Null-Reading Microbalance and its Use in the Study of the Infrared Spectra of Adsorbed Molecules

Seanor, D. A.; Amberg, C. H.

doi:10.1063/1.1718622

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Bol = ( 8 ~~~/ 3 H ~) ( M ~* ~) ~1

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1967

1984

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Cited by 25 publications

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“…Eqn. (8) enables us to calculate the ratio of the effective charges of the OH oscillator perturbed by the electrostatic field either in absence or in presence of adsorbed molecules. Let Ap2 and A,1 be the absorbances of the high-frequency OH band in presence or in absence of adsorbed molecules, respectively ; from (8) Accordingly, eqn.…”

Section: Bol = ( 8 ~~~/ 3 H ~) ( M ~* ~) ~mentioning

confidence: 99%

Perturbation of OH groups in decationated Y-zeolites by physically adsorbed gases

White¹,

Jelli²,

André³

et al. 1967

Trans. Faraday Soc.

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The shift and the change in intensity of the OH stretching bands of decationated near-faujasite (Y) zeolites have been studied with respect to the physical adsorption of N2, 0 2 , CH4, Ar and Kr.The high-frequency OH stretching was assigned to hydroxyls in the supercage and the low-frequency OH stretching to hydroxyls in the cubo-octahedron. A simple electrostatic model allows one to correlate the shift and the change in intensity of the high-frequency OH band to the dielectric constant of adsorbed species. The reaction field of the OH dipole in an ellipsoidal cavity surrounded by the adsorbed molecules seems to be responsible for the perturbation undergone by the OH oscillator when the dielectric constant around the cavity is modified.

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Section: Bol = ( 8 ~~~/ 3 H ~) ( M ~* ~) ~mentioning

confidence: 99%