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π‐Expanded Borazine: An Ambipolar Conjugated B–π–N Macrocycle
Author(s) -
Chen Pangkuan,
Lalancette Roger A.,
Jäkle Frieder
Publication year - 2012
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.201203788
Subject(s) - ambipolar diffusion , conjugated system , solvatochromism , acceptor , chemistry , luminescence , ion , crystallography , photochemistry , stereochemistry , materials science , organic chemistry , molecule , physics , optoelectronics , polymer , condensed matter physics , plasma , quantum mechanics
Staying at a B ′N′ B : A highly symmetric cyclic structure in which N donor and B acceptor sites are alternating (see picture) is found for the first ambipolar π‐conjugated B–N macrocycle. The donor–π–acceptor arrangement results in mutual interactions between B and N and a pronounced solvatochromic effect on the emission. The strong luminescence in solution also lends itself to use in anion recognition.