Magneto-LC Effects in Hydrogen-Bonded All-Organic Radical Liquid Crystal

详细信息    查看全文

• 作者：Yoshiaki Uchida ; Katsuaki Suzuki ; Rui Tamura
• 刊名：The Journal of Physical Chemistry B
• 出版年：2012
• 出版时间：August 16, 2012
• 年：2012
• 卷：116
• 期：32
• 页码：9791-9795
• 全文大小：274K
• 年卷期：v.116,no.32(August 16, 2012)
• ISSN：1520-5207

文摘

To identify the origin of the magneto-LC effects, which refer to the enhancement of intermolecular magnetic interactions in the LC phases of all-organic radical compounds, we have designed and synthesized H-bonded all-organic radical compounds showing nematic and cholesteric phases for the first time. They show stronger magneto-LC effects than in the same LC phases of analogous covalent-bonded all-organic radical LC compounds. Variable-temperature electron paramagnetic resonance spectroscopy of the hydrogen-bonded compounds reveals that the inhomogeneous intermolecular contacts give rise to the magneto-LC effects.