オートゴーナル化学信号によって誘発されるシーケンス依存のゲスト放出
Ana M Castilla1, Tanya K Ronson1, Jonathan R Nitschke1
1Department of Chemistry, University of Cambridge , Lensfield Road, Cambridge CB2 1EW, United Kingdom.
Journal of the American Chemical Society
|January 23, 2016
まとめ
化学信号を用いて クロロフォームやサイクロヘクサンのような 誘発物質を 選択的に結合させ 放出する分子ケージを設計しました 一つのケージは特に核医学で重要なペルレナートを捕まえる.
科学分野:
- 超分子化学
- 協調化学
- 材料科学
背景:
- トリシミノピリジンリガンドはZn ((II)) 調整ケージに自己組み立てることができる.
- これらのケージは,選択的なゲスト結合と反応性を表すことができます.
- 化学信号による 分子ネットワークの制御は 重要な課題です
研究 の 目的:
- 反応性のある分子ネットワークを 設計する
- 選択的なゲストの封じ込めと連続的な解放を調査する
- アニオン認識の 可能性を探るため
主な方法:
- 3つのZn{II) 4L4調整ケージの合成と特徴付け
- クロロフォームとサイクロヘキサンによるゲスト封入試験
- トリス・2・アミノエチル・アミン (トレン) とペルヘナートのケージ行動への影響を調査する.
- 結合定数と選択性を決定するスペクトル分析.
主要な成果:
- クロロフォームとサイクロヘキサンを 選択的に封入した2つのケージ
- 化学信号としてトレンとペルヘナートを用いて,ゲストの連続的な放出が達成された.
- 第三のケージは,高い親和性を持つ選択的に結合されたペルヘナートで,インサイトで形成される (K ((a) > 10 ((7) M ((-1)).
- トレンのケージ混合物との反応性は,ペルヘナートの吸収と放出を制御した.
結論:
- 異なる化学信号に反応する 分子ネットワークが成功裏に設計されました
- 調整ケージは 調節可能なゲストの選択性と制御された放出能力を示す.
- ペルヘネートに対する高い親和性は,ペルテクネートとの類似性により,核医学における潜在的な応用を示唆する.
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