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• W4229014295 abstract "Abstract The important and perspective molecular building blocks composed of hexaphenylbenzenes (HPBs) or their oxidized derivatives, hexa-peri-hexabenzocoronenes (HBCs), and metalloporphyrins have recently received significant attention of the researchers. In this study, motivated by recent findings, we have addressed the modifications of structures and properties of HBC-porphyrin compounds by using instead of aromatic porphyrins antiaromatic 20π isophlorin derivatives of thiophene or selenophene. We have reported the first comparative computational investigation of the following systems: (i) HBC with one non-metallated aromatic porphyrin, P(N 4 H 2 ), unit, HBC-P(N 4 H 2 ), (ii) HBC with one S-core-modified antiaromatic porphyrin (S-isophlorin), PS 4 , unit, HBC-PS 4 , and (iii) HBC with one Se-core-modified antiaromatic porphyrin (Se-isophlorin), PSe 4 , unit, HBC-PSe 4 . The study has been done employing the B3LYP/6-31G* approach (in the gas phase and in the implicit solvents, benzene and dichloromethane), and comparison with the B3LYP/6-31G** and B3LYP/6-311G* approaches was performed, where relevant. The effects of the core-modified antiaromatic isophlorins on the structures, electronic, and other properties, potentially including reactivity, of the whole building block HBC-isophlorin have been shown to be quite pronounced and to be noticeably stronger than the effects of the original aromatic non-metallated porphyrin. Thus, we have demonstrated theoretically that the complete porphyrin core-modification with other elements, this time with S and Se leading to the formation of the antiaromatic isophlorins, should be considered as a promising way for modifying and tuning structures, electronic properties and reactivity of the hexabenzocoronene-porphyrin(s) building blocks." @default.
• W4229014295 created "2022-05-08" @default.
• W4229014295 creator A5047658314 @default.
• W4229014295 date "2022-01-21" @default.
• W4229014295 modified "2023-09-23" @default.
• W4229014295 title "Hexabenzocoronene functionalized with antiaromatic S- and Se-core-modified porphyrins (isophlorins): comparison with the dyad with regular porphyrin" @default.
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• W4229014295 doi "https://doi.org/10.1515/pac-2021-1105" @default.
• W4229014295 hasPublicationYear "2022" @default.
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