Two Isomers of C6H6F9O9Tb

Two isomers with empirical formula C₆H₆F₉O₉Tb are synthesized and their structures are studied. Isomerism was found to arise due to different positions of a proton. Crystals of two isomers are isostructural and form continuous series of solid solutions with C₆H₆F₉O₉Eu.     

Transition-metal bimaleates and their solid solutions: Synthesis,structural, and thermoanalytical study

Transition-metal hydrogen maleates of composition M(C₄H₃O₄)₂ · 4H₂O, where M = Mn, Fe, Co, and Ni, and their solid solutions were synthesized and characterized by X-ray crystallography, IR spectroscopy, mass spectrometry, and thermal analysis. X-ray crystallography and IR spectroscopy showed that both intramolecular and intermolecular H-bonds exist in these compounds. The generation of continuous substitutional solid solutions with cation substitution in these compounds was studied. The thermolysis mechanism was studied for both transition-metal hydrogen maleates and their solid solutions. The composite produced by thermolysis is stable up to 1200°C in flowing helium.     

X-ray diffraction study of scanium(III) and indium(III) tris(dipivaloylmethanates)

Conclusions An x-ray diffraction study was carried out for scandium(III) and indium(III) tris(di pivaloylmethanates). The similarity of the unit cell parameters, the reflection indices and analogous ratios of the intensities of the major lines in the diffraction patterns indicate the isostructural nature of Sc(DPM)₃ and In(DPM)₃ with Fe(DPM)₃.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 9, pp. 2098–2099, September, 1987.     

Structure of intercalated compounds of graphite fluoride C2FX

Conclusion The results obtained in the present work show that the use of the method proposed in [3] to study the structure of intercalated compounds of graphite fluoride has made it possible to resolve in principle the question of the distribution of the C₂F_X layers along the z axis in these compounds and to determine the nature of the arrangement of the inserted molecules between the layers.In intercalated compounds of stage I with an expanded structure of the filled layer, the molecules of the inserted solvent are distributed chiefly in two layers between the C₂F_x layers, whereas in the compounds with the simple structure they are distributed in one layer.In the intercalated compounds of stage II, the thickness of the unfilled layer is 6 Å, and the thickness of the filled layer coincides with the thickness of the layer in the corresponding inercalated compounds of stage I with the simple structure of the filled layer.The fluorine atoms in C₂F_x are arranged symmetrically on each side of the carbon layer.In the intercalated compounds heated to a temperature of 200°C, the graphite fluoride layers form stacks with a distance of 6.0 Å between the layers.On the basis of the results obtained, it has been suggested that the most probable reason for the strong retention of the inserted component in the intercalated compounds of stage II is the paired linking of the edge sections of the C₂F_x layers.Institute of Inorganic Chemistry, Siberian Branch, Academy of Sciences of the USSR. Translated from Zhurnal Strukturnoi Khimii, Vol. 29, No. 3, pp. 78–83, May–June, 1988.     

Crystallographic data for bis[4-[(2-oxystyryl)methyl]-2,2,5,5-tetramethyl-3-imidazolin-1-oxyl]cobalt(II)

Conclusions The unit-cell parameters of the chelate compound bis[4-[(2-oxystyryl)-methyl]-2,2, 5, 5-tetramethyl-3-imidazolin-1-oxyl]cobalt(II) were determined and refined with a single-crystal spectrometer.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2711–2712, December, 1984.