[en] Processes of quenching of ³P₂ metastable state in collisions of inert gas atoms are considered. The terms of Ar(4s), Kr(5s), Xe(6s)+He, Ne quasimolecules are calculated. The temperature dependences of averaged in the Maxwell distribution cross sections of inelastic transitions ³P₂->³P₁ in collisions of Ar(³P₂), Kr(³P₂), Xe(³P₂)+He, Ne are determined

[en] Dynamics of CsBr molecule dissociation in Xe atom collisions within 5-11 eV energy range is studied. Two most probable mechanisms realized in collision are considered. In case of the first mechanism Xe atom attacts along molecule centre and transmits energy to both atoms that is accompained by molecule rapid dissociation during Xe atom flying-away time. The second one is realized at Xe atom attack to Br atom in noncollinear configuration and molecule dissociation occurs after formation of slightly-bound state of Cs⁺-Br^- ion pair which lifetime is essentially higher than that of Xe atom scattering

[en] In absorption spectra of sublimated layers of Lu-diphthalocyanine (LuPc₂) of different crystal structure in the range of 1000-5000 cm^-1 wide bands of intermolecular charge transfer are detected. It is assumed that the appearance of the bands is related to the deficit of electron density on Pc-ligands of LuPc₂ molecule. Cationic salts formed as a result of interaction between the layers and iodine vapours also have bands of interion charge transfer in the range of 500-3000 cm^-1. In case of charge transfer band imposition on narrow vibrational bands in the spectrum of monocation an antiresonance can be observed, which results in the appearance of narrow collapses on the contour of a wide band of charge transfer

[en] Method for calculating thermodynamic functions in two-phase liquid-vapor region according to analytical dependences is given. It enables to reduce the calculation time, as compared to iterative algorithms. It is assumed that required parameters, characterizing substance state at the boundary of two-phase region are known. Polynomial splines-cubic and square ones-are used to present the boundary of two phase region. Operationability of the method is demonstrated, taking the calculation of copper state in two-phase liquid-vapour region as an example. 5 refs.; 2 figs

[en] The paper presents the results of investigation into kinetic dependences of the initial stage (up to 1 min) of high-temperature siliconization of molybdenum in a medium of rarefied silane at 1450-1850 deg C and p_SiH4 0.8-2.0 torr. The formation of two silicide phase Mo₅Si₃ and MoSi₂ - is established, and depending on phase temperature and pressure these phases are formed simultaneously or stage-by-stage. Therefore, molybdenum siliconization in silane can proved both in kinetic and diffusion conditions. The model of reaction diffusion with the boundary condition of the second series is realized in the last case. P-T regions of the realization of different mechanisms and schemes of molybdenum-silane interactions are determined. 4 refs., 4 figs

[en] A possibility of mixing oscillation modes υ₂ and (υ₁-υ₄) of ammonium cation is ascertained. Two types of such mixing in a crystal are detected and their parameters are determined. It is shown that the spectral shapes of oscillations interacting according to Fermi are described by lorentzians

[en] Approximate analytical evaluations of spacial-energy distribution of the products of fast nonrelativistic bremmstrahlung in media with random charge number are performed. The approach is based on the Biot diffusion theory, theory of rectilinear propagation of electrons and analysis of the degradation cascade of primary, secondary, etc electrons.9 refs

[en] Energy analysis of radiation-chemical reactions of V₂-, F-, H-, V_k-centres, Frenkel defects in KCl crystal is carried out. Recombination of F-centres with mobile H- and V_k-centres, products of thermal dissociation of hole V₂-defects is considered to be the most effective mechanism of their degrading. Interactions between V₂-defects and vacancies can not be regarded as the basic ones in the problem of annealing of high-temperature V₂-defects

[en] Complexing of adamantanone with Eu(fod)₃ chelate in basic state was studied by the method of chemiluminescence and in excited state-by the method of kinetic luminescent spectroscopy. Stability constants and thermodynamic parameters of complexing were determined. The obtained results testify to the influence of f-shell of Eu(3) chelate complexes on formation of coordination bond with adamantanone under excitation of Eu(fod)₃ f-f-transitions. 8 refs., 2 figs., 2 tabs

[en] The processes of localized charge generation in BeO are investigated by the EPR methods under the impact of an electrical discharge (EC) in oxygen. It is formed that, as a result of the interaction of oxygen atoms and (O^x, O^- and O₂) ions with BeO surface, the rate of the formation of localized states of nonequilibral charge carriers is approximately two times as low as that of the discharge in air. It is aicertained that the kinetic curves of electron (F⁺) and hole (V^-) centers build up pass through the maximum and stabilize after wards.26 refs., 3 figs