1. A Directly Fused Subporphyrin Dimer with a Wavelike Structure
- Author
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Dongho Kim, Juwon Oh, Yasuhiro Okuda, Eiji Tsurumaki, Jooyoung Sung, and Atsuhiro Osuka
- Subjects
Absorption spectroscopy ,Chemistry ,Band gap ,010405 organic chemistry ,Dimer ,chemistry.chemical_element ,General Chemistry ,General Medicine ,Electrochemistry ,010402 general chemistry ,01 natural sciences ,Catalysis ,0104 chemical sciences ,Crystallography ,chemistry.chemical_compound ,Delocalized electron ,Intramolecular force ,X-ray crystallography ,Iridium - Abstract
[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 3anti 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 S1 -state lifetime owing to the delocalized π-electronic network.
- Published
- 2016