Magneto-optical studies of atomic thallium centers in KCl: Magnetic circular dichroism tagged by spin resonance

1983 ◽  
Vol 28 (3) ◽  
pp. 1249-1255 ◽  
Author(s):  
F. J. Ahlers ◽  
F. Lohse ◽  
J. M. Spaeth ◽  
L. F. Mollenauer
2008 ◽  
Vol 36 (6) ◽  
pp. 1187-1190 ◽  
Author(s):  
Stephen J. Bingham ◽  
Daniel Wolverson ◽  
Andrew J. Thomson

The simultaneous excitation of paramagnetic molecules with optical (laser) and microwave radiation in the presence of a magnetic field can cause an amplitude, or phase, modulation of the transmitted light at the microwave frequency. The detection of this modulation indicates the presence of coupled optical and ESR transitions. The phenomenon can be viewed as a coherent Raman effect or, in most cases, as a microwave frequency modulation of the magnetic circular dichroism by the precessing magnetization. By allowing the optical and magnetic properties of a transition metal ion centre to be correlated, it becomes possible to deconvolute the overlapping optical or ESR spectra of multiple centres in a protein or of multiple chemical forms of a particular centre. The same correlation capability also allows the relative orientation of the magnetic and optical anisotropies of each species to be measured, even when the species cannot be obtained in a crystalline form. Such measurements provide constraints on electronic structure calculations. The capabilities of the method are illustrated by data from the dimeric mixed-valence CuA centre of nitrous oxide reductase (N2OR) from Paracoccus pantotrophus.


2020 ◽  
Vol 116 (20) ◽  
pp. 201905
Author(s):  
Biqiong Yu ◽  
Guichuan Yu ◽  
Jeff Walter ◽  
Vipul Chaturvedi ◽  
Joseph Gotchnik ◽  
...  

RSC Advances ◽  
2021 ◽  
Vol 11 (14) ◽  
pp. 8411-8419
Author(s):  
Jakub Kaminský ◽  
Valery Andrushchenko ◽  
Petr Bouř

Electronic absorption, natural and magnetic circular dichroism spectra of several nucleosides are simulated to understand their dependence on molecular dynamics and environment, their sensitivity to nucleoside pairing and stacking in nucleic acids.


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