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Pronounced Supramolecular Order in Discotic Donor–Acceptor Mixtures
Author(s) -
Pisula Wojciech,
Kastler Marcel,
Wasserfallen Daniel,
Robertson Joseph W. F.,
Nolde Fabian,
Kohl Christopher,
Müllen Klaus
Publication year - 2006
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.200500669
Subject(s) - supramolecular chemistry , discotic liquid crystal , acceptor , chemistry , order (exchange) , photochemistry , organic chemistry , molecule , physics , condensed matter physics , finance , economics
Mixing a hexa‐ peri ‐hexabenzocoronene (HBC) derivative and a perylene‐ or terrylenediimide results in the formation of complex helical arrangements in the columnar superstructures. Weak donor–acceptor interactions between the electron‐rich HBC and the electron‐poor rylene dye lead to strictly alternating and long‐range‐ordered stacks. The mixtures display homeotropic orientation on surfaces (picture shows an image from an optical microscope).