title: Imine formation as a simple reaction to construct copper-reactive cruciform fluorophores.
abstract: We developed a series of new conjugated cruciform fluorophores (XF) featuring imine groups. The condensation of an XF containing aldehyde functionalities and selected primary amines leads to several XF-imine derivatives. Upon addition of Cu(2+) or Zn(2+) ions to solutions of the imine XFs in different solvents, a red-shifted emission is detected, resulting in an altered emission color. The imine acts as a simple modular metallo-reactive fluorophore.
authors.affiliation: Organisch Chemisches Institut, Ruprecht Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany.
authors.forename: Thimon
authors.initials: T
authors.lastname: Schwaebel
authors.forename: Vera
authors.initials: V
authors.lastname: Schäfer
authors.forename: Jan
authors.initials: J
authors.lastname: Wenz
authors.forename: Benjamin A
authors.initials: BA
authors.lastname: Coombs
authors.forename: Juan
authors.initials: J
authors.lastname: Tolosa
authors.forename: Uwe H F
authors.initials: UH
authors.lastname: Bunz