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A meso – meso β‐β β‐β Triply Linked Subporphyrin Dimer
Author(s) -
Okuda Yasuhiro,
Fukui Norihito,
Kim Jinseok,
Kim Taeyeon,
Jiang HuaWei,
Copley Graeme,
Kitano Masaaki,
Kim Dongho,
Osuka Atsuhiro
Publication year - 2017
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201707123
Subject(s) - dimer , picosecond , absorption spectroscopy , absorption (acoustics) , chemistry , diffraction , homo/lumo , spectroscopy , crystallography , photochemistry , materials science , optics , molecule , physics , laser , organic chemistry , quantum mechanics , composite material
A meso–meso β‐β β‐β triply linked subporphyrin dimer 6 was synthesized by stepwise reductive elimination of β‐to‐β doubly Pt II ‐bridged subporphyrin dimer 9 . Dimer 6 was characterized by spectroscopic and electrochemical measurements, theoretical calculations, and picosecond time‐resolved transient absorption spectroscopy. X‐ray diffraction analysis reveals that 6 has a bowl‐shaped structure with a positive Gaussian curvature. Despite the curved structure, 6 exhibits a remarkably red‐shifted absorption band at 942 nm and a small electrochemical HOMO–LUMO gap (1.35 eV), indicating an effectively conjugated π‐electronic network.
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