Publications by authors named "Robin Kampes"

Article Synopsis
  • A new luminescent Ir(III) complex has been developed with a bidentate halogen bond donor site that effectively binds anions like chloride, bromide, and acetate.
  • This complex shows a higher emission quantum yield of 8.4%, outperforming previous Ir(III)-based sensors which had yields around 2.5%.
  • The study introduces a novel method for calculating association constants based on emission shift, supported by quantum chemical simulations, revealing strong binding capabilities with constants up to 1.6×10 M.
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The halogen bond is a special non-covalent interaction, which can represent a powerful tool in supramolecular chemistry. Although the halogen bond offers several advantages compared to the related hydrogen bond, it is currently still underrepresented in polymer science. The structural related hydrogen bonding assumes a leading position in polymer materials containing supramolecular interactions, clearly indicating the high potential of using halogen bonding for the design of polymeric materials.

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An anion sensor is presented that combines a bidentate hydrogen- (HB) or halogen-bonding (XB) site with a luminescent monocationic Ir fragment for strong binding of common anions (K up to 6×10  m ) with diagnostic emission changes. A new emission-based protocol for fast and reliable detection was derived on the basis of correction for systematic but unspecific background effects. Such a simple correction routine circumvents the hitherto practical limitations of systematic emission-based analysis of anion binding with validated open-source software (BindFit).

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