The unique structure of [(C4H9)4N]3[Pb(NO3)5]—one step forward in understanding transport properties in tetra-n-butylammonium-based solid electrolytes

Structural Chemistry - The crystal and molecular structure of tris(tetrabutylammonium) pentanitratoplumbate(II) was determined and characterized by single-crystal and powder X-ray diffraction and...     

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...     

Study of the MPD detector capabilities for electron-positron pair measurements at the NICA collider

One of the main tasks of the NICA/MPD physics program is a study of low-mass vector mesons ρ, ω, ? by measuring their dileptonic decay channels. In this paper, the current status of simulations of electron-positron pair measurements in MPD is presented and the detector performance for such measurements is discussed.     

Physicochemical Properties of Highly Dispersed Iron Oxides Formed Inside Mesoporous Silica

Nanocomposites based on nanoparticles of iron oxides formed inside porous matrices were studied. Mesostructured silica material SBA-15 impregnated with an aqueous solution of iron(III) oxalate was heattreated in oxidizing (air) and reducing (Ar + 5% H₂) media. The resulting samples exhibited small oxide particle sizes (ca. 5 nm) and sufficiently uniform distribution of iron whose content was ~16 wt %.     

The geometrical aspects of the bell inequalities

The Bell inequalities of the metric form are introduced. The quantum-mechanical correlations of the particles with s=1/2 and photons are described using the relative measure of probability on the concave surfaces. The relation of the proposed scheme with the Bayes theorem about conditional information entropy and J. von Neumann's postulates is discussed.     

Structural features of hydrate forms of iron(III) oxalate

The existence of hydrate forms of iron(III) oxalate, which noticeably differ from each other in the Mössbauer spectral parameters (isomer shift and quadrupole splitting), is detected. In the assumption of the formation of phases with different structural characteristics, the samples of compound under study are examined by the powder X-ray diffraction analysis (including the application of synchrotron radiation), Mössbauer and IR spectroscopy. It is shown that the phase characterized by new values of the Mössbauer parameters has its own IR spectrum and it is X-ray amorphous and metastable.