Photoinduced Potential Change by Crowned Triphenylmethane Dye Derivatives in Poly(vinyl chloride)-Based Liquid Membranes

ABSTRACT Photoirradiation effect on potential response to sodium ion concentrations and photoinduced potential change were investigated with plasticized poly(vinyl chloride) membranes based on triphenylmethane dye derivatives carrying a bis(monoaza-15-crown-5) moiety and a tris(monoaza-15-crown-5) moiety. A drastic photoinduced switching in potential response to sodium ion concentrations was realized by membranes containing crowned triphenylmethane dye derivatives. The photoinduced potential change was affected by complexing species such as a multinuclear complex.