Role of the Electron–Dipole Interaction in Photodetachment Angular Distributions

2021 ◽  
pp. 10086-10092
Author(s):  
C. Annie Hart ◽  
Justin Lyle ◽  
Joseph Spellberg ◽  
Anna I. Krylov ◽  
Richard Mabbs
Keyword(s):  
Dipole Interaction ◽  
Angular Distributions

Study of the role of particle-particle dipole interaction in dielectrophoretic devices for biomarkers identification

2015 ◽  
pp. 9-12 ◽  
Author(s):  
Massimo Camarda ◽  
S. Baldo ◽  
G. Fisicaro ◽  
R. Anzalone ◽  
S. Scalese ◽  
...  
Keyword(s):  
Dipole Interaction

Role of the dipole-dipole interaction in the interpretation of quantum jumps in two three-level atoms

1989 ◽  
Vol 40 (6) ◽  
pp. 3434-3437 ◽  
Author(s):  
S. V. Lawande ◽  
Q. V. Lawande ◽  
B. N. Jagatap
Keyword(s):  
Dipole Interaction ◽  
Quantum Jumps

Theoretical Insights into the Role of Water Molecule in The Aqueous/Cu(111) Interface during Corrosion Pathway

2014 ◽  
Vol 19 (4) ◽  
pp. 235-240
Author(s):  
Jun Hu ◽  
Xiao-yong Fan ◽  
Chao-Ming Wang
Keyword(s):  
Water Molecule ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
Adsorbed Water ◽  
Dipole Interaction ◽  
Hydrogen Atoms ◽  
Functional Theory ◽  
Adsorbed Water Molecule ◽  
The One

The absorption and possible reaction paths during corrosion have been systematically identified at the molecular level by us-ing density functional theory calculations. The results show that the co-adsorbed water molecule has a two-fold impact on the corrosive kinetics process. The one is the solvation effect, where water molecule affects the various reactions through ion dipole interaction, without bond fracture and formation. Another is the H-transfer mediator, where the bond of co-adsorbed water molecule breaks and regenerates in order to transfer hydrogen atoms.

The leading role of the steric hindrance effect and dipole–dipole interaction in superlattice nanostructures formed via the assembly of discotic liquid crystals

2018 ◽  
Vol 42 (24) ◽  
pp. 20087-20094 ◽  
Author(s):  
Zhenhu Zhang ◽  
Huanzhi Yang ◽  
Jingze Bi ◽  
Ao Zhang ◽  
Yi Fang ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Steric Hindrance ◽  
Dipole Interaction ◽  
Discotic Liquid Crystals ◽  
Leading Role ◽  
Dipole Interactions

The effect of steric hindrance and dipole–dipole interactions are a prerequisite for the formation of ordered plastic phases.

Role of screening and angular distributions in resonant x-ray emission of CO

1997 ◽  
Vol 55 (1) ◽  
pp. 134-145 ◽  
Author(s):  
Per Skytt ◽  
Peter Glans ◽  
Kerstin Gunnelin ◽  
Jinghua Guo ◽  
Joseph Nordgren ◽  
...  
Keyword(s):  
Angular Distributions ◽  
X Ray

Scattering of α-particles by 11B nuclei at an energy of 40MeV and role of the exchange mechanism with transfer of 7Li

2018 ◽  
Vol 27 (11) ◽  
pp. 1850094
Author(s):  
N. Burtebayev ◽  
Maulen Nassurlla ◽  
Marzhan Nassurlla ◽  
N. Saduyev ◽  
A. Sabidolda ◽  
...  
Keyword(s):  
Deformation Parameter ◽  
Quadrupole Deformation ◽  
Collective Model ◽  
Negative Sign ◽  
Exchange Mechanism ◽  
Angular Distributions ◽  
Coupled Channels ◽  
Quadrupole Deformation Parameter ◽  
Α Particles

The elastic and inelastic scatterings of [Formula: see text]-particles were investigated at an energy of 40[Formula: see text]MeV with excitation of low-lying states of the [Formula: see text]B nucleus [0.0 (3/2[Formula: see text]), 4.445 (5/2[Formula: see text]), 6.74 (7/2[Formula: see text]), 2.125 (1/2[Formula: see text]) and 5.02[Formula: see text]MeV (3/2[Formula: see text])]. The analysis of the experimental angular distributions was carried out via the coupled channels method within the framework of the collective model. The value of the quadrupole deformation parameter [Formula: see text] was extracted. Calculations indicate a preference for a negative sign for deformation. It is shown that the exchange mechanism with the transfer of the heavy 7Li cluster does not play an important role in the scattering of [Formula: see text]-particles on [Formula: see text]B nuclei at an energy of 40[Formula: see text]MeV.

On the role of inertial effects and dipole-dipole coupling in the theory of the Debye and far-infrared absorption of polar fluids. II. Comparison with experimental observations

1987 ◽  
Vol 412 (1843) ◽  
pp. 339-388 ◽  
Keyword(s):  
Analytical Formula ◽  
Far Infrared ◽  
Intermediate Frequency ◽  
Dipole Interaction ◽  
Time Correlation ◽  
Moment Of Inertia ◽  
Peak Structure ◽  
The Moment ◽  
Excess Absorption

A general two-friction itinerant-oscillator model is given for molecular motion in dipolar fluids. The polarizability and relevant time-correlation functions are calculated by numerical methods. It is shown how the results of an earlier paper are obtained when the two frictions per unit inertia are equal. The model is compared with recent experimental measurements on hexanone-2 and acetonitrile obtained by using a new quasi-optical technique for frequencies intermediate between the MW and FIR spectral regions. This technique is described briefly; in particular, for a reasonable fitting of the theory to experiment the moment of inertia of the outer cage of molecules is always greater than that of the inner dipole in agreement with the original concept, namely a cage of dipoles surrounding a typical dipole. This is at variance with the earlier concept of the model where the friction on the encaged dipole is zero. There, for a good fit to experiment, the moment of inertia of the cage is always less than that of the dipole. This suggests that the two friction version should be used for such comparison. An analytical formula (analogous to the Rocard equation) for the polarizability derived earlier is shown to agree well with the result of numerical Fourier transformation of the response function. A distinct harmonic peak structure is noted in the FIR region of the spectrum when friction does not act on the inner dipole. The structure is damped out as this friction is increased. Thus only the first harmonic peak is significant when the frictions per unit inertia are approximately equal. Measurements in the frequency region (the intermediate region) lying between the microwave and the FIR for hexanone-2 in dilute solutions of cyclohexane are reported. These show a significant excess absorption over that predicted by the model in this region. It is suggested that the excess absorption arises from jumping of dipoles from well to well of the cosine potential of dipole-dipole interaction indicating that the effects of finite potential well depth must be incorporated in the model to explain the intermediate frequency absorption.

scholarly journals Multiphoton Ionization and Fragmentation of Hydrogen Chloride: A Diatomic Still Good for a Surprise

2011 ◽  
Vol 2011 ◽  
pp. 1-9 ◽  
Author(s):  
Christof Maul ◽  
Alexey I. Chichinin ◽  
Karl-Heinz Gericke
Keyword(s):  
Hydrogen Chloride ◽  
Multiphoton Ionization ◽  
Chemical Imaging ◽  
Angular Distributions ◽  
Ultraviolet Wavelength ◽  
Production Of Hydrogen ◽  
Minimum Potential ◽  
Fragmentation Processes ◽  
Competing Pathways

The competition between multiphoton ionization and fragmentation in the diatomic molecule hydrogen chloride is reviewed. Emphasis is laid on recent experimental results employing chemical imaging methods in order to obtain kinetic energy distributions and angular distributions of photoproducts. The energy range considered is 15 to 20 eV, equivalent to the absorption of three or four photons in the ultraviolet wavelength range. The role of Rydberg states as resonantly excited intermediate states in the ionization/fragmentation processes is assessed. Mixing among Σ1+ states gives rise to peculiarly shaped double minimum potential energy curves which allow for the production of hydrogen and chlorine atomic and ionic fragments via several competing pathways, in addition to the production of molecular HCl+ ions. States with different electronic properties show a qualitatively different behaviour from Σ+ states. Accidental resonances between states of differing orbital angular momentum or multiplicity serve to override these differences and cause subtle as well as significant deviations from the unperturbed behaviour.

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