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240902s2024 xx |||||o 00| ||eng c |
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|a 10.1002/jcc.27493
|2 doi
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|a pubmed24n1600.xml
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|a eng
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|a Máximo-Canadas, Matheus
|e verfasserin
|4 aut
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|a Ab initio electronic absorption spectra of para-nitroaniline in different solvents
|b Intramolecular charge transfer effects
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|c 2024
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|a Text
|b txt
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 08.11.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2024 Wiley Periodicals LLC.
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|a Intramolecular charge transfer (ICT) effects of para-nitroaniline (pNA) in eight solvents (cyclohexane, toluene, acetic acid, dichloroethane, acetone, acetonitrile, dimethylsulfoxide, and water) are investigated extensively. The second-order algebraic diagrammatic construction, ADC(2), ab initio wave function is employed with the COSMO implicit and discrete multiscale solvation methods. We found a decreasing amine group torsion angle with increased solvent polarity and a linear correlation between the polarity and ADC(2) transition energies. The first absorption band involves π → π* transitions with ICT from the amine and the benzene ring to the nitro group, increased by 4%-11% for different solvation models of water compared to the vacuum. A second band of pNA is characterized for the first time. This band is primarily a local excitation on the nitro group, including some ICT from the amine group to the benzene ring that decreases with the solvent polarity. For cyclohexane, the COSMO implicit solvent model shows the best agreement with the experiment, while the explicit model has the best agreement for water
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|a Journal Article
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|a Para–Nitroaniline
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|a electronic absorption spectra
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|a explicit and implicit solvent models
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|a intramolecular charge transfer (ICT)
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|a second band
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|a second‐order algebraic diagrammatic construction ADC(2)
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|a Modesto-Costa, Lucas
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Borges, Itamar
|c Jr
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of computational chemistry
|d 1984
|g 45(2024), 32 vom: 15. Nov., Seite 2899-2911
|w (DE-627)NLM098138448
|x 1096-987X
|7 nnns
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|g volume:45
|g year:2024
|g number:32
|g day:15
|g month:11
|g pages:2899-2911
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|u http://dx.doi.org/10.1002/jcc.27493
|3 Volltext
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