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Imyanitov N.S.,All Russian Research Institute of Petrochemical Processes
Russian Journal of Inorganic Chemistry | Year: 2011

To illustrate the efficiency of a previously proposed new formulation of the Periodic Law, the proton affinities and gas-phase basicities of 20 elements in the p- and d-blocks were predicted. These properties were considered as a function of the total number of p- or d-electrons in an atom, rather than depending on the nuclear charge or the number of outer-shell electrons. The analysis was performed block by block separately. For p elements, the kainosymmetry and additional periodicity were taken into account. Equations were deduced and then used for predicting the proton affinities and gas-phase basicities of p 4-p 6 elements (Se, Te, Po, At, and Rn) and d 2-d 10 elements (Zr, Nb, Mo, Tc, Ag, Cd, Hf, Ta, W, Re, Os, Ir, Pt, Au, and Hg). © 2011 Pleiades Publishing, Ltd. Source


Imyanitov N.S.,All Russian Research Institute of Petrochemical Processes
Russian Journal of Inorganic Chemistry | Year: 2011

Specific features of the Periodic Law as compared with the other laws of exact sciences are presented. Its classic and new formulations are reported. The improvements in the description of the characteristics determining the properties underlying the periodicity are occurred in the sequence: the atomic weight-the nuclear charge-the total number of s-electrons in the atom of s-block, p-electrons in p-block, d-electrons in d-block or f-electrons in f-block. Equations adequately describing the properties of the elements (atoms) and their compounds are considered. The published tables and the other graphic representations of the Periodic Law consist in several hundred versions, a concise review of their main types is presented. The variations in the composition of the blocks and periods in going to cations and at hyperhigh pressures is discussed. The exclusions from the Periodic Law are mentioned. The analogs of the Periodic Law in various sciences are formulated since the periodicity is the general rule for the transitions from simple to complex in the evolution. © Pleiades Publishing, Ltd., 2011. Source


Dykman A.S.,All Russian Research Institute of Petrochemical Processes | Imyanitov N.S.,All Russian Research Institute of Petrochemical Processes | Polyakov S.A.,All Russian Research Institute of Petrochemical Processes | Vershinin K.A.,Eurochim SPb Trading
Russian Journal of Applied Chemistry | Year: 2010

Effect of conditions (partial pressure of isoprene, temperature, catalyst concentration, medium) on the rate and selectivity of reactions occurring in interaction of isoprene with water in the presence of orthophosphoric acid as a catalyst was studied at elevated temperatures and pressures in the liquid phase. The reaction orders with respect to isoprene were determined for reactions in which 3-methylbutanone-2,2-methylbutanal, and 2,2-dimethylpropanal are formed. The applicability of various acidity characteristics for describing the rates of the reactions under study are considered. © 2010 Pleiades Publishing, Ltd. Source

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