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Using Hydrogen Bonds to Direct the Assembly of Crowded Aromatics
Author(s) -
Bushey Mark L.,
Nguyen ThucQuyen,
Zhang Wei,
Horoszewski Dana,
Nuckolls Colin
Publication year - 2004
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.200301678
Subject(s) - self assembly , monolayer , dispersity , polar , hydrogen bond , molecule , crystallography , materials science , rod , yield (engineering) , nanotechnology , chemistry , chemical physics , polymer chemistry , organic chemistry , physics , medicine , alternative medicine , pathology , astronomy , metallurgy
This Minireview details the design, synthesis, and self‐assembly of a new class of crowded aromatics that form columnar superstructures. The assembly of these subunits produces helical and polar stacks, whose assembly can be directed with electric fields. In concentrated solutions, these self‐assembled helical rods exhibit superhelical arrangements that reflect circularly polarized light at visible wavelengths. Depending on the side chains employed, spin‐cast films yield either polar monolayers or isolated strands of molecules that can be visualized with scanning probe microscopy. Also detailed herein are methods to link these mesogens together to produce monodisperse oligomers that fold into defined secondary conformations.