Dynamic single-site polysulfide immobilization in long-range disorder Cu-MOFs

2020 ◽  
Vol 56 (69) ◽  
pp. 10074-10077
Author(s):  
Ju Sun ◽  
Xinxin Lu ◽  
Kuang-Hsu Wu ◽  
Jingwei Hou ◽  
Ruopian Fang ◽  
...  
Keyword(s):  
Long Range ◽  
Structural Transformation ◽  
Single Site ◽  
Cell Discharge ◽  
Frame Work ◽  
Copper Cations

The dynamic structural transformation of Cu-MOFs during cell discharge and recharge involves irreversible frame-work amorphization and interconvertible single copper cations.

LIQUID–VAPOUR EQUILIBRIUM WITH DOUBLE YUKAWA POTENTIAL

1999 ◽  
Vol 13 (27) ◽  
pp. 3261-3281 ◽  
Author(s):  
ISSAM ALI ◽  
S. M. OSMAN ◽  
M. AL-BUSAIDI ◽  
R. N. SINGH
Keyword(s):  
Long Range ◽  
Yukawa Potential ◽  
Long Range Correlations ◽  
First Order ◽  
Statistical Mechanical ◽  
Frame Work ◽  
Double Yukawa Potential ◽  
Calculated Liquid ◽  
First Order Perturbation ◽  
Good Agreement

A statistical mechanical based theory is developed for incorporating the long range correlations in the frame work of the first order perturbation theory to study the liquid–vapour equilibrium. The transition temperature and the liquid–vapour coexistence curves are found to depend considerably on the long range correlations and on the realistic radial distribution function. The calculated liquid–vapour equilibrium curves are in good agreement with the computer simulation results.

Ordering Energy of B2 Alloys Calculated in the Frozen Potential and Harris Approximations

1990 ◽  
Vol 186 ◽  
Author(s):  
W. A. Shelton ◽  
D. M. Nicholson ◽  
G. M. Stocks ◽  
F. J. Pinski ◽  
D. D. Johnson ◽  
...  
Keyword(s):  
Long Range ◽  
Natural Extension ◽  
Coherent Potential Approximation ◽  
Range Order ◽  
Single Site ◽  
Long Range Order ◽  
Potential Approximation ◽  
Charge Densities ◽  
Ordered Alloys ◽  
Random Alloys

AbstractIt has been established that the coherent potential approximation can successfully describe the energy of random alloys [1]. It has also served as the basis of generalized perturbation method [2] and concentration wave [3] xscalculations of the energy of short range ordered alloys. The multisublattice coherent potential, (MCPA) is the natural extension of the CPA with which to address long range order (LRO). Using the recently developed multisublattice coherent potential approximation Korringa Kohn Rostoker [4], (MCPA-KKR) code the elgenvalue sum can be calculated as a function of LRO. This allows the evaluation of the ordering energy by either of two approximations. The frozen potential approximation (FPA) [5] assumes that the muffintin single site potentials do not change as the long range order is varied; the Harris Approximation, (HA) [6], as applied in this work, assumes that the single site charge densities do not change as the long range order is changed. These two methods of calculating the ordering energy will be compared with each other and to experiment for several systems including CuZn, NiAl, and NiAl with zinc additions.

Long-range intramolecular electron transfer in wild type and single site mutated azurins

1993 ◽  
Vol 51 (1-2) ◽  
pp. 142
Author(s):  
O. Farver ◽  
L.K. Skov ◽  
G.W. Canters ◽  
M.v.d. Kamp ◽  
L. Lundberg ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Long Range ◽  
Single Site ◽  
Intramolecular Electron Transfer ◽  
Wild Type

Long-Range Hierarchical Nanocrystal Assembly Driven by Molecular Structural Transformation

2018 ◽  
Vol 141 (4) ◽  
pp. 1498-1505 ◽  
Author(s):  
Enbo Zhu ◽  
Shiyi Wang ◽  
Xucheng Yan ◽  
Masoud Sobani ◽  
Lingyan Ruan ◽  
...  
Keyword(s):  
Long Range ◽  
Structural Transformation ◽  
Nanocrystal Assembly

Atomic orientation effects in proton stopping at low velocity

1983 ◽  
Vol 41 ◽  
pp. 708-709
Author(s):  
Kin Lam
Keyword(s):  
Polycrystalline Material ◽  
Charged Particles ◽  
Target Material ◽  
Stopping Power ◽  
Low Velocity ◽  
Electronic Density ◽  
Interatomic Distances ◽  
Frame Work ◽  
Image Position ◽  
Atomic Orientation

The energy of moving ions in solid is dependent on the electronic density as well as the atomic structural properties of the target material. These factors contribute to the observable effects in polycrystalline material using the scanning ion microscope. Here we outline a method to investigate the dependence of low velocity proton stopping on interatomic distances and orientations.The interaction of charged particles with atoms in the frame work of the Fermi gas model was proposed by Lindhard. For a system of atoms, the electronic Lindhard stopping power can be generalized to the formwhere the stopping power function is defined as

The structure of pre-mRNA and mRNA from erythroid cells

1978 ◽  
Vol 36 (2) ◽  
pp. 234-235
Author(s):  
A.-M. Ladhoff ◽  
B.J. Thiele ◽  
Ch. Coutelle ◽  
S. Rosenthal
Keyword(s):  
Bone Marrow ◽  
Structural Transformation ◽  
Electron Micrographs ◽  
Ammonium Acetate ◽  
Bone Marrow Cells ◽  
Erythroid Cells ◽  
Globin Mrna ◽  
Ordered Structures ◽  
Rabbit Bone ◽  
Rabbit Reticulocytes

The suggested precursor-product relationship between the nuclear pre-mRNA and the cytoplasmic mRNA has created increased interest also in the structure of these RNA species. Previously we have been published electron micrographs of individual pre-mRNA molecules from erythroid cells. An intersting observation was the appearance of a contour, probably corresponding to higher ordered structures, on one end of 10 % of the pre-mRNA molecules from erythroid rabbit bone marrow cells (Fig. 1A). A virtual similar contour was observed in molecules of 9S globin mRNA from rabbit reticulocytes (Fig. 1B). A structural transformation in a linear contour occurs if the RNA is heated for 10 min to 90°C in the presence of 80 % formamide. This structural transformation is reversible when the denatured RNA is precipitated and redissolved in 0.2 M ammonium acetate.

Structural Transformation of a Germanium Σ=13 (510) [001] Tilt Grain Boundary under the Electron Beam

1990 ◽  
Vol 48 (1) ◽  
pp. 52-53 ◽  
Author(s):  
Jean-Luc Rouvière ◽  
Alain Bourret
Keyword(s):  
Electron Microscopy ◽  
High Resolution ◽  
Grain Boundary ◽  
Structural Transformation ◽  
Mirror Symmetry ◽  
High Resolution Electron Microscopy ◽  
Structural Transformations ◽  
Covalent Bonds ◽  
Resolution Electron ◽  
Tilt Grain Boundary

The possible structural transformations during the sample preparations and the sample observations are important issues in electron microscopy. Several publications of High Resolution Electron Microscopy (HREM) have reported that structural transformations and evaporation of the thin parts of a specimen could happen in the microscope. Diffusion and preferential etchings could also occur during the sample preparation.Here we report a structural transformation of a germanium Σ=13 (510) [001] tilt grain boundary that occurred in a medium-voltage electron microscopy (JEOL 400KV).Among the different (001) tilt grain boundaries whose atomic structures were entirely determined by High Resolution Electron Microscopy (Σ = 5(310), Σ = 13 (320), Σ = 13 (510), Σ = 65 (1130), Σ = 25 (710) and Σ = 41 (910), the Σ = 13 (510) interface is the most interesting. It exhibits two kinds of structures. One of them, the M-structure, has tetracoordinated covalent bonds and is periodic (fig. 1). The other, the U-structure, is also tetracoordinated but is not strictly periodic (fig. 2). It is composed of a periodically repeated constant part that separates variable cores where some atoms can have several stable positions. The M-structure has a mirror glide symmetry. At Scherzer defocus, its HREM images have characteristic groups of three big white dots that are distributed on alternatively facing right and left arcs (fig. 1). The (001) projection of the U-structure has an apparent mirror symmetry, the portions of good coincidence zones (“perfect crystal structure”) regularly separate the variable cores regions (fig. 2).

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