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Theoretical and experimental resonance Raman intensities for the manganate ion
Author(s) -
Chao R. S.,
Khanna R. K.,
Lippincott E. R.
Publication year - 1975
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250030203
Subject(s) - overtone , raman spectroscopy , manganate , resonance (particle physics) , chemistry , ion , intensity (physics) , absorption (acoustics) , nuclear magnetic resonance , molecular physics , spectral line , atomic physics , physics , optics , power (physics) , battery (electricity) , quantum mechanics , astronomy , organic chemistry
Resonance Raman spectra are reported for potassium manganate powder employing a number of exciting frequencies within the electronic absorption region of the material. In analyzing the observed variations in the relative intensities for resonance effects we have considered δ M /δ q ( M = transition moment and q = normal coordinate) as the dominant term in the theoretical derivation of the expression for Raman intensity. This approach leads to excellent agreement between the experimental intensity data on both the fundamental as well as the first overtone of the symmetric stretching mode of the MnO 4 2−ion and the derived theoretical expressions.