特殊なカイロプティック特性を有する分子スイッチの二重調節
Zhi Yuan Wang1, Erin K Todd, Xian Sheng Meng
1Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, Canada K1S 5B6. wangw@ccs.carleton.ca
Journal of the American Chemical Society
|August 18, 2005
まとめ
研究者らは,高光学活性を持つ二重モード分子スイッチを開発した. このスイッチは,光と電場の両方に反応し,高度な分子装置とセンサーを可能にします.
科学分野:
- 分子化学は分子化学である.
- マテリアルサイエンス 材料科学
- オプトエレクトロニクス (光電子機器)
背景:
- 光学的に活性な分子のキロプティックな性質は,外部刺激によって調節することができます.
- この調節は,分子スイッチ,メモリ装置,センサー,光子装置の開発の鍵です.
研究 の 目的:
- デュアルモードのカイロプティカル分子スイッチを設計・開発する.
- 先進的な応用のために,光と電気的刺激の両方に分子の反応を調査する.
主な方法:
- 光反応性アゾベンゼンと電動性イミド基を併用した螺旋形オテルフェニル化合物の合成.
- フォトアイソメリゼーション (UV/可視光) と電気化学的リドックス反応によるカイロプティック特性の調節.
主要な成果:
- 設計された分子は例外的な光学活性 ([alpha]436 = -9500) を表しています.
- カイロプティカル特性の可逆調節は,光と電気バイアスの両方を使用して達成されました.
- 大量のカイロプティカル・リーアウト・シグナル (モラー円度285,000°cm2.dmol-1まで) が観測されました.
結論:
- 開発されたキラル分子は,デュアルモード分子スイッチとして機能します.
- その高い光学活性と,光と電場への反応性により,高度な分子スイッチ,センサー,光学装置に適しています.
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