title: Induced-Polarization Energy Map:  A Helpful Tool for Predicting Geometric Features of Anion-π Complexes.
abstract: In this manuscript we propose the use of a new tool that we have found useful to predict the geometries of ion-π complexes. This tool is entitled the Induced-Polarization Energy map (IPE map). The novelty of this representation is that in the map only the contribution of the ion-induced polarization term to the total interaction energy for a given noncovalent interaction is contoured in a 2D region. The IPE map has been found useful to predict and explain geometries of several complexes of a tetrahedral 2 anion (BF4(-)) with perfluoropyrazine, perfluoropyridazine, perfluoropyrimidine, the three isomers of perfluorotriazine, and the three isomers of perfluorotetrazine.
authors.affiliation: Department of Chemistry, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain, and ICREA and Institute of Chemical Research of Catalonia (ICIQ), Avinguda Països Catalans 16, 43007 Tarragona, Spain.
authors.forename: Daniel
authors.initials: D
authors.lastname: Escudero
authors.affiliation: Department of Chemistry, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain, and ICREA and Institute of Chemical Research of Catalonia (ICIQ), Avinguda Països Catalans 16, 43007 Tarragona, Spain.
authors.forename: Antonio
authors.initials: A
authors.lastname: Frontera
authors.affiliation: Department of Chemistry, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain, and ICREA and Institute of Chemical Research of Catalonia (ICIQ), Avinguda Països Catalans 16, 43007 Tarragona, Spain.
authors.forename: David
authors.initials: D
authors.lastname: Quiñonero
authors.affiliation: Department of Chemistry, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain, and ICREA and Institute of Chemical Research of Catalonia (ICIQ), Avinguda Països Catalans 16, 43007 Tarragona, Spain.
authors.forename: Antoni
authors.initials: A
authors.lastname: Costa
authors.affiliation: Department of Chemistry, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain, and ICREA and Institute of Chemical Research of Catalonia (ICIQ), Avinguda Països Catalans 16, 43007 Tarragona, Spain.
authors.forename: Pablo
authors.initials: P
authors.lastname: Ballester
authors.affiliation: Department of Chemistry, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, E-07122 Palma de Mallorca, Spain, and ICREA and Institute of Chemical Research of Catalonia (ICIQ), Avinguda Països Catalans 16, 43007 Tarragona, Spain.
authors.forename: Pere M
authors.initials: PM
authors.lastname: Deyà