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Nuclear spin circular dichroism
University of Oulu, Finland .
CNR, Italy .
Linköping University, Department of Physics, Chemistry and Biology, Computational Physics. Linköping University, The Institute of Technology.
Linköping University, Department of Physics, Chemistry and Biology, Computational Physics. Linköping University, The Institute of Technology.
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2014 (English)In: Journal of Chemical Physics, ISSN 0021-9606, E-ISSN 1089-7690, Vol. 140, no 13, 134103- p.Article in journal (Refereed) Published
Abstract [en]

Recent years have witnessed a growing interest in magneto-optic spectroscopy techniques that use nuclear magnetization as the source of the magnetic field. Here we present a formulation of magnetic circular dichroism (CD) due to magnetically polarized nuclei, nuclear spin-induced CD (NSCD), in molecules. The NSCD ellipticity and nuclear spin-induced optical rotation (NSOR) angle correspond to the real and imaginary parts, respectively, of (complex) quadratic response functions involving the dynamic second-order interaction of the electron system with the linearly polarized light beam, as well as the static magnetic hyperfine interaction. Using the complex polarization propagator framework, NSCD and NSOR signals are obtained at frequencies in the vicinity of optical excitations. Hartree-Fock and density-functional theory calculations on relatively small model systems, ethene, benzene, and 1,4-benzoquinone, demonstrate the feasibility of the method for obtaining relatively strong nuclear spin-induced ellipticity and optical rotation signals. Comparison of the proton and carbon-13 signals of ethanol reveals that these resonant phenomena facilitate chemical resolution between non-equivalent nuclei in magneto-optic spectra.

Place, publisher, year, edition, pages
American Institute of Physics (AIP) , 2014. Vol. 140, no 13, 134103- p.
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Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-106854DOI: 10.1063/1.4869849ISI: 000334577300004OAI: oai:DiVA.org:liu-106854DiVA: diva2:720113
Available from: 2014-05-28 Created: 2014-05-23 Last updated: 2017-12-05

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Kauczor, JoannaNorman, Patrick

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  • harvard1
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