S1 Correlations between Fukui Indices and Reactivity Descriptors based on the Sanderson’s Principle Jesús Sánchez-Márquez* 1 . 1 Departamento de Química-Física, Facultad de Ciencias, Campus Universitario Río San Pedro, Universidad de Cádiz, 11510 Puerto Real, Cádiz, Spain *To whom correspondence should be addressed. E-mail: jesus.sanchezmarquez@uca.es ------------------------------------------------------------------------------------------------------- SUPPORTING INFORMATION FIGURES y = 1.0311x + 0.0042 R 2 = 0.9771 0.00 0.02 0.04 0.06 0.08 0.10 0.12 0.00 0.02 0.04 0.06 0.08 0.10 0.12 Figure S1. values calculated with the first model (Eq. 10) vs. calculated max A N  max A N  with the second model (Eq. 25) for the molecule CH 2 CHCHO. The values of the two parameters have been obtained using the Hirshfeld population analysis.