Abstract
In our quest to explore molecules with chemically significant regions where the Fukui function is negative, we explored reactions where the frontier orbital that indicates the sites for electrophilic attack is not the highest occupied molecular orbital. The highest occupied molecular orbital (HOMO) controls the location of the regions where the Fukui function is negative, supporting the postulate that negative values of the Fukui function are associated with orbital relaxation effects and nodal surfaces of the frontier orbitals. Significant negative values for the condensed Fukui function, however, were not observed.
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Acknowledgments
P.W.A. thanks the Canada Research Chairs and Natural Sciences and Engineering Research Council of Canada (NSERC) for funding. Computational facilities were provided by Sharcnet. E.E. and A.T.L. acknowledge financial support from Fondecyt through project N°1090460. C.C. acknowledge financial support from Fondecyt through project No 11090013 and also by Financiamiento basal para centros científicos y tecnológicos de excelencia. J.S.M.A. would like to thank NSERC and The Japan Society for the Promotion of Science (JSPS) for funding.
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Echegaray, E., Cárdenas, C., Rabi, S. et al. In pursuit of negative Fukui functions: examples where the highest occupied molecular orbital fails to dominate the chemical reactivity. J Mol Model 19, 2779–2783 (2013). https://doi.org/10.1007/s00894-012-1637-3
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DOI: https://doi.org/10.1007/s00894-012-1637-3