OFF/ON switching of circularly polarized luminescence by oxophilic interaction of homochiral sulfoxide-containing o-OPEs with metal cations. - Reiné P; Ortuño AM; Resa S; Álvarez de Cienfuegos L; Blanco V; Ruedas-Rama MJ; Mazzeo G; Abbate S; Lucotti A; Tommasini M; Guisán-Ceinos S; Ribagorda M; et al. (Chemical communications (Cambridge, England), 2018)