Coordination-induced cofacial dimer formation of a phenanthroline-tethered porphyrin

Joe Otsuki; Ken Sato; Yuto Nakaie; Yosuke Hosoya; Kosuke Sugawa

doi:10.1093/chemle/upaf182

Coordination-induced cofacial dimer formation of a phenanthroline-tethered porphyrin

Joe Otsuki, Ken Sato, Yuto Nakaie, Yosuke Hosoya, Kosuke Sugawa

College of Science and Technology

Nihon University

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

Abstract

A zinc porphyrin bearing 4 1,10-phenanthroline units, ZnPor(phen)₄, forms cofacial dimers upon coordination with Zn²⁺ or Cu⁺ ions. Ultraviolet visible spectroscopy, electrospray ionization mass spectrometry, and ¹ H nuclear magnetic resonance ring-current analysis reveal dimers comprising 2 porphyrins linked by 4 tetrahedral M(phen)₂ complexes (M = Zn²⁺, Cu⁺). Compared with a bipyridine analog, the phenanthroline derivative exhibits higher stability, demonstrating that ligand rigidity and stronger metal–ligand binding enhance the robustness of coordination-induced porphyrin assemblies.

Original language	English
Article number	upaf182
Journal	Chemistry Letters
Volume	54
Issue number	10
DOIs	https://doi.org/10.1093/chemle/upaf182
Publication status	Published - 1 Oct 2025

Keywords

coordination
phenanthroline
porphyrin

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10.1093/chemle/upaf182

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title = "Coordination-induced cofacial dimer formation of a phenanthroline-tethered porphyrin",

abstract = "A zinc porphyrin bearing 4 1,10-phenanthroline units, ZnPor(phen)₄, forms cofacial dimers upon coordination with Zn²⁺ or Cu⁺ ions. Ultraviolet visible spectroscopy, electrospray ionization mass spectrometry, and 1 H nuclear magnetic resonance ring-current analysis reveal dimers comprising 2 porphyrins linked by 4 tetrahedral M(phen)₂ complexes (M = Zn²⁺, Cu⁺). Compared with a bipyridine analog, the phenanthroline derivative exhibits higher stability, demonstrating that ligand rigidity and stronger metal–ligand binding enhance the robustness of coordination-induced porphyrin assemblies.",

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author = "Joe Otsuki and Ken Sato and Yuto Nakaie and Yosuke Hosoya and Kosuke Sugawa",

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T1 - Coordination-induced cofacial dimer formation of a phenanthroline-tethered porphyrin

AU - Otsuki, Joe

AU - Sato, Ken

AU - Nakaie, Yuto

AU - Hosoya, Yosuke

AU - Sugawa, Kosuke

N1 - Publisher Copyright: © The Author(s) 2025. Published by Oxford University Press on behalf of the Chemical Society of Japan.

PY - 2025/10/1

Y1 - 2025/10/1

N2 - A zinc porphyrin bearing 4 1,10-phenanthroline units, ZnPor(phen)₄, forms cofacial dimers upon coordination with Zn²⁺ or Cu⁺ ions. Ultraviolet visible spectroscopy, electrospray ionization mass spectrometry, and 1 H nuclear magnetic resonance ring-current analysis reveal dimers comprising 2 porphyrins linked by 4 tetrahedral M(phen)₂ complexes (M = Zn²⁺, Cu⁺). Compared with a bipyridine analog, the phenanthroline derivative exhibits higher stability, demonstrating that ligand rigidity and stronger metal–ligand binding enhance the robustness of coordination-induced porphyrin assemblies.

AB - A zinc porphyrin bearing 4 1,10-phenanthroline units, ZnPor(phen)₄, forms cofacial dimers upon coordination with Zn²⁺ or Cu⁺ ions. Ultraviolet visible spectroscopy, electrospray ionization mass spectrometry, and 1 H nuclear magnetic resonance ring-current analysis reveal dimers comprising 2 porphyrins linked by 4 tetrahedral M(phen)₂ complexes (M = Zn²⁺, Cu⁺). Compared with a bipyridine analog, the phenanthroline derivative exhibits higher stability, demonstrating that ligand rigidity and stronger metal–ligand binding enhance the robustness of coordination-induced porphyrin assemblies.

KW - coordination

KW - phenanthroline

KW - porphyrin

UR - https://www.scopus.com/pages/publications/105018882050

U2 - 10.1093/chemle/upaf182

DO - 10.1093/chemle/upaf182

M3 - Article

AN - SCOPUS:105018882050

SN - 0366-7022

VL - 54

JO - Chemistry Letters

JF - Chemistry Letters

IS - 10

M1 - upaf182

ER -

Coordination-induced cofacial dimer formation of a phenanthroline-tethered porphyrin

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Keywords

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