Journal
PURE AND APPLIED CHEMISTRY
Volume 83, Issue 1, Pages 189-199Publisher
WALTER DE GRUYTER GMBH
DOI: 10.1351/PAC-CON-10-09-34
Keywords
anion receptors; cations; pi-conjugated molecules; host-guest chemistry; supramolecular assemblies
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Funding
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) [17750137, 19750122, 21750155, 18039038, 19022036, 22108533]
- Izumi Science and Technology Foundation
- Iketani Science Technology Foundation
- Mitsubishi Chemical Corporation
- Kumagai Foundation for Science and Technology
- Nissan Science Foundation
- Saneyoshi Scholarship Foundation
- Japan Securities Scholarship Foundation
- Science and Technology Foundation of Japan
- Shorai Foundation for Science and Technology
- Kao Foundation for Arts and Sciences
- Kurata Grants
- Ritsumeikan Global Innovation Research Organization (R-GIRO)
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This critical overview proposes a new concept, a charge-by-charge assembly, which consists of alternately stacked positively and negatively charged species, by introducing examples of planar anionic structures in the solid state. The preparation of planar organic anions is not easy; however, complexation of planar anion receptor molecules with inorganic anions is found to be an efficient strategy for constructing them. As suitable motifs, dipyrrolyldiketone boron complexes exhibit various receptor-anion complexes and charge-by-charge assemblies in the solid state. The concept discussed here can be applied to useful soft materials as well as crystals by modifying the anion receptors and cations.
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