An analysis of migration paths of Li+ cations in ternary oxygen-containing compounds Li p X q O r

A new method was developed for studying voids and channels in crystal structures based on the Voronoi-Dirichlet partition of crystal space, and 822 structurally characterized ternary compounds Li ^p X ^q O ^r were analyzed for the first time. For these compounds, the dimensionality was determined and the migration patterns of channel systems capable of providing lithium-ion transport were constructed. The calculated coordinates of lithium atoms in the centers of the voids are consistent (within 0.4 ?) with the known structural data. Among these compounds, 113 compounds have infinite channel systems, 60 compounds (18 structural types, STs) have been described earlier in the literature as solid electrolytes, and 53 compounds (23 STs) can be considered as potential one-, two-, or three-dimensional ionic conductors (13, 3, and 7 STs, respectively). Original Russian Text ? N.A. Anurova, V.A. Blatov, G.D. Ilyushin, O.A. Blatova, A.K. Ivanov-Shitz, L.N. Dem’yanets, 2008, published in Kristallografiya, 2008, Vol. 53, No. 6, pp. 987–993.     

Synthesis of Cobalt(III) Ammine Complexes as Explosives for Safe Priming Charges

Physicochemical and explosive properties of Co(III) pentammine complexes containing in the inner coordination sphere monodentate polynitrogen heterocyclic ligands, 1-methyl-5-aminotetrazole and 1,5-diaminotetrazole, were studied, and it was shown that these compounds can be used in priming charges.     

Distribution of iron atoms in Fe-Mn alloys with the structure of β-Mn

X-ray analysis and Mössbauer spectroscopy were used to study the distribution of iron atoms in Fe-Mn alloys isostructural to -Mn and to determine the iron concentrations in the positions 8(c) and 12(d) of the -Mn structure in alloys of different compositions.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 3, pp. 86–89, March, 1981.     

Electrochemical bromination of dmso in alkaline media: The synthesis of 1,1,1-tribromo- and hexabromodimethylsulfones

Conclusions The electrochemical bromination of DMSO in alkaline media leads to the formation of (CBr₃)₂SO₂ (in the presence of Na₂CO₃) or CBr₃SO₂CH₃ (in the presence of NaHCO₃).Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 2, pp. 471–472, February, 1988.     

Analysis of the oscillation intensity of RHEED specular reflection during the MBE growth of CaF<Subscript>2</Subscript>/Si/CaF<Subscript>2</Subscript> structures

The results of analysis of the oscillation intensity of RHEED specular reflection during the MBE growth of CaF₂/Si(111) structures in a wide temperature range from 100 to 600°С are presented. It is shown that the preliminary formation of a 2D Si buffer layer provides the two-dimensional growth of CaF₂ layers. Possible reasons which for the disruption of 2D growth at high substrate temperatures are discussed.     

Low-toxicity complexes with nitrogen-containing ligands as promising new agents for treatment and prevention of free radical states

A method for synthesis of complexes with 1,5-pentamethylenetetrazole ligand was proposed. These compounds hold promise for antioxidant treatment of so-called “free radical” diseases of different geneses, including those caused by unfavorable environmental factors. The antioxidant activity of the complexes synthesized was tested by two independent methods: by assessing the ability to inhibit lipid peroxidation and by measuring the SOD-like activity.     

Environmental problems and their solutions of using energy-rich substances for initiating devices

The current state of the problem of replacing the primary explosives used in industrial products for more secure and the necessity of such a change because of the high toxicity of metals currently used in standard means of initiation are discussed. Problems of toxicity of metals used in the primary explosives are also addressed.     

STRUCTURE,MAGNETIC, AND MAGNETOCALORIC PROPERTIES OF SUBMICRONIC YTTRIUM IRON GARNET PARTICLES

Journal of Structural Chemistry - Scanning electron microscopy, X-ray diffraction, Raman and Mössbauer spectroscopies, field and temperature dependences of magnetic saturation and...