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- W2077696579 endingPage "478" @default.
- W2077696579 startingPage "468" @default.
- W2077696579 abstract "In this study initial molecular structures of benzene, pyrazine, pyridazine, pyridine, pyrimidine, cyclopentadiene, furan, pyrrole and thiophene have been optimized at the ground (S0) and excited (S1) states using density functional theory (DFT) and time-dependent density functional theory (TD-DFT), respectively. We also evaluate the distribution patterns of HOMOs (highest occupied molecular orbitals) and LUMOs (lowest unoccupied molecular orbitals) for these molecules at the ground (S0) and excited (S1) states. The photophysical properties, i.e., absorption (λa), and emission (λe), have been computed by TD-DFT. The calculations regarding to reorganization energies, vertical electron affinity (EAv), adiabatic electron affinity (EAa), vertical ionization potential (IPv) and adiabatic ionization potential (IPa) of the investigated molecules have been performed by applying DFT to shed light on the charge transfer properties. The effect of heteroatoms substitution on the geometrical parameters, electronic, optical and charge transfer properties has also been investigated. It was observed that benzene, furan, pyrazine, pyridazine, pyridine and pyrimidine have higher IPa compared to that of cyclopentadiene, pyrrole and thiophene. Pyridazine, pyrazine, pyridine and pyrimidine have higher EAa than that of cyclopentadiene, pyrrole and thiophene. The benzene and cyclopentadiene have low hole reorganization energies λ(h) compared to their electron reorganization energies λ(e), so they might be used as good hole transport co-monomers. The molecules of pyrazine, pyridazine, pyridine, pyrimidine, furan, pyrrole and thiophene have the electron reorganization energies λ(e) smaller than their hole reorganization energies λ(h) revealing these would be better to design electron transport materials." @default.
- W2077696579 created "2016-06-24" @default.
- W2077696579 creator A5006856891 @default.
- W2077696579 creator A5028254909 @default.
- W2077696579 creator A5045599700 @default.
- W2077696579 creator A5082403630 @default.
- W2077696579 date "2013-03-01" @default.
- W2077696579 modified "2023-09-23" @default.
- W2077696579 title "Quantum chemical approach toward the electronic, photophysical and charge transfer properties of the materials used in organic field-effect transistors" @default.
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- W2077696579 doi "https://doi.org/10.1016/j.matchemphys.2012.11.075" @default.