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Updated: May 2, 2026

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
Published on: March 24, 2018
A rhomboid-shaped organic host molecule with small binding space. Unsymmetrical and symmetrical inclusion of halonium
Yuji Suzaki1, Takashi Saito, Tomohito Ide
1Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midoriku, Yokohama 226-8503, Japan. kosakada@res.titech.ac.jp.
Abstract:
A shape persistent rhomboid-shaped organic host molecule having two pyridyl units was synthesized which induces size selective halonium inclusion. Cl(+) and Br(+) are included to form unsymmetric and symmetric complexes, while I(+) does not form a stable complex. The difference among the haloniums was ascribed to the matching (or mismatching) of the shape of the cavity and the guest ions. The complexation of the host molecule with other cations, such as Ag(+), Pd(2+), Zn(2+) and H(+), is also mentioned.
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