Stress‐ and field‐induced dichroism of the vibrational absorption of OH −  Molecules in alkali halides | Zendy

Härtel H. | Zendy

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Stress‐ and field‐induced dichroism of the vibrational absorption of OH − Molecules in alkali halides

Author(s) -

Härtel H.

Publication year - 1970

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.19700420138

Subject(s) - halide , dichroism , alkali metal , chemistry , dipole , absorption (acoustics) , molecule , circular dichroism , absorption band , absorption spectroscopy , field (mathematics) , analytical chemistry (journal) , crystallography , inorganic chemistry , optics , physics , organic chemistry , mathematics , pure mathematics

This paper presents experimental data about the absorption band of the stretching vibration of OH − in RbCl, KBr, and KCl, and about the field‐ and stress‐induced dichroism of this band at low temperatures. For small concentrations ( N OH < 10 −4 ) the spectrum was found to consist of a single band with a halfwidth ≦ 0.1 cm −1 (LHeT). The experiments about the dichroism clearly indicate that for RbCl and KBr the molecule axis of the OH − is pointing along 〈100〉. For OH − in KCl the results are more complicated and cannot be explained completely. However, the general model of a 〈100〉 dipole seems to hold also for this system.

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