Premium
A Directly Fused Subporphyrin Dimer with a Wavelike Structure
Author(s) -
Okuda Yasuhiro,
Tsurumaki Eiji,
Oh Juwon,
Sung Jooyoung,
Kim Dongho,
Osuka Atsuhiro
Publication year - 2016
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201603759
Subject(s) - dimer , delocalized electron , intramolecular force , chemistry , photochemistry , redox , absorption spectroscopy , absorption (acoustics) , homo/lumo , crystallography , materials science , stereochemistry , molecule , physics , inorganic chemistry , organic chemistry , optics , composite material
[Ni(cod) 2 ]‐mediated intramolecular reductive coupling of β–β′ linked meso,meso′‐dibromosubporphyrin dimer gave the anti ‐isomer of meso–meso′, β–β′ doubly linked subporphyrin dimer as the first example of a fused subporphyrin dimer. The fused dimer 3 anti displays an wavelike coplanar structure, a perturbed and red‐shifted absorption spectrum, reversible redox behaviors with a decreased electrochemical HOMO–LUMO band gap, and a short S 1 ‐state lifetime owing to the delocalized π‐electronic network.