Bis ((tri-tert-butylsilyl) シリレン:トリプレート基底状態のシリレン
Akira Sekiguchi1, Takashi Tanaka, Masaaki Ichinohe
1Department of Chemistry, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan. sekiguch@staff.chem.tsukuba.ac.jp
Journal of the American Chemical Society
|April 24, 2003
まとめ
研究者らは,電子パラマグネティック共振 (EPR) スペクトロスコーピーを用いてビス・トリ・テート・ブチルシリル・シリレンを研究した. この研究は,光化学における反応性シリコン中間物質の理解に不可欠な三重基底状態を確認した.
科学分野:
- オーガノシリコン化学 化学
- フォトケミストリー フォトケミストリー
- スペクトル顕微鏡検査です.
背景:
- 反応性シリコン種は,合成化学において重要である.
- シリエレンの電子構造を理解することは,その反応性を制御する鍵となる.
- 電子パラマグネティック共振 (EPR) スペクトロスコピーは,パラマグネティックな種を特徴付けるための強力なツールです.
研究 の 目的:
- bis ((tri-tert-butylsilyl) シリレン.シリレン.シリレン.シリレン.シリレン.シリレン.シリレン.シリレン.シリレン.シリレン.シリレン.シリレン.シリレン.シリレン.シリコン.シリコン.シリコン.シリコン.シリコン.シリコン.シリコン.シリコン.シリコン.
- このシリレンが光化学的条件下での振る舞いを調査するために.
- スペクトロスコーピーのデータを製品分析と相関させるため.
主な方法:
- 前体1aおよび1bのメチルサイクロヘキサン溶液の光分解は254nmの光を用いて行われます.
- 電子パラマグネティック共振 (EPR) スペクトロスコピーの測定は9〜80Kの間で行われます.
- ディシラサイクロブタン派生体3およびダイヒドロシランを含む光分解産物の分析 4.
主要な成果:
- 845mTで特徴的なEPR信号が観測され,bis (((tri-tert-butylsilyl) シリレン (2) に起因している.
- 信号の強度は,9−80 Kの線形温度依存を示した.
- 製品分析は,シリレン2の三重基底状態の割り当てを裏付けました.
結論:
- Bis ((tri-tert-butylsilyl) シリレン (2) は三重の基本状態を有しています.
- 観測された EPR 信号と温度依存性は,トリプル状態と一致しています.
- シライレンの光化学的生成と特徴化は,それらの基本的な性質についての洞察を提供します.
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