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Non-covalent forces in Naphthazarin—cooperativity or competition in the light of theoretical approaches.

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dc.abstract.enNon-covalent interactions responsible for molecular features and self-assembly in Naphthazarin C polymorph were investigated on the basis of diverse theoretical approaches: Density Functional Theory (DFT), Diffusion Quantum Monte Carlo (DQMC), Symmetry-Adapted Perturbation Theory (SAPT) and Car-Parrinello Molecular Dynamics (CPMD). The proton reaction paths in the intramolecular hydrogen bridges were studied. Two potential energy minima were found indicating that the proton transfer phenomena occur in the electronic ground state. Diffusion Quantum Monte Carlo (DQMC) and other levels of theory including Coupled Cluster (CC) employment enabled an accurate inspection of Potential Energy Surface (PES) and revealed the energy barrier for the proton transfer. The structure and reactivity evolution associated with the proton transfer were investigated using Harmonic Oscillator Model of Aromaticity - HOMA index, Fukui functions and Atoms In Molecules (AIM) theory. The energy partitioning in the studied dimers was carried out based on Symmetry-Adapted Perturbation Theory (SAPT) indicating that dispersive forces are dominant in the structure stabilization. The CPMD simulations were performed at 60 K and 300 K in vacuo and in the crystalline phase. The temperature influence on the bridged protons dynamics was studied and showed that the proton transfer phenomena were not observed at 60 K, but the frequent events were noticed at 300 K in both studied phases. The spectroscopic signatures derived from the CPMD were computed using Fourier transformation of autocorrelation function of atomic velocity for the whole molecule and bridged protons. The computed gas-phase IR spectra showed two regions with OH absorption that covers frequencies from 2500 cm−1 to 2800 cm−1 at 60 K and from 2350 cm−1 to 3250 cm−1 at 300 K for both bridged protons. In comparison, the solid state computed IR spectra revealed the environmental influence on the vibrational features. For each of them absorption regions were found between 2700–3100 cm−1 and 2400–2850 cm−1 at 60 K and 2300–3300 cm−1 and 2300–3200 cm−1 at 300 K respectively. Therefore, the CPMD study results indicated that there is a cooperation of intramolecular hydrogen bonds in Naphthazarin molecule.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorLüchow, Arne
dc.contributor.authorJezierska, Aneta
dc.contributor.authorPanek, Jarosław
dc.contributor.authorKlahm, Sebastian
dc.contributor.authorBłaziak, Kacper
dc.date.accessioned2024-01-25T13:50:47Z
dc.date.available2024-01-25T13:50:47Z
dc.date.copyright2021-07-27
dc.date.issued2021
dc.description.accesstimeAT_PUBLICATION
dc.description.financePublikacja bezkosztowa
dc.description.number15
dc.description.versionFINAL_PUBLISHED
dc.description.volume22
dc.identifier.doi10.3390/IJMS22158033
dc.identifier.issn1422-0067
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/113834
dc.identifier.weblinkhttp://dx.doi.org/10.3390/ijms22158033
dc.languageeng
dc.pbn.affiliationchemical sciences
dc.relation.ispartofInternational Journal of Molecular Sciences
dc.relation.pages8033
dc.rightsCC-BY
dc.sciencecloudnosend
dc.subject.enNaphthazarin C
dc.subject.en5,8-dihydroxynaphthalene-1
dc.subject.en4-dione
dc.subject.enhydrogen bond
dc.subject.engas phase
dc.subject.encrystalline phase
dc.subject.enDFT
dc.subject.enMP2
dc.subject.enDQMC
dc.subject.enCC
dc.subject.enHOMA index
dc.subject.enFukui function
dc.subject.enAIM
dc.subject.enSAPT
dc.subject.enCPMD
dc.titleNon-covalent forces in Naphthazarin—cooperativity or competition in the light of theoretical approaches.
dc.typeJournalArticle
dspace.entity.typePublication