周囲の温度でイリジウム (III) コーロルの近赤外線フォスフォレッセンスを観測する
Joshua H Palmer1, Alec C Durrell, Zeev Gross
1Beckman Institute, California Institute of Technology, Pasadena, California 91125, USA.
Journal of the American Chemical Society
|June 24, 2010
まとめ
イリジウム (III) コーロルは,室温で長波長フォスフォレッセンスを含むユニークな光物理的特性を有しています. 彼らの興奮状態は,基本状態よりもかなり極性であり,他の発光イリジウム化合物とは異なる.
科学分野:
- 協調化化学について
- フォトフィジックスの光学
- マテリアルサイエンス 材料科学
背景:
- イリジウム (III) 複合体は,その発光特性のために広く研究されています.
- コロールリンガンドは,ポルフィリンと比べてユニークな調整環境を提供します.
- 興奮状態の性質を理解することは,新しいリン酸化物を開発する上で極めて重要です.
研究 の 目的:
- イリジウム (III) コーロルの独特の光物理学的特性を調査する.
- 他の既知のイリジウムリンと発光金属コロロールとの性質を比較するために.
- Ir (III) コロルの電子構造と興奮状態の振る舞いを解明する.
主な方法:
- イリジウム (III) コーロール複合体のスペクトル解析.
- 室温での光発光測定. 室温での光発光測定.
- 吸収帯のソルバトクロミック研究 (ソレットとQ).
主要な成果:
- イリジウム (III) コロールの光は800nm以上で観測され,ほとんどのイリジウム (III) 光よりも長い.
- 光ポルフィリンや他のIr (III) 化合物と比較して,独特の光物理的性質を有する.
- ソルバトクロミックシフトは,基底状態と比較して,最も低いシングレット興奮状態 (S(2),S(1) の極性が大幅に高いことを示しています.
結論:
- イリジウム (III) コーロルは,独特の光物理的行動,特に赤色移転の光性を有する.
- 電子構造は,極性が増加した興奮状態につながります.
- これらの発見は,他の発光性イリジウム複合体からIr(III) コロルを区別する.
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