需要に応じてエネルギー転送:金属・ポルフィリン・フレームワークのフォトスイッチ指向行動
Derek E Williams1, Joseph A Rietman, Josef M Maier
1Department of Chemistry and Biochemistry, University of South Carolina , Columbia, South Carolina 29208, United States.
Journal of the American Chemical Society
|August 14, 2014
まとめ
この研究では,ポルフィリンフレームワークの光集積特性を制御する光色ダイアリレチンの誘導体を実証しました. そのフォトスイッチングは光性を変化させ,大きな集合体で光に誘導された染色体の振る舞いを可能にします.
科学分野:
- 材料科学 材料科学とは
- フォトケミストリー フォトケミストリー
- 超分子化学 超分子化学
背景:
- ダイアリエーテンの誘導体は,光色特性を有する.
- ポルフィリン製のフレームワークは,光を集めるアプリケーションで使用されます.
- 拡張されたフレームワークでの光物理学的性質の制御は,挑戦的です.
研究 の 目的:
- ポルフィリン・フレームワーク内のダイアリレチンの光色反応を調査する.
- ホストの光物理的特性に対する光イソメリゼーションの影響を調査する.
- 光を集める集合体における光誘導染色体行動の可能性を評価する.
主な方法:
- フォトクロミックなダイアリレチンを基にした微生物の合成.
- テトラキス (((4-カルボキシフェニル)) ポルフィリン (H4TCPP) フレームワーク内のZn (((2+) イオンを使用した誘導体の調整.
- 時間の解像度による光輝度測定を含む光物理学的特徴付け.
主要な成果:
- 固定されたダイアリエーテンの誘導体は,そのフォトスイッチ可能な振る舞いを維持した.
- ポルフィリン-BPMTC配列の放出特性は,入射光によって変化した.
- ポーフィリン放出寿命の減少は,BPMTC光異性化によるエネルギー転送 (ET) の活性化を示しています.
結論:
- フォトクロミック・ダイアリレチン・リガンドは,ポルフィリン・フレームワークの光物理的性質を効果的に制御することができる.
- エネルギー伝達経路は,BPMTC光異性化によって活性化され,周期的な光につながります.
- このアプローチは,光反応性光採集システムの開発に希望を示しています.
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