Oxygen hydrogen stretching

Kunimatsu, K. and Bewick, A. (1986) Electrochemically modulated infrared spectroscopy of adsorbed water in the inner part of the double layer part 1. Oxygen-hydrogen stretching spectra of water on gold in 1M perchloric acid. fnd. J. Technol., 24, 407-412. 

It has been found that the near-infrared spectra of even polar materials show little variation with the density and the temperature (Luck, 1965 Luck and Ditter, 1968 Buback, 1991). This is in contrast to the IR spectra, e.g., those of oxygen-hydrogen stretching fundamentals (Franck and Roth, 1967) and of pure hydrogen chloride (Buback and Franck, 1971), in which changes of B by several hundred per cent are observed between gaseous and liquid states (see Section 6.7.3). The additional advantages of NIR for quantitative... 

A. Pozefsky and N. D. Coggeshall, Infrared Absorption Studies of Carbon-Hydrogen Stretching Frequencies—In Sulfurized and Oxygenated Materials, AnaU Chem. 23, 1611, 1951. 

The differences between the enol type acetylacetonate complexes, i.e. oxygen bound to metal atom, and the keto type, i.e. carbon bound, are as follows (1) the y-carbon hydrogen stretching frequency is lower by about 150-100cm in the keto form (2) bands due to the asymmetric and symmetric C=0 stretching vibrations appear at I700-I650cm ... 

Obviously, this shift implies the self-association of DMSO. Further frequency shifts to even lower wave numbers (1050-1000 cm " ) are observed in both aprotic polar and protic solvents. In aprotic solvents such as acetonitrile and nitromethane, the association probably takes place between the S—O bond of DMSO and the —C=N or the —NOz group in the molecules by dipole-dipole interaction as shown in Scheme 331,32. Moreover, the stretching frequency for the S—O bond shifts to 1051 cm 1 in CHC13 and to 1010-1000 cm -1 in the presence of phenol in benzene or in aqueous solution33. These large frequency shifts are explained by the formation of hydrogen bonds between the oxygen atom in the S—O bond and the proton in the solvents. Thus, it has been... 

Figure 3. Hydrogen and oxygen velocity autocorrelation function from two-body MCY with vibrations allowed (MCYL), and computed infrared spectrum for intramolecular bending modes and bond stretching.

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