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Synthesis of Doubly β‐to‐β 1,3‐Butadiyne‐Bridged Diporphyrins: Enforced Planar Structures and Large Two‐Photon Absorption Cross Sections
Author(s) -
Hisaki Ichiro,
Hiroto Satoru,
Kim Kil Suk,
Noh Su Bum,
Kim Dongho,
Shinokubo Hiroshi,
Osuka Atsuhiro
Publication year - 2007
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.200700550
Subject(s) - planar , absorption (acoustics) , plane (geometry) , two photon absorption , cross section (physics) , photon , physics , section (typography) , simple (philosophy) , crystallography , chemistry , computer science , optics , geometry , quantum mechanics , mathematics , computer graphics (images) , philosophy , laser , epistemology , operating system
Plane and simple! Doubly β‐to‐β 1,3‐butadiyne‐bridged diporphyrins have been synthesized efficiently through metal‐catalyzed reactions. The double bridges enforce the two porphyrins in a perfectly planar conformation (see picture), which leads to almost a 100 % increase in the two‐photon absorption cross section.