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• W4220937483 abstract "Potential energy (PE) curves along the proton transfer co-ordinate of ground and excited states of 9-Hydroxy-phenalen-1-one (9HPO) and 6-Hydroxy-benzo[de]anthracen-7-one (6HBAO) have been studied using DFT-CAM-B3LYP/6-311G(d,p) and TD-DFT-CAM-B3LYP/6-31G(d) level of theory, respectively. The choice of these two molecules is based on their symmetric and asymmetric nature for their intramolecular H-bonded six-membered ring systems. Ground and excited states of PE calculations show that due to lower potential energy barrier, 9-Hydroxy-phenalen-1-one (9HPO) and 6-Hydroxy-benzo[de]anthracen-7-one (6HBAO) can be in equilibrium with their enol and keto tautomeric forms. Computed values of global reactivity descriptors, that is, average polarisability (αav) and chemical hardness (η) along the proton transfer co-ordinate of both the molecules are very small although their variations conform with their respective optimum principles. Inspired by the significant variation of the first hyperpolarisabilty along the proton transfer co-ordinate of both the compounds, it is concluded that the first hyperpolarisability can serve as a better parameter to identify enol or keto tautomeric forms in enol keto equilibrium. The variation of average first hyper polarisability (βav) along the proton transfer co-ordinate follows the optical gap rule in both the molecules." @default.
• W4220937483 created "2022-04-03" @default.
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• W4220937483 date "2022-03-20" @default.
• W4220937483 modified "2023-09-27" @default.
• W4220937483 title "Computation of global reactivity descriptors along the proton transfer co-ordinate of 9-Hydroxy-phenalen-1-one and 6-Hydroxy-benzo[de]anthracen-7-one: a DFT-based comparative study" @default.
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• W4220937483 doi "https://doi.org/10.1080/00268976.2022.2047236" @default.
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