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Zwitterionic Ladder Bis(arylethenyl)benzenes with Large Two‐Photon Absorption Cross Sections
Author(s) -
Fukazawa Aiko,
Yamada Hiroshi,
Sasaki Yutaka,
Akiyama Seiji,
Yamaguchi Shigehiro
Publication year - 2010
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.200900517
Subject(s) - phosphonium , two photon absorption , absorption (acoustics) , conjugated system , bridge (graph theory) , photochemistry , materials science , chemistry , polymer chemistry , physics , organic chemistry , optics , polymer , laser , medicine , composite material
A bridge worth crossing : Various phosphonium‐ and borate‐bridged bis(arylethenyl)benzenes were synthesized. The large two‐photon absorption (TPA) cross sections in these zwitterionic ladder π‐electron systems revealed that the introduction of zwitterionic bridges in the coplanar π‐conjugated framework is a powerful strategy for designing excellent TPA materials.