scholarly journals Vibrational anisotropy and quadrupole interactions of Fe substituted onto the Mn site of the charge and orbitally ordered and disordered layered manganitesLBaMn1.96Fe0.04O5andLBaMn1.96Fe0.04O6(L=Y, Gd, Sm, Nd, Pr, and La)

2009 ◽  
Vol 79 (22) ◽  
Author(s):  
A. I. Rykov ◽  
Y. Ueda ◽  
K. Nomura ◽  
M. Seto
Keyword(s):  
Quadrupole Interactions ◽  
Vibrational Anisotropy

27Al Hyperfine and Quadrupole Interactions for the [A104]0 Center in Quartz

1986 ◽  
Vol 136 (2) ◽  
pp. 709-714 ◽  
Author(s):  
R. B. Bossoli ◽  
L. E. Halliburton
Keyword(s):  
Quadrupole Interactions

Carbohydrate based hyper-crosslinked organic polymers with –OH functional groups for CO2 separation

2015 ◽  
Vol 3 (42) ◽  
pp. 20913-20918 ◽  
Author(s):  
Haiying Li ◽  
Bo Meng ◽  
Shannon M. Mahurin ◽  
Song-Hai Chai ◽  
Kimberly M. Nelson ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Functional Groups ◽  
Carbon Capture ◽  
Carbon Capture And Storage ◽  
Co2 Separation ◽  
Organic Polymers ◽  
Microporous Polymers ◽  
Quadrupole Interactions ◽  
And Storage

A class of novel hyper-crosslinked microporous polymers, based on green and renewable carbohydrates, was synthesized for carbon capture and storage with high CO2/N2 selectivity by hydrogen bonding and dipole–quadrupole interactions.

Molecular packing in crystals of the aromatic hydrocarbons

1965 ◽  
Vol 286 (1404) ◽  
pp. 98-116 ◽  
Keyword(s):  
Van Der Waals ◽  
Equilibrium Structure ◽  
Group Symmetry ◽  
Structural Variations ◽  
Angular Variation ◽  
Coupling Energy ◽  
Quadrupole Interactions ◽  
Quadrupole Coupling ◽  
Cell Dimensions ◽  
Unit Cell Dimensions

The van der Waals energy, quadrupole-quadrupole coupling energy, and hydrogen-hydrogen repulsions have been calculated for the equilibrium structure of crystalline naphthalene and for several displaced structures. The displacements are small rotations of the molecules about their symmetry axes, phased so that the space-group symmetry and unit-cell dimensions are preserved. For structural variations of this type the hydrogen-hydrogen repulsions have a strong minimum within a few degrees angular variation from equilibrium, indicating that these repulsions are dominant and determine the crystal structure for this class of displacement. The attractive van der Waals and quadrupole interactions on the other hand are not minimized at the equilibrium structure; they vary slowly (by a few wavenumbers per degree rotation) and approximately linearly.

Electric multipole interactions in the solid phases of the hydrogen halides

1977 ◽  
Vol 55 (11) ◽  
pp. 975-983 ◽  
Author(s):  
J. E. Vesel ◽  
B. H. Torrie
Keyword(s):  
Ferroelectric Phase ◽  
Molecular Crystals ◽  
Phase Model ◽  
Hydrogen Halides ◽  
Quadrupole Interactions ◽  
Solid Phases ◽  
Electric Multipoles

The ferroelectric and proposed paraelectric phases of the hydrogen halides have been studied using a lattice of molecules which are represented by a set of electric multipoles. This model shows the dominance of quadrupole–quadrupole interactions and the importance of other multipole interactions which affect the librational motions of these molecular crystals. A dynamic ferroelectric phase model was used to calculate the frequencies of the four librational modes.

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