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Phosphonium‐ and Borate‐Bridged Zwitterionic Ladder Stilbene and Its Extended Analogues
Author(s) -
Fukazawa Aiko,
Yamada Hiroshi,
Yamaguchi Shigehiro
Publication year - 2008
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.200801834
Subject(s) - phosphonium , moiety , diphenylacetylene , bridging (networking) , chemistry , conjugated system , molecule , boron , redox , polymer chemistry , photochemistry , fluorescence , stereochemistry , organic chemistry , polymer , computer network , physics , quantum mechanics , computer science , catalysis
A rung up : A polar and rigid stilbene with phosphonium and borate bridging moieties was synthesized by the spontaneous cyclization of a boryl‐ and phosphanyl‐substituted diphenylacetylene (see picture). Various extended ladder π‐conjugated molecules can be synthesized in this manner. The zwitterionic moiety significantly modulates the electronic structure, thus leading to attractive fluorescence and redox properties.