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April 13, 2026Angewandte Chemie

π‐Enlargement in Porphyrin Macrocycles at Interfaces

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Authors

ABAna BarragánEPElena Pérez‐ElviraAGAlba García‐Frutos

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Overview

Demonstrates a unique expansion of porphyrin macrocycles at interfaces, suggesting new engineering possibilities.

Key Points

  • This research aims to explore the expansion of porphyrin macrocycles at interfaces to create novel properties.
  • Employs on-surface covalent synthesis to modify porphyrin structures.
  • Utilizes deposition of porphyrin precursors with trifluoromethyl groups onto a hot Ag(111) surface.
  • Confirms transformations using scanning probe microscopy, spectroscopy, and density-functional theory calculations.
  • Successfully forms a 20-π free-base expanded porphyrin with potential high antiaromaticity.
  • Achieves a narrow bandgap of approximately 0.2 eV in the expanded structure.
  • Demonstrates unique coordinative capabilities toward cobalt, forming a two-fold coordination node.

Cite This Study

Barragán et al. (2026) studied this question.

synapsesocial.com/papers/69dc887f3afacbeac03ea523https://doi.org/10.1002/ange.202525787
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1π‐Enlargement in Porphyrin Macrocycles at Interfaces2026 · 2 citations
  2. 2Outside Front Cover: π‐Enlargement in Porphyrin Macrocycles at Interfaces2026
  3. 3Boron‐Doping of a Macrocyclic Tetrafuran Framework Unveils an Expanded Porphyrinoid With Switchable (Anti)Aromaticity and Conformational Dynamics2026
  4. 4Boron‐Doping of a Macrocyclic Tetrafuran Framework Unveils an Expanded Porphyrinoid With Switchable (Anti)Aromaticity and Conformational Dynamics2026 · 1 citations
  5. 5Bending the Macrocycle: A Deep Dive into Curved Porphyrinoids2026