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meso, meso ‐Linked Porphyrin Arrays
Author(s) -
Osuka Atsuhiro,
Shimidzu Hitoshi
Publication year - 1997
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199701351
Subject(s) - porphyrin , trimer , chromophore , tetramer , dimer , photochemistry , coupling (piping) , oxidative coupling of methane , perpendicular , chemistry , crystallography , materials science , organic chemistry , catalysis , geometry , mathematics , metallurgy , enzyme
The perpendicular arrangement of porphyrin units in dimer 1 is reflected in a large excitonic coupling that leads to splitting of the Soret bands and only modest spectral changes in the Q‐bands. Compound 1 and the analogous trimer and tetramer are prepared by oxidative coupling of the corresponding 5,15‐diarylporphyrin and are the first examples of compounds having direct meso, meso ‐linked porphyrin chromophores. Ar = 3,5‐ t Bu 2 C 6 H 3 .
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