Infrared and Raman group frequencies

D. Combined treatment of both infrared and Raman group frequencies Lin-Vien, Colthup, Fateley, and Grasselli, Infrared and Raman Characteristic Group Frequencies, Academic, New York, 1991. 

SURVEY OF INFRARED AND RAMAN GROUP FREQUENCIES WAVENUMBER CM" ... 

There are infrared group frequencies and Raman group frequencies. They are often complementary—one intense, the other weak. 

G. Socrates, Infrared and Raman characteristic group frequencies, John Wiley Sons LTD, Baffins Lane, Chichester, West Susses P019 lUD, England, 2001, p. 1-347. 

For crystals with molecule-like constituents, like the BO, " and BO4 " groups in some borates, semi-quantitative models of the molecular component as a gas-phase entity have been proposed (Oi et al. 1989). This is conceptually similar to the approximation made for species in solution, although in practice most studies of crystals consider additional frequencies that reflect inter-molecular vibrations. The spectroscopic data on these vibrations (which typically have lower frequencies than the intra-molecular vibrations) are often available, at least approximately, from infrared and Raman spectroscopy and elastic properties. This type of hybrid molecule-in-crystal model has been applied to many minerals in theoretical studies of carbon and oxygen isotope fractionation, the most noteworthy being studies of calcite (Bottinga 1968 Chacko et al. 1991) and sihcates (Kieffer 1982). Because specfroscopic dafa are always incomplete (especially for subsfances substifufed wifh rare isolopes), some amounl of vibralional modeling is necessary. 

D. Lin-Vien, N.B. Colthmp, W.G. Fateley, J.G. GrasseUi, Infrared and Raman Characteristic Group Frequencies of Organic Molecules, Academic Press, San Diego, 1991. 

Socrates, G., Infrared and Raman Characteristic Group Frequencies, Tables and Charts, 3rd Ed., J. Wiley Sons, Chichester U.K., 2001,1-249. 

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