Theory of Multi-State Rotational Coupling Relevant to Inner-Shell Excitation

1981 ◽  
pp. 261-264 ◽  
Author(s):  
U. Wille
Keyword(s):  
Rotational Coupling

scholarly journals Charge transport in DNA model with vibrational and rotational coupling motions

2017 ◽  
Vol 43 (3) ◽  
pp. 341-353 ◽  
Author(s):  
H. Ngoubi ◽  
G. H. Ben-Bolie ◽  
T. C. Kofané
Keyword(s):  
Charge Transport ◽  
Rotational Coupling

Applications and Extensions of Statistical Theories

1996 ◽  
Author(s):  
Tomas Baer ◽  
William L. Hase
Keyword(s):  
Transition State ◽  
Density Of States ◽  
Rate Constant ◽  
Accurate Calculation ◽  
Vibrational Anharmonicity ◽  
Reactant Molecule ◽  
Rotational Coupling

The RRKM rate constant as given by equation (6.73) in the previous chapter is expressed as a ratio of the sum of states in the transition state and the density of states in the reactant molecule. An accurate calculation of this rate constant requires that all vibrational anharmonicity and vibrational/rotational coupling be included in calculating the sum and density.

scholarly journals Translational and rotational coupling in Brownian rods near a solid surface

2010 ◽  
Vol 82 (4) ◽  
Author(s):  
Adrian Neild ◽  
Johan T. Padding ◽  
Lu Yu ◽  
Basanta Bhaduri ◽  
Wim J. Briels ◽  
...  
Keyword(s):  
Solid Surface ◽  
Rotational Coupling

scholarly journals Nonlinear two-dimensional terahertz photon echo and rotational spectroscopy in the gas phase

2016 ◽  
Vol 113 (42) ◽  
pp. 11800-11805 ◽  
Author(s):  
Jian Lu ◽  
Yaqing Zhang ◽  
Harold Y. Hwang ◽  
Benjamin K. Ofori-Okai ◽  
Sharly Fleischer ◽  
...  
Keyword(s):  
Gas Phase ◽  
Degrees Of Freedom ◽  
Terahertz Spectroscopy ◽  
Electromagnetic Spectrum ◽  
Dynamic Features ◽  
Dipole Orientation ◽  
Rotational Spectra ◽  
Dipole Interactions ◽  
Linear Spectrum ◽  
Rotational Coupling

Ultrafast 2D spectroscopy uses correlated multiple light−matter interactions for retrieving dynamic features that may otherwise be hidden under the linear spectrum; its extension to the terahertz regime of the electromagnetic spectrum, where a rich variety of material degrees of freedom reside, remains an experimental challenge. We report a demonstration of ultrafast 2D terahertz spectroscopy of gas-phase molecular rotors at room temperature. Using time-delayed terahertz pulse pairs, we observe photon echoes and other nonlinear signals resulting from molecular dipole orientation induced by multiple terahertz field−dipole interactions. The nonlinear time domain orientation signals are mapped into the frequency domain in 2D rotational spectra that reveal J-state-resolved nonlinear rotational dynamics. The approach enables direct observation of correlated rotational transitions and may reveal rotational coupling and relaxation pathways in the ground electronic and vibrational state.

Electron Vacancy Production in Near-symmetric Collisions of 100 MeV Copper Ions

1981 ◽  
Vol 34 (2) ◽  
pp. 155 ◽  
Author(s):  
HJ Hay ◽  
LF Pender ◽  
PB Treacy
Keyword(s):  
High Resolution ◽  
Cross Sections ◽  
Copper Ions ◽  
X Rays ◽  
X Ray ◽  
Rotational Coupling ◽  
Cu Ions ◽  
Electron Vacancy ◽  
Production Target ◽  
Detector Characteristic

With a high-resolution Si(Li) X-ray detector, characteristic K X rays have been detected with targets of Cr, Fe, Cu, Ge and Se ombarded by 100 MeV Cu ions, equilibrated by passing through carbon. Cross sections for X-ray production, target-to-projectile vacancy-sharing ratios and K, to K, ratios were measured and compared with predictions of molecular-coupling theories. The results show little greement with existing models based on rotational coupling in molecular-orbital states.

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