Infrared spectrum of water

Lastly, more complete infrared spectra of water and CO2 adsorption were obtained and were able to distinguish different types of surface carbonates. 

FIGURE 4.5 Illustration of polynomial smoothing on near-infrared spectra of water-methanol mixtures, (a) Original spectra, (b) Smoothed spectra. 

S. Chin and T. A. Ford, J. Mol. Struct. (Theochem), 133 193 (1985). Ab Initio Molecular Orbital Calculations of the Infrared Spectra of Water Molecules In Some Intermolecular Complexes. 

Fig. 42. Infrared spectra of water vapor adsorbed on H-ZSM-5 at low pressures (10 -1 mbar) the spectra obtained at 10" and 10 mbar were expanded by the factors 5 and 10, respectively (adopted from [127])...

Table 8.2 (Alpert et al., 1970) gives a summary of the important group frequencies of amines. These have also been discussed in Rao (1963) and Bellamy (1958). Table 8.3 (Alpert et al, 1970) presents vibrations associated with the CN structure for the series methyl, dimethyl, and trimethyl amines. The bands for the corresponding hydrochlorides are also given. The infrared spectra of water solutions of the hydrochlorides of several biologically important amines have been recorded in the range 1550-909 cm (Kirschenbaum and Parker, 1961). Bentley et al. (1968) have discussed alkyl and aromatic amine spectra recorded in the range 700 300cm V...

Fig. 12 Absolute infrared spectra of water at the Pt electrode in 0.1 M H2SO4 calculated from Fig. 11 by numerically subtracting the downward-going bands. [Reprinted from ref 44 by permission of the American Chemical Society copyright 2008.]...

Yamatera, H., Fitzpatrick, B., and Gordon, G., Near-infrared spectra of water and aqueous solutions,... 

Fig. 13.1 Infrared spectra of water-soluble window materials.

Fig. 13.2 Infrared spectra of water-insoluble window materials.

Szymanski, H. A., and R. Povinelli, 1961. Infrared spectra of water soluble carbonates. Nature 191 64. 

D. N. Stamires, and G. R. Lynch, 1960. Infrared spectra of water sorbed on synthetic zeolites. 

Fig. 7.12 Experimental and calculated infrared spectra for liquid water. The black dots are the experimental values. The thick curve is the classical profile produced by the molecular dynamics simulation. The thin curve is obtained by applying quantum corrections. (Figure redrawn from Guilbt B 1991. A Molecular Dynamics Study of the Infrared Spectrum of Water. Journal of Chemical Physics 95 1543-1551.)...

The anomalous behavior of quinazoline was first discovered by Albert et who made the surprising observation that 4-methyl-quinazoline 2.5) was a weaker base than quinazoline (pA 3.5). Mason then observed that the ultraviolet spectrum of the quinazoline cation was abnormal but that the spectrum of 4-methylquin-azoline was normal (see Fig. 2). These anomalies led to the suggestion that water adds covalently to the cation of quinazoline to give 12 (R = H). The occurrence and position of hydration were confirmed by a detailed study of the ultraviolet and infrared spectra of the anhydrous and hydrated hydrochlorides and by mild oxidation of the cation to 4(3 )-quinazolinone. Using the rapid-reaction technique (the continuous-flow method), the spectrum of the unstable... 

Following the same procedures described in the above-mentioned study, additional extractive data were obtained for the epoxy phenolic enamel that was irradiated at 4.7-7.1 Mrad at 25 and — 30 °C in the presence of distilled water, 3% acetic acid, and n-heptane. The changes in the amount of extractives resulting from the irradiation treatment are shown in Table IX. In the case of the water and acetic acid extractives, there was no change in either the chloroform-soluble fractions or the chloroform-insoluble fractions. In the case of the n-heptane extractives, the amount of extractives decreased when the irradiation temperature was reduced from +25 to — 30°C. Infrared spectra of the chloroform-soluble residues from the water and acetic acid extractives of the unirradiated and irradiated enamel were identical to the chloroform-soluble residues from the solvent blanks. In other words, the epoxy phenolic... 

Infrared spectra of silicas, a) Aerosil dried at 350 C, b) Aerosil as received, c) Aerosil slurried in water and dried at 100 C, d) Silicalite as received. 

The infrared photoacoustic spectra presented here complement and extend previous results from transmission infrared studies. As an extension of previous studies of silica the photoacoustic results presented here have identified features in the infrared spectra that coincide with bulk phonon modes between 1000 and 1200 cm and below 500 cm . The photoacoustic spectra of water adsorbed on aerosil... 

The availability of the purified transporter in large quantity has enabled investigation of its secondary structure by biophysical techniques. Comparison of the circular dichroism (CD) spectrum of the transporter in lipid vesicles with the CD spectra of water-soluble proteins of known structure indicated the presence of approximately 82% a-helix, 10% ) -turns and 8% other random coil structure [97]. No / -sheet structure was detected either in this study or in a study of the protein by the same group using polarized Fourier transform infrared (FTIR) spectroscopy [98]. In our laboratory FTIR spectroscopy of the transporter has similarly revealed that... 

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. 

S.R. Delwiche, K.H. Norris and R.E. Pitt, Temperature sensitivity of near-infrared scattering transmittance spectra of water-adsorbed starch and cellulose, App/. Spectrosc., 46, 782-789 (1992). 

The salt K3[Cr(C204)] 3H20 is soluble in water. The crystals are dichroic, being green-blue by transmitted light and magenta by reflection. The infrared spectra of this and other tris(oxalato) complexes have been recorded and analyzed.17... 

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