Relevant bibliographies by topics / Restricted Open-Shell Kohn-Sham (ROKS)

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters

Academic literature on the topic 'Restricted Open-Shell Kohn-Sham (ROKS)'

Author: Grafiati
Published: 2 November 2024
Last updated: 31 July 2025

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Journal articles on the topic "Restricted Open-Shell Kohn-Sham (ROKS)"

1

Schulte, Marius, and Irmgard Frank. "Restricted open-shell Kohn–Sham theory: N unpaired electrons." Chemical Physics 373, no. 3 (2010): 283–88. http://dx.doi.org/10.1016/j.chemphys.2010.05.031.

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Büchel, Ralf, Luis Álvarez, Jan Grage, Dominykas Maniscalco, and Irmgard Frank. "On the Simulation of Photoreactions Using Restricted Open-Shell Kohn–Sham Theory." Molecules 29, no. 18 (2024): 4509. http://dx.doi.org/10.3390/molecules29184509.

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It is a well-established standard to describe ground-state chemical reactions at an ab initio level of multi-electron theory. Fast reactions can be directly simulated. The most widely used approach is density functional theory for the electronic structure in combination with molecular dynamics for the nuclear motion. This approach is known as ab initio molecular dynamics. In contrast, the simulation of excited-state reactions at this level of theory is significantly more difficult. It turns out that the self-consistent solution of the Kohn–Sham equations is not easily reached in excited-state
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3

Frank, Irmgard, and Konstantina Damianos. "Restricted open-shell Kohn-Sham theory: Simulation of the pyrrole photodissociation." Journal of Chemical Physics 126, no. 12 (2007): 125105. http://dx.doi.org/10.1063/1.2711188.

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4

Kowalczyk, Tim, Takashi Tsuchimochi, Po-Ta Chen, Laken Top, and Troy Van Voorhis. "Excitation energies and Stokes shifts from a restricted open-shell Kohn-Sham approach." Journal of Chemical Physics 138, no. 16 (2013): 164101. http://dx.doi.org/10.1063/1.4801790.

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5

Billeter, Salomon R., and Daniel Egli. "Calculation of nonadiabatic couplings with restricted open-shell Kohn-Sham density-functional theory." Journal of Chemical Physics 125, no. 22 (2006): 224103. http://dx.doi.org/10.1063/1.2360261.

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Nonnenberg, Christel, Christoph Bräuchle та Irmgard Frank. "Restricted open-shell Kohn–Sham theory for π–π* transitions. III. Dynamics of aggregates". Journal of Chemical Physics 122, № 1 (2005): 014311. http://dx.doi.org/10.1063/1.1829053.

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7

Langer, Holger, and Nikos L. Doltsinis. "Excited state tautomerism of the DNA base guanine: A restricted open-shell Kohn–Sham study." Journal of Chemical Physics 118, no. 12 (2003): 5400–5407. http://dx.doi.org/10.1063/1.1555121.

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Nonnenberg, Christel, Stephan Grimm та Irmgard Frank. "Restricted open-shell Kohn–Sham theory for π–π* transitions. II. Simulation of photochemical reactions". Journal of Chemical Physics 119, № 22 (2003): 11585–90. http://dx.doi.org/10.1063/1.1623743.

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9

Filatov, Michael, and Sason Shaik. "Application of spin-restricted open-shell Kohn–Sham method to atomic and molecular multiplet states." Journal of Chemical Physics 110, no. 1 (1999): 116–25. http://dx.doi.org/10.1063/1.477941.

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Grimm, Stephan, Christel Nonnenberg та Irmgard Frank. "Restricted open-shell Kohn–Sham theory for π–π* transitions. I. Polyenes, cyanines, and protonated imines". Journal of Chemical Physics 119, № 22 (2003): 11574–84. http://dx.doi.org/10.1063/1.1623742.

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Dissertations / Theses on the topic "Restricted Open-Shell Kohn-Sham (ROKS)"

1

Grimm, Stephan. "Theoretische Untersuchung von pi-Bindungssystemen im Restricted Open Shell Kohn-Sham-Modell." Diss., lmu, 2005. http://nbn-resolving.de/urn:nbn:de:bvb:19-47476.

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Grimm, Stephan Michael. "Theoretische Untersuchung von p-Bindungssystemen [Pi-Bindungssystemen] im Restricted-open-shell-Kohn-Sham-Modell." [S.l.] : [s.n.], 2005. http://edoc.ub.uni-muenchen.de/archive/00004747.

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Diarra, Cheick Oumar. "Modélisation par dynamique moléculaire ab initio du transport des excitons et du transport thermique dans les semiconducteurs organiques pour la collecte d'énergie." Electronic Thesis or Diss., Strasbourg, 2024. http://www.theses.fr/2024STRAD013.

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L'exciton joue un rôle clé dans le fonctionnement des cellules solaires organiques (OSCs). Comprendre sa dynamique dans les semiconducteurs organiques est essentiel, notamment pour améliorer la longueur de diffusion, une propriété déterminante pour la performance des hétérojonctions planaires, envisagées comme une alternative plus stable aux hétérojonctions en volume (BHJ). Dans la première partie de cette thèse, nous avons développé une approche méthodologique robuste et polyvalente pour évaluer la longueur de diffusion de l'exciton dans les semiconducteurs organiques. Cette approche, basée s
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4

Grimm, Stephan Michael [Verfasser]. "Theoretische Untersuchung von π-Bindungssystemen [Pi-Bindungssystemen] im Restricted-open-shell-Kohn-Sham-Modell / von Stephan Michael Grimm". 2005. http://d-nb.info/978848551/34.

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Book chapters on the topic "Restricted Open-Shell Kohn-Sham (ROKS)"

1

Schautz, F., F. Buda, and C. Filippi. "Excitations in photoactive molecules from quantum Monte Carlo." In Quantum Monte Carlo. Oxford University PressNew York, NY, 2007. http://dx.doi.org/10.1093/oso/9780195310108.003.00149.

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Abstract Among the several quantum approaches to the accurate description of excitation processes in biological systems, the most promising candidates are: CASPT2, complete active space second-order perturbation theory; TDDFT, time-dependent density functional theory; ROKS, the restricted open-shell Kohn-Sham method; and QMC, quantum Monte Carlo. Each of these has its disadvantages. CASPT2 scales poorly with system size and is limited to smaller molecules. ROKS and TDDFT can be applied to very large systems but they may or may not be adequate for photoactive molecules. QMC scales favorably wit
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2

Autschbach, Jochen. "Self-consistent Field Orbital Methods." In Quantum Theory for Chemical Applications. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780190920807.003.0008.

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This chapter discusses the concepts underlying the Hartree-Fock (HF) electronic structure method. First, it is shown how the energy expectation value is calculated for a Slater determinant (SD) wavefunction in the case of orthonormal orbitals. This leads to the definition of the electron repulsion integrals (ERIs). Next, the energy is minimized subject to the orthonormality constraints. This leads to the HF equation for the orbitals. The HF orbital energies are Langrange multipliers representing the constraints. An unknown set of orbitals can be determined from an initial guess via a self-cons
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Journal articles
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