1979J. Raman Spectrosc. 7 130CrossRefADSGoogle Scholar
  9. Maricic S and Smith J A S 1958 J. Chem. Soc. 886Google Scholar
  10. Miller P J 1971Spectrochim. Acta A27 957Google Scholar
  11. Novak A 1979Mathematical and physical sciences NATO advanced study institute series C (ed.). T M Theophanides (Holland, D Reidel Publishing Company), p. 279Google Scholar
  12. Oswald H R, Guntur J R and Dubler E 1975J. Solid State Chem. 13 330CrossRefADSGoogle Scholar
  13. Pezerat H 1979J. Chim. Phys. & Phys. Chim. Biol. 73 104Google Scholar
  14. Scherer J R 1978Advances in infrared and Raman spectroscopy (eds.) R J H Clark and R Hester. (London: Heydon & Son) Vol.5, p. 149Google Scholar
  15. Singh B, Gupta S P and Khanna B N 1980Pramana 14 509CrossRefADSGoogle Scholar
  16. Sreenivasan S 1979Analysis of the infrared internal vibrations of certain crystals Ph.D., University of KeralaGoogle Scholar
  17. Wienstock N, Schulze, H and Müller A 1973J. Chem. Phys. 59 5063CrossRefADSGoogle Scholar

Copyright information

© Indian Academy of Sciences 1983

Authors and Affiliations

  • S Sheik Saleem
    • 1
  • G Aruldhas
    • 1
  1. 1.Department of PhysicsUniversity of KeralaKariavattomIndia

Personalised recommendations