Premium
Local Vibrations of Divalent and Univalent Complex Ions in KCl Crystals
Author(s) -
Maksimova T. I.
Publication year - 1969
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.19690330207
Subject(s) - divalent , ion , degenerate energy levels , impurity , ionic bonding , chemistry , crystallography , crystal (programming language) , infrared spectroscopy , spectral line , inorganic chemistry , physics , organic chemistry , quantum mechanics , astronomy , computer science , programming language
A study has been made of the infrared absorption spectra of KCl crystals containing as impurities complex ions NO 3 − , CO 3 2− , and SO 4 2− , as well as divalent metals Ca 2+ , Sr 2+ , Cu 2+ . A dependence was found of the complex ion local vibration spectra on the ionic charge. The degenerate vibrations of the divalent ions CO 3 2−and SO 4 2−in a crystal were shown to split whereas in the case of the univalent ions NO 3 in the crystal the corresponding vibrations remained degenerate. The splitting of degenerate vibrations in the case of divalent ions is attributed to a lowering of the impurity centre symmetry resulting from a formation of complexes with anion vacancies or divalent metals.