Manifestation of hydration of Na and Cl ions in the IR spectra of NaCl aqueous solutions in the range of 2750-4000 cm.

This work is aimed at the study at studying the influence of the interaction of solvate shells on the profiles of the IR spectra of sodium chloride solutions in the 2750-4000 cm range. The IR spectra of distilled water and sodium chloride solutions were obtained with the limit (0.356 g per 100 g of water) and 50 % of the limit (0.

Data on FTIR spectra of the clays KGa-1b and STx-1b and their mixtures at different moistures.

Kaolinite and smectite are among the main soil-forming minerals, and therefore their properties are constantly being refined. This article provides data on the IR spectra of the clays KGa-1b and STx-1b containing 96% and 67% of those minerals [1], and their mixtures in equal mass proportions at different moisture contents. These data were used in the article "Study of hydration of kaolinite and montmorillonite mixture by IR spectroscopy" [2], to study the dynamics of the formation of water layers on the surface of clay particles.

Monte Carlo study of the relative role of energy absorption mechanisms in solid disordered neon under irradiation with photons in the energy range of 4 to 800 Ry.

Mechanisms of energy absorption in solid disordered neon under 4 to 800 Ry photon irradiation are studied by Monte Carlo simulation with accounting for the cascade decays of vacancies produced by primary and secondary ionization processes. The dominating channel for the transfer of energy to the sample giving about 55% of total absorbed energy is through ionization and excitation of atoms of the medium by secondary electrons produced by primary photoionization and secondary inelastic processes, and by vacancy decay cascades. The portion of energy absorbed in the acts of primary photoionization is significant only at incident photon energies fewer than 10 Ry, it is about 5% at incident photon energy near the Ne1s ionization threshold, and decreases rapidly at higher photon energies.

Multiple ionization upon K-shell photoabsorption of the CO and N2 molecules.

The spectra of multiple ionization of CO and N2 in the gas phase in the region of the K-shell ionization thresholds of C and N are studied theoretically. The processes of additional excitation/ionization from 1pi and 5sigma-shells are included. The effects of many-electron correlations on the extention of multiplet structure for some configurations of multiple excitations is studied.

Orientation effects in elastic scattering of polarized X-rays by linear molecules.

Strong orientation effect is discovered theoretically upon the change of the scheme of suggested experiment on anomalous elastic x-ray scattering of linearly polarized x-ray radiation by linear diatomics near the ionization thresholds of inner molecular orbitals. Studied are the effects on the shape of theoretical scattering spectra of additional excitations/ionizations of outer-shell electrons. Within the one-centre approximation for the molecular orbitals wavefunctions the analytical structure of the linear molecule's formfactor is obtained.