First decade of π-electronic ion-pairing assemblies
Yohei Haketa,Kazuki Urakawa,Hiromitsu Maeda +2 more
- 11 May 2020
- Vol. 5, Iss: 4, pp 757-771
TL;DR: Ion-pairing assemblies consisting of appropriately designed charged π-electronic species afford various functional supramolecular assemblies, including crystals and soft materials; they are formed by the anisotropic arrangement of charged particles through electrostatic and other weak noncovalent interactions as discussed by the authors.
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Abstract: Ion-pairing assemblies consisting of appropriately designed charged π-electronic species afford various functional supramolecular assemblies, including crystals and soft materials; they are formed by the anisotropic arrangement of charged π-electronic species through electrostatic and other weak noncovalent interactions. The design, synthesis and combination of charged π-electronic species (ion-pair formation) are crucial for the preparation of functional dimension-controlled assemblies. This article includes the prologue and progress of ion-pairing assemblies comprising π-electronic ions. Synthesis of π-electronic ions, preparation of ion pairs, fabrication of assemblies as crystals, gels and liquid crystals and their characteristic properties are summarized.
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Citations
Excited-state dynamics of dipyrrolyldiketone difluoroboron complexes.
Hajime Okajima,Shinya Sugiura,Yohei Haketa,Yusuke Kinoshita,Hitoshi Tamiaki,Akira Sakamoto,Hiromitsu Maeda,Yoichi Kobayashi +7 more
TL;DR: This study investigated the excited-state dynamics of an aryl-substituted dipyrrolyldiketone difluoroboron complex, a π-conjugated anion receptor, by time-resolved visible and infrared absorption spectroscopy and emission decay measurements combined with quantum chemical calculations.
1
Photoresponsive ion‐pairing assemblies
Yohei Haketa,Rima Sengupta,Hiromitsu Maeda +2 more
TL;DR: Photoresponsive ion-pairing assemblies involve the design and synthesis of charged π-electronic systems and their association with counterions. These assemblies exhibit photoresponsive behaviors such as phase transitions and photoinduced electron transfer.
Enhanced solid-state phosphorescence of organoplatinum π-systems by ion-pairing assembly
Hiromitsu Maeda,Yohei Haketa,Kaifu Komatsu,Hiroi Sei,Hiroki Imoba,Wataru Ota,Tohru Sato,Yu Murakami,Hiroki Tanaka,Nobuhiro Yasuda,Norimitsu Tonai +10 more
TL;DR: Ion-pairing assembly of organoplatinum π-systems with anions enhances their solid-state phosphorescence.
Triazatriangulenium salts – hosts and guests in supramolecular assemblies in solution
Sayan Sarkar,Michael Böck,Agnes Uhl,Alexander Agafontsev,Jürgen Schatz,Evgeny Kataev +5 more
TL;DR: Triazatriangulenium salts self-assemble in solution, forming supramolecular assemblies. The aggregation behavior is influenced by the length of the alkyl chains on the dyes.
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