Диметилсульфоксидные комплексы осмия. Кристаллическая структура комплекса [H(DMSO)₂][Os^IIIBr₄(DMSO)₂]

X-ray diffraction is used to study complex [H(dmso)2][OsBr4(dmso)2] (1). The compound crystallizes in the triclinic crystal system, space group P -1, unit cell parameters are as follows: a = 8.5942(3), b = 8.7621(3), c = 16.0193(6), V = 1072.25(7) Å3, a = 76.3740(10)°, b = 75.6060(10)°, g = 68.3790(10)°, Z = 2, R = 0.0270.Проведено рентгеноструктурное исследование комплекса [H(DMSO)2][OsBr4(DMSO)2] ( 1). Соединение кристаллизуется в триклинной сингонии, пр. гр. P-1, параметры элементарной ячейки: a = 8.5942(3), b = 8.7621(3), c = 16.0193(6) Å, V = 1072.25(7) Å3, α = 76.3740(10), β = 75.6060(10), γ = 68.3790(10)°, Z = 2, R = 0.0270

Osmium Dimethyl Sulfoxide Complexes. Crystal Structure of the Complex [H(DMSO)2][OsIIIBr4(DMSO)2]

X-ray diffraction is used to study complex [H(DMSO)2][OsBr4(DMSO)2] (1). The compound crystallizes in the triclinic crystal system, space group Pī, unit cell parameters are as follows: a = 8.5942(3) Å, b = 8.7621(3) Å, c = 16.0193(6) Å, V = 1072.25(7) Å3, α = 76.3740(10)°, β = 75.6060(10)°, γ = 68.3790(10)°, Z = 2, R = 0.0270. © 2018, Pleiades Publishing, Ltd

Диметилсульфоксидные комплексы осмия. Кристаллическая структура комплекса [H(DMSO)₂][Os^IIIBr₄(DMSO)₂]

X-ray diffraction is used to study complex [H(dmso)2][OsBr4(dmso)2] (1). The compound crystallizes in the triclinic crystal system, space group P -1, unit cell parameters are as follows: a = 8.5942(3), b = 8.7621(3), c = 16.0193(6), V = 1072.25(7) Å3, a = 76.3740(10)°, b = 75.6060(10)°, g = 68.3790(10)°, Z = 2, R = 0.0270.Проведено рентгеноструктурное исследование комплекса [H(DMSO)2][OsBr4(DMSO)2] ( 1). Соединение кристаллизуется в триклинной сингонии, пр. гр. P-1, параметры элементарной ячейки: a = 8.5942(3), b = 8.7621(3), c = 16.0193(6) Å, V = 1072.25(7) Å3, α = 76.3740(10), β = 75.6060(10), γ = 68.3790(10)°, Z = 2, R = 0.0270

Osmium Dimethyl Sulfoxide Complexes. Crystal Structure of the Complex [H(DMSO)2][OsIIIBr4(DMSO)2]

X-ray diffraction is used to study complex [H(DMSO)2][OsBr4(DMSO)2] (1). The compound crystallizes in the triclinic crystal system, space group Pī, unit cell parameters are as follows: a = 8.5942(3) Å, b = 8.7621(3) Å, c = 16.0193(6) Å, V = 1072.25(7) Å3, α = 76.3740(10)°, β = 75.6060(10)°, γ = 68.3790(10)°, Z = 2, R = 0.0270. © 2018, Pleiades Publishing, Ltd

Globalization of the transport system of the agro-industrial complex in the conditions of modern society

The article deals with the problem of transportation of agricultural products. The main causes of problems in this area are identified. The mechanism of creating favorable conditions in the system of globalization relations of the modern economy is analyzed. The fundamental elements in the transport system are competition orientation and information ownership over a certain period of time. Globalization involves the integration of different types of transport systems at the sectoral characteristics. The purpose of the research is to study the essence, meaning and prospects of the concept of “economic transport space in the national food supply system" in the processes of food market globalization. The main indicators of the “economic space" are: first, to determine the parameters that characterize the economic transport space, and secondly, to determine the prospects for using its structural elements in the system of transport supply relations, depending on the temporal and spatial components in the modern sector of the economy to provide food for the needs of society

Comparative analysis of nondestructive ASSAY techniques for 235U and 239Pu in structural materials at a high gamma background level

Potential techniques to identify small quantities of fissionable materials (FM) (0.001% wt.) in conditions of a high gamma background level have been reviewed and compared, and the optimal possibility for the nuclear material (NM) control in spent fuel assemblies (SFA) has been selected. It was found through numerical simulation that a system based on a passive neutron control method could be used to detect FMs indirectly when the spent nuclear fuel (SNF) burn-up and cooling time are known. Two types of detectors have been compared: 3He counters and 235U-based fission chambers. Better application prospects of 3He counters, based on the SNM-18 neutron counter, have been shown and drawbacks of passive control technique have been pointed out. An active neutron control has been found to be the best way to address the problem considered. The system's computational model shows that the signal exceeds the triple background error (both for ambient and intrinsic background from Cm isotopes) more than twelvefold. To improve the signal recording efficiency, the system has been modified to allow for irregularities in the geometrical position of structural materials (SM) in the measuring chamber. The proposed procedure makes it possible to determine in a short time the content of 239Pu, 242Cm, and 244Cm in an SFA. After the quantity of 239Pu is determined, it is possible to estimate the content of other isotopes (Am, U, Np) due to the constancy of the 239Pu mass ratio to the mass of the actinide identified

Intermolecular contacts for 224 001 molecular crystals from Cambridge Structural Database

The dataset consists of 96 enumerated csv-files with data on all intermolecular contacts shorter than 7 Å for 224 001 CSD entries analyzed in the corresponding work on van der Waals radi

Catalytic activity of phenyl substituted cyclopentadienyl neodymium complexes in the ethylene oligomerization process

New mono- and bis-cyclopentadienyl neodymium ate-complexes, bearing phenyl-substituents in the cyclopentadienyl ring, have been synthesized: KNdCp′Cl3(thf)x (Cp′ = 1,3-Ph2C5H3 (1), 1,2,4-Ph3C5H2 (2)) and KNdCp′2Cl2(thf)x (Cp′ = 1,3-Ph2C5H3 (3), 1,2,4-Ph3C5H2 (4), 1,2-Me2-4-PhC5H2 (5), 1,2-Ph2-4-(4-MeO-C6H4)C5H2 (6)). Their catalytic activity has been studied in ethylene oligomerization process in the presence of Bu2Mg as a chain transfer reagent with the Nd:Mg molar ratios being of 1:20, 1:40 or 1:80. Complex 4 exhibits catalytic activity close to the activity of the known complex [(C5Me5)2NdCl2Li(OEt2)2] (7). The complex 6 has demonstrated the best catalytic activity among all studied complexes. Using selected complexes 2, 4 and 6 as pre-catalysts, terminal iodo-functionalized oligoethylenes have been prepared. Obtained iodooligoethylenes have been studied by 1H NMR technique and MALDI mass-spectrometry with preliminary derivatization, demonstrating 70-90% of functionalization. Crystal structures of ate-complexes [{(1,2,4-Ph3C5H2)Nd(thf)}2Cl5K]2(toluene)4 (2a), [(1,2,4-Ph3C5H2)2NdCl2K(thf)0.53(1,4-dioxane)1.47]2(dioxane) (4a) and {[{1,2-Ph2-4-(4-MeO-C6H4)C5H2}2NdCl2K]2(1,4-dioxane)}(toluene)4 have been studied by the single crystal X-ray diffraction. © 2016 Elsevier B.V. All rights reserved

Catalytic activity of phenyl substituted cyclopentadienyl neodymium complexes in the ethylene oligomerization process

New mono- and bis-cyclopentadienyl neodymium ate-complexes, bearing phenyl-substituents in the cyclopentadienyl ring, have been synthesized: KNdCp′Cl3(thf)x (Cp′ = 1,3-Ph2C5H3 (1), 1,2,4-Ph3C5H2 (2)) and KNdCp′2Cl2(thf)x (Cp′ = 1,3-Ph2C5H3 (3), 1,2,4-Ph3C5H2 (4), 1,2-Me2-4-PhC5H2 (5), 1,2-Ph2-4-(4-MeO-C6H4)C5H2 (6)). Their catalytic activity has been studied in ethylene oligomerization process in the presence of Bu2Mg as a chain transfer reagent with the Nd:Mg molar ratios being of 1:20, 1:40 or 1:80. Complex 4 exhibits catalytic activity close to the activity of the known complex [(C5Me5)2NdCl2Li(OEt2)2] (7). The complex 6 has demonstrated the best catalytic activity among all studied complexes. Using selected complexes 2, 4 and 6 as pre-catalysts, terminal iodo-functionalized oligoethylenes have been prepared. Obtained iodooligoethylenes have been studied by 1H NMR technique and MALDI mass-spectrometry with preliminary derivatization, demonstrating 70-90% of functionalization. Crystal structures of ate-complexes [{(1,2,4-Ph3C5H2)Nd(thf)}2Cl5K]2(toluene)4 (2a), [(1,2,4-Ph3C5H2)2NdCl2K(thf)0.53(1,4-dioxane)1.47]2(dioxane) (4a) and {[{1,2-Ph2-4-(4-MeO-C6H4)C5H2}2NdCl2K]2(1,4-dioxane)}(toluene)4 have been studied by the single crystal X-ray diffraction. © 2016 Elsevier B.V. All rights reserved