Photo‐Responsive Soft Ionic Crystals: Ion‐Pairing Assemblies of Azobenzene Carboxylates
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- Ryohei Yamakado
- Department of Applied Chemistry College of Life Sciences Ritsumeikan University Kusatsu 525-8577 Japan
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- Mitsuo Hara
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Nagoya 464-8603 Japan
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- Shusaku Nagano
- Nagoya University Venture Business Laboratory Nagoya 464-8603 Japan
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- Takahiro Seki
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Nagoya 464-8603 Japan
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- Hiromitsu Maeda
- Department of Applied Chemistry College of Life Sciences Ritsumeikan University Kusatsu 525-8577 Japan
書誌事項
- 公開日
- 2017-06-21
- 資源種別
- journal article
- 権利情報
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- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
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- 10.1002/chem.201701925
- 公開者
- Wiley
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説明
<jats:title>Abstract</jats:title><jats:p>This report delineates the design and synthesis of negatively charged azobenzene derivatives that form photo‐responsive ion‐pairing assemblies. The azobenzene carboxylates possessing aliphatic chains were prepared as photo‐responsive anions that promote the formation of ion‐pairing dimension‐controlled assemblies, including mesophases, when used in conjunction with a tetrabutylammonium (TBA) cation. The photo‐responsive properties of the ion pairs and the precursory carboxylic acids in the bulk state were examined by polarized optical microscopy (POM) and X‐ray diffraction (XRD), demonstrating that liquid crystal (LC)–liquid and crystal–liquid phase transitions occurred, depending on the number and lengths of the aliphatic chains of each assembly. An ion pair exhibited photo‐induced crystal–crystal phase transitions upon switching between two irradiation wavelengths (365/436 nm).</jats:p>
収録刊行物
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- Chemistry – A European Journal
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Chemistry – A European Journal 23 (39), 9244-9248, 2017-06-21
Wiley