From local to global or semilocal aromaticity: singlet–triplet switching in porphyrin tapes

Sergio Moles Quintero; Luis Álvarez-Thon; William Tiznado; Luis Leyva-Parra; Mercedes Alonso

doi:10.1039/d5cc06229b

From local to global or semilocal aromaticity: singlet–triplet switching in porphyrin tapes

Sergio Moles Quintero
, Luis Álvarez-Thon
, William Tiznado
, Luis Leyva-Parra
, Mercedes Alonso

Vrije Universiteit Brussel
Universidad Andres Bello

Research output: Contribution to journal › Article › peer-review

Abstract

Magnetic and electronic analyses of porphyrin tapes uncover a transition from local aromaticity in the ground state to extended/semilocal aromaticity in the triplet state. This reorganization reduces the singlet–triplet gap, establishing porphyrin tapes as aromatic chameleons with state-dependent electronic structures and magnetic responses.

Original language	English
Pages (from-to)	6604-6607
Number of pages	4
Journal	Chemical Communications
Volume	62
Issue number	24
DOIs	https://doi.org/10.1039/d5cc06229b
State	Published - 26 Mar 2026

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title = "From local to global or semilocal aromaticity: singlet–triplet switching in porphyrin tapes",

abstract = "Magnetic and electronic analyses of porphyrin tapes uncover a transition from local aromaticity in the ground state to extended/semilocal aromaticity in the triplet state. This reorganization reduces the singlet–triplet gap, establishing porphyrin tapes as aromatic chameleons with state-dependent electronic structures and magnetic responses.",

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T2 - singlet–triplet switching in porphyrin tapes

AU - Quintero, Sergio Moles

AU - Álvarez-Thon, Luis

AU - Tiznado, William

AU - Leyva-Parra, Luis

AU - Alonso, Mercedes

PY - 2026/3/26

Y1 - 2026/3/26

N2 - Magnetic and electronic analyses of porphyrin tapes uncover a transition from local aromaticity in the ground state to extended/semilocal aromaticity in the triplet state. This reorganization reduces the singlet–triplet gap, establishing porphyrin tapes as aromatic chameleons with state-dependent electronic structures and magnetic responses.

AB - Magnetic and electronic analyses of porphyrin tapes uncover a transition from local aromaticity in the ground state to extended/semilocal aromaticity in the triplet state. This reorganization reduces the singlet–triplet gap, establishing porphyrin tapes as aromatic chameleons with state-dependent electronic structures and magnetic responses.

UR - https://www.scopus.com/pages/publications/105032230575

U2 - 10.1039/d5cc06229b

DO - 10.1039/d5cc06229b

M3 - Article

AN - SCOPUS:105032230575

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SP - 6604

EP - 6607

JO - Chemical Communications

JF - Chemical Communications

IS - 24

ER -

From local to global or semilocal aromaticity: singlet–triplet switching in porphyrin tapes

Abstract

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