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April 19, 2026Angewandte ChemieOpen Access

Boron‐Doping of a Macrocyclic Tetrafuran Framework Unveils an Expanded Porphyrinoid With Switchable (Anti)Aromaticity and Conformational Dynamics

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Authors

LSLukas SwobodaJKJonas KlopfJBJonas Bachmann

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Overview

Research unveils an expanded porphyrinoid with tunable (anti)aromaticity and dynamic conformations, indicating new material potentials.

Key Points

  • The aim is to investigate the effects of boron-doping on the electronic properties of an expanded porphyrinoid framework.
  • Synthesis of diboratetraoxaporphyrin(2.1.2.1) and its potassium salt dianion K2[1E].
  • Characterization of electronic structure through spectroscopic analysis.
  • Comparison of porphyrinoid properties with thiophene-based analogs.
  • Diborate macrocycle 1E shows pronounced magnetically antiaromatic features compared to its thiophene variant.
  • The dianion [1E]2− transitions to a strongly aromatic state.
  • Porphyrinoid 1E displays conformational flexibility, which is lost in its potassium salt K2[1E].
  • K2[1E] has distinct absorption bands in the blue, red, and NIR regions with significant photoluminescence at 1032 nm.

Cite This Study

Swoboda et al. (2026) studied this question.

synapsesocial.com/papers/69e472a8010ef96374d8eadehttps://doi.org/10.1002/ange.6586543
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