Abstract
ALTHOUGH the comments of Dr. Brown on my communication are very encouraging for further theoretical investigations, it should be pointed out that the equation used by Brown to calculate the doubly degenerate ν̄2(E) vibration of the ion was derived for a tetrahedral ion or molecule which has a spherical and rigid electron distribution. This assumption is certainly not valid in the case of the ion in the LiBH4 lattice. In this lattice the tetrahedral ion is considerably deformed, having the site symmetry C s. In addition, it must be pointed out that the crystalline field in which any ion is embedded has a profound influence on the frequencies of vibrational modes (see, for example, refs. 1 and 2). The frequency of ν2, calculated according to the formula derived by Brown, is that of the free tetrahedral ion and can only be compared, for example, with the Raman frequencies of in liquid ammonia.
Similar content being viewed by others
Article PDF
References
Strasheim, A., and Buijs, K., J. Chem. Phys., 34, 691 (1961).
Ketelaar, J. A. A., Schutte, C. J. H., and Schram, B. L., Spectrochim. Acta, 13, 336 (1959).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
SCHUTTE, C. The Borohydride Ion in the Lithium Borohydride Lattice. Nature 190, 805 (1961). https://doi.org/10.1038/190805a0
Issue Date:
DOI: https://doi.org/10.1038/190805a0
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.