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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/jcc.27106
|2 doi
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|a pubmed24n1183.xml
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|a eng
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|a Summa, Francesco Ferdinando
|e verfasserin
|4 aut
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|a On the computation of frequency-dependent molecular magnetizabilities via dynamical charge and current electron densities
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 07.05.2023
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|a Date Revised 07.05.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 The Authors. Journal of Computational Chemistry published by Wiley Periodicals LLC.
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|a In the computation of molecular dynamic magnetizabilities and magnetic dipole moments, three different reference points are required: (i) origin of coordinate system, (ii) origin of vector potential A , and (iii) origin of multipole expansion. This study shows that methods relying on continuous translation of origin of the current density I B r ω t induced by optical magnetic fields provide an effective solution to the problem of choices (i) and (ii), in that they yield origin independent I B within the algebraic approximation, for any basis set. Frequency-dependent magnetizabilities are also invariant with respect to (iii), as a consequence of symmetry, for a number of molecular point groups. In molecules of lower symmetries, computed magnetizabilities depend on origin of the multipole expansion. Large basis set computations carried out for water, ammonia, methane, ethane, ethylene, boranylborane, and hydroxilamine, at the DFT level, have been reported to document these statements. A comparison is made for results obtained within the conventional common origin approach for static magnetic field. Sum rules for invariance of computed properties are discussed. Representations of streamlines and stagnation graphs of dynamical current density vector field induced in the water molecule by monochromatic waves of four frequencies are displayed
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|a Journal Article
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1 |
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|a Zanasi, Riccardo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lazzeretti, Paolo
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of computational chemistry
|d 1984
|g 44(2023), 16 vom: 15. Juni, Seite 1517-1530
|w (DE-627)NLM098138448
|x 1096-987X
|7 nnns
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| 773 |
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|g volume:44
|g year:2023
|g number:16
|g day:15
|g month:06
|g pages:1517-1530
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|u http://dx.doi.org/10.1002/jcc.27106
|3 Volltext
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