نتایج جستجو برای: orthorhombic structure
تعداد نتایج: 1569430 فیلتر نتایج به سال:
Freezing of a Lennard-Jones fluid between solid surfaces was studied using grand canonical Monte Carlo and molecular dynamics simulations. We explored the formation of frozen phases of hexagonal and orthorhombic symmetry in mono-, bi-, and tri-layer structures. The freezing transition, the type of lattice, and translational and orientational ordering were identified on the basis of orientationa...
The atomic coordinates are given for yeast phenylalanine transfer RNA in the orthorhombic crystal form. The structure has been refined by fitting to successively improved electron density maps at 2.7 8 resolution. The model fitting has been accomplished by using an interactive computer graphics system to minimize the errors inherent in manual model building and coordinate measurements, using an...
In this data article, we presented the structural, optical, and electrical data of the nanodisk-shaped SnS layers. A facile formation of orthorhombic SnS derived from SnS2 particles was discussed in our previous study (Patel et al., 2017) [1]. The data includes the standard XRD patterns supercell structure of the Orthorhombic SnS material, the photograph of prepared samples, thickness dependent...
In [his research endo-3-diphenylphosphino -(IR)(+) camphor as a ligand was synthesised. 1.3 mmol of IrC12(NCPh)2 was added to the solution of 2.7 mmolligand in 15 ml dicloromethane, and after one hour it was evaporated at reduced pressure. By addition of methanol microcrystals of yellow complex of lridium(I) with 78% yield was obtained. Crystal structure of the above complex are orthorho...
The development, design and the performance evaluation of rare-earth doped host materials is important for further optical investigation and industrial applications. Herein, we successfully fabricate KLu2F7 upconversion nanoparticles (UCNPs) through hydrothermal synthesis by controlling the fluorine-to-lanthanide-ion molar ratio. The structural and morphological results show that the samples ar...
The hydrothermal method due to advantages of low reaction temperatures and achieving fine particles in synthesized samples was used. Li2SiO3 has orthorhombic structure with Cmc21 space group and cell parameters a = 9.392, b = 5.397 and c = 4.660Å. The structure, size and morphology of nano particles were investigated by XRD, FT-IR and SEM analysis methods. In addition, the cell parameters of l...
The structure of La(1/3)NbO3 is that of a perovskite with La3+ cations ordered into alternate layers of perovskite A-sites. This is the description of a tetragonal structure and yet the room-temperature structure shows an orthorhombic distortion. The structure of La(2/3)TiO3 shows similar features. It has been recognized only very recently that the orthorhombic distortion in both these compound...
The floating-zone method with different growth ambiences has been used to selectively obtain hexagonal or orthorhombic DyMnO(3) single crystals. The crystals were characterized by x-ray powder diffraction of ground specimens and a structure refinement as well as electron diffraction. We report magnetic susceptibility, magnetization and specific heat studies of this multiferroic compound in both...
effects of water on the catalytic performances of movtenbo catalyst in the oxidation of propane to acrylic acid have been investigated at different reaction temperatures and different steam contents. obtained results show that both catalytic performances and catalyst structure are very sensitive to the presence of water vapor in the reaction feed. presence of water induces some structural modif...
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