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| 001 | 153256 | ||
| 005 | 20210129213710.0 | ||
| 024 | 7 | _ | |a 10.1063/1.4871502 |2 doi |
| 024 | 7 | _ | |a 1089-7690 |2 ISSN |
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| 037 | _ | _ | |a FZJ-2014-02906 |
| 082 | _ | _ | |a 540 |
| 100 | 1 | _ | |a Theophilou, Iris |0 P:(DE-Juel1)145847 |b 0 |e Corresponding Author |u fzj |
| 245 | _ | _ | |a Charge transfer excitations from excited state Hartree-Fock subsequent minimization scheme |
| 260 | _ | _ | |a Melville, NY |c 2014 |b American Institute of Physics |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 336 | 7 | _ | |a ARTICLE |2 BibTeX |
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| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 520 | _ | _ | |a Photoinduced charge-transfer processes play a key role for novel photovoltaic phenomena and devices. Thus, the development of ab initiomethods that allow for an accurate and computationally inexpensive treatment of charge-transfer excitations is a topic that nowadays attracts a lot of scientific attention. In this paper we extend an approach recently introduced for the description of single and double excitations[M. Tassi, I. Theophilou, and S. Thanos, Int. J. Quantum Chem.113, 690 (2013); M. Tassi, I. Theophilou, and S. Thanos, J. Chem. Phys.138, 124107 (2013)] to allow for the description of intermolecular charge-transfer excitations. We describe an excitation where an electron is transferred from a donor system to an acceptor one, keeping the excited state orthogonal to the ground state and avoiding variational collapse. These conditions are achieved by decomposing the space spanned by the Hartree-Fock (HF) ground state orbitals into four subspaces: The subspace spanned by the occupied orbitals that are localized in the region of the donor molecule, the corresponding for the acceptor ones and two more subspaces containing the virtual orbitals that are localized in the neighborhood of the donor and the acceptor, respectively. Next, we create a Slater determinant with a hole in the subspace of occupied orbitals of the donor and a particle in the virtual subspace of the acceptor. Subsequently we optimize both the hole and the particle by minimizing the HF energy functional in the corresponding subspaces. Finally, we test our approach by calculating the lowest charge-transfer excitation energies for a set of tetracyanoethylene-hydrocarbon complexes that have been used earlier as a test set for such kind of excitations |
| 536 | _ | _ | |a 424 - Exploratory materials and phenomena (POF2-424) |0 G:(DE-HGF)POF2-424 |c POF2-424 |f POF II |x 0 |
| 588 | _ | _ | |a Dataset connected to CrossRef, juser.fz-juelich.de |
| 700 | 1 | _ | |a Tassi, M. |0 P:(DE-HGF)0 |b 1 |
| 700 | 1 | _ | |a Thanos, S. |0 P:(DE-HGF)0 |b 2 |
| 773 | _ | _ | |a 10.1063/1.4871502 |g Vol. 140, no. 16, p. 164102 - |0 PERI:(DE-600)1473050-9 |n 16 |p 164102 |t The @journal of chemical physics |v 140 |y 2014 |x 1089-7690 |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/153256/files/FZJ-2014-02906.pdf |y OpenAccess |
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