scholarly journals Extraction of isotropic electron-nuclear hyperfine coupling constants of paramagnetic point defects from near-zero field magnetoresistance spectra via least squares fitting to models developed from the stochastic quantum Liouville equation

2020 ◽  
Vol 128 (12) ◽  
pp. 124504
Author(s):  
Elias B. Frantz ◽  
Nicholas J. Harmon ◽  
Stephen R. McMillan ◽  
Stephen J. Moxim ◽  
Michael E. Flatté ◽  
...  
Keyword(s):  
Least Squares ◽  
Point Defects ◽  
Liouville Equation ◽  
Hyperfine Coupling ◽  
Coupling Constants ◽  
Zero Field ◽  
Hyperfine Coupling Constants ◽  
Least Squares Fitting

The effect of charge and spin state on the Infrared spectra and hyperfine coupling constants of point defects in Silicon

2021 ◽  
pp. 413499
Author(s):  
Alexander Platonenko ◽  
Fabien Pascale ◽  
Khaled E. El-Kelany ◽  
Francesco Silvio Gentile ◽  
Roberto Dovesi
Keyword(s):  
Spin State ◽  
Point Defects ◽  
Infrared Spectra ◽  
Hyperfine Coupling ◽  
Coupling Constants ◽  
Hyperfine Coupling Constants

Theory of hyperfine coupling constants of solvated molecules: Applications involving methyl and ClO2 radicals in different solvents

1996 ◽  
Vol 104 (2) ◽  
pp. 629-635 ◽  
Author(s):  
Berta Fernández ◽  
Ove Christiansen ◽  
Ota Bludsky ◽  
Poul Jo/rgensen ◽  
Kurt V. Mikkelsen
Keyword(s):  
Hyperfine Coupling ◽  
Coupling Constants ◽  
Hyperfine Coupling Constants ◽  
Solvated Molecules

VIVO Versus VIVComplex Formation by Tridentate (O, Narom, O) Ligands: Prediction of Geometry, EPR51V Hyperfine Coupling Constants, and UV–Vis Spectra

2013 ◽  
Vol 52 (9) ◽  
pp. 5260-5272 ◽  
Author(s):  
Luisa Pisano ◽  
Katalin Várnagy ◽  
Sarolta Timári ◽  
Kaspar Hegetschweiler ◽  
Giovanni Micera ◽  
...  
Keyword(s):  
Hyperfine Coupling ◽  
Coupling Constants ◽  
Hyperfine Coupling Constants

scholarly journals Theoretical Investigations on the Reactivity of Methylidyne Radical toward 2,3,7,8-Tetrachlorodibenzo-p-Dioxin: A DFT and Molecular Dynamics Study

Molecules ◽  
2018 ◽  
Vol 23 (10) ◽  
pp. 2685 ◽  
Author(s):  
Weihua Wang ◽  
Wenling Feng ◽  
Wenliang Wang ◽  
Ping Li
Keyword(s):  
Molecular Dynamics ◽  
Ir Spectra ◽  
Ab Initio ◽  
Molecular Dynamics Simulations ◽  
Hyperfine Coupling ◽  
Coupling Constants ◽  
Ab Initio Molecular Dynamics ◽  
Hyperfine Coupling Constants ◽  
Dynamics Simulations ◽  
Ch Radical

To explore the potential reactivity of the methylidyne radical (CH) toward 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD), the reaction mechanism between them has been systematically investigated employing the density functional theory (DFT) and ab initio molecular dynamics simulations. The relevant thermodynamic and kinetic parameters in the possible reaction pathways have been discussed as well as the IR spectra and hyperfine coupling constants (hfcc’s) of the major products. Different from the reaction of the CH radical with 2,3,7,8-tetrachlorodibenzofuran, CH radical can attack all the C-C bonds of TCDD to form an initial intermediate barrierlessly via the cycloaddition mechanism. After then, the introduced C-H bond can be further inserted into the C-C bond of TCDD, resulting in the formation of a seven-membered ring structure. The whole reactions are favorable thermodynamically and kinetically. Moreover, the major products have been verified by ab initio molecular dynamics simulations. The distinct IR spectra and hyperfine coupling constants of the major products can provide some help for their experimental detection and identification. In addition, the reactivity of the CH radical toward the F- and Br-substituted TCDDs has also been investigated. Hopefully, the present findings can provide new insights into the reactivity of the CH radical in the transformation of TCDD-like dioxins.

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