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- W3096353564 abstract "Recently, AIMD (ab initio molecular dynamics) has been extensively employed to explore the dynamical information of electronic systems. However, it remains extremely challenging to reliably predict the properties of nanosystems with radical nature using conventional electronic structure methods (e.g., Kohn-Sham density functional theory), because of the presence of static correlation. To address this challenge, we combine the recently formulated TAO-DFT (thermally-assisted-occupation density functional theory) with AIMD. The resulting TAO-AIMD method is employed to investigate the instantaneous/average radical nature and infrared spectra of n-acenes containing n linearly fused benzene rings (n = 2–8) at 300 K. According to the TAO-AIMD simulations, on average, the smaller n-acenes (up to n = 5) possess nonradical nature, and the larger n-acenes (n = 6–8) possess increasing radical nature, showing remarkable similarities to the ground-state counterparts at 0 K. Besides, the infrared spectra of n-acenes obtained with the TAO-AIMD simulations are in qualitative agreement with the existing experimental data." @default.
- W3096353564 created "2020-11-09" @default.
- W3096353564 creator A5047272679 @default.
- W3096353564 creator A5085151702 @default.
- W3096353564 date "2020-11-05" @default.
- W3096353564 modified "2023-09-29" @default.
- W3096353564 title "TAO-DFT-Based Ab Initio Molecular Dynamics" @default.
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- W3096353564 doi "https://doi.org/10.3389/fchem.2020.589432" @default.
- W3096353564 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7674663" @default.
- W3096353564 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/33251184" @default.
- W3096353564 hasPublicationYear "2020" @default.
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