2 research outputs found
Anion-controlled foldamers
This tutorial review provides a summary of anion-mediated folding of linear and cyclic oligomers
as well as anion-responsive behaviours of related polymeric architectures. Anions have emerged as
a significant focus of the supramolecular community and here we review their impact on directing
the secondary structures of synthetic oligomers and polymers while modulating physical
properties e.g. molecular recognition. Oligomers and polymers responsive to anionic guests are
typically constructed with hydrogen bond donors complementary to the target anions. Anion
binding within the cavities leads to folding and helical wrapping of linear and cyclic oligomers as
well as control over macromolecular properties of polymers. This review covers the impact of
anion binding on guiding the secondary structures of single-stranded folded oligomers (foldamers)
and cyclic oligomers (macrocycles), and on modulating the physical properties of select polymer
architectures
Selective sulfate binding induces helical folding of an indolocarbazole oligomer in solution and solid state
Hydrogen bonding to anions drives the helical folding of an indolocarbazole oligomer, thus resulting in an internal cavity with six NHs and two OHs for binding sulfate with high selectivity.close585