2,5‐Thienylene‐Bridged Triangular and Linear Porphyrin Trimers

A question of shape: Palladium‐catalyzed cross‐coupling of borylporphyrins has led to the synthesis of a β‐to‐β thienylene‐bridged porphyrin dimer and two types of trimer (see picture; gray C; white H, pink Ni, yellow S, blue N). The ladderlike trimer exhibits a very large two‐photon absorption cros...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2008-07, Vol.47 (32), p.6004-6007
Main Authors: Song, Jianxin, Jang, So Young, Yamaguchi, Shigeru, Sankar, Jeyaraman, Hiroto, Satoru, Aratani, Naoki, Shin, Jae‐Yoon, Easwaramoorthi, Shanmugam, Kim, Kil Suk, Kim, Dongho, Shinokubo, Hiroshi, Osuka, Atsuhiro
Format: Article
Language:English
Subjects:
Cross-Linking Reagents
cross‐coupling
Dimerization
macrocycles
Metalloporphyrins - chemistry
porphyrinoids
Sulfides - chemistry
thiophenes
two‐photon absorption
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Summary:A question of shape: Palladium‐catalyzed cross‐coupling of borylporphyrins has led to the synthesis of a β‐to‐β thienylene‐bridged porphyrin dimer and two types of trimer (see picture; gray C; white H, pink Ni, yellow S, blue N). The ladderlike trimer exhibits a very large two‐photon absorption cross‐section (17 300 GM) at 800 nm, while that of the triangular trimer is moderate in comparison (8600 GM).
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200802026