A symmetrical azo-based fluorophore and the derived salen multipurpose framework for emissive layers

Rosita Diana, Barbara Panunzi, Rafi Shikler, Shiran Nabha, Ugo Caruso

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

The development of new organic simple and low-cost fluorophores is a current topic. To date innovative solutions include azo dyes because of the unique absorption behavior, but the azo group gives poor luminophores in the solid state. In order to produce a luminescent azo dye, we synthesized compound A2, 4,4′-((1,1′)-(2,5-dimethoxy-1,4-phenylene)bis(diazene-2,1-diyl))dianiline, and its symmetrical Schiff-base derivative C2. The new compound C2 is a weakly luminescent fluorophore in the crystalline phase and when employed as building blocks in self-assembly of zinc (II) coordination polymer. Nevertheless, if used as a dopant in PS and PVK, C2 shows enhanced fluorescence and represents a good on-off naked-eye switch when dispersed in a room-temperature nematic polymer.

Original languageEnglish
Pages (from-to)186-189
Number of pages4
JournalInorganic Chemistry Communication
Volume104
DOIs
StatePublished - 1 Jun 2019

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