Abstract
Abstract Light emitting or absorbing molecules have a wide range of industrial applications. To enable in-silico screening of a number of such molecules one should be able to predict their emission or absorption spectra rapidly and accurately. In the present study, we developed a combination of semi-empirical quantum mechanical (QM) simulations and a quantitative structure–property relationship (QSPR) modeling approach to compute such properties rapidly with a fair degree of accuracy. We focused our work on the prediction of the first absorption wavelength of a set of 40 fluorophores or polycyclic aromatic molecules. We also compared the results obtained from our QM–QSPR combination approach with those from different stand-alone semi empirical QM calculations and pure QSPR modeling approach. We showed that there is an advantage in the QM–QSPR combination approach for predicting and screening optical properties quickly and with a great deal of accuracy.
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