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The Infrared Absorption of the FCl − Heteronuclear Molecule Ion in KCl
Author(s) -
Susman S.
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.19700370207
Subject(s) - heteronuclear molecule , ion , infrared , absorption (acoustics) , molecule , analytical chemistry (journal) , polarization (electrochemistry) , doping , atomic physics , infrared spectroscopy , absorption edge , absorption spectroscopy , materials science , chemistry , molecular physics , optics , optoelectronics , physics , band gap , organic chemistry , chromatography , composite material
Abstract Single crystals of KCl doped with KF and exposed to high dosages of Co 60 γ‐radiation develop a simple doublet absorption on the high frequency edge of the KCl reststrahl. This 403.7—399.8 cm −1 doublet is assigned to the fundamental internal vibration of the FCl − heteronuclear molecule ion. The doublet separation, intensity ratio, thermal decay, optical bleaching and polarization properties support this assignment. The internal stretching frequency of FCl − in KCl is not markedly different than would be approximated from gas phase data for the neutral species.