Towards Incorporation in Larger Architectures: A Polymeric Halogen Bond‐Based Iridium Sensor

Abstract

In this study we report the synthesis and characterization of a ’click‐able’ iridium(III) complex as halogen bond‐based anion sensor. The functionalization is exemplarily demonstrated by the attachment of poly(ethylene glycol) azide via a copper‐click‐reaction. Subsequently, the polymeric XB donor complex is characterized in depth with 1H NMR spectroscopy, size exclusion chromatography and MALDI‐ToF‐MS. Moreover, the anion binding capabilities are demonstrated with emission titrations revealing strong anion complexation. These findings emphasize the great potential of this approach to tune the complex's properties or include other functions like cation complexation sites to exploit cooperative effects by using polymeric substituents on the iridium complex.This article is protected by copyright. All rights reserved