チラル・アット・メタル・フォスフォレスント・スクエア・プラナー Pt (II) - アキラル・オルガノメタリック・リガンドからの複合体
Thorben R Schulte1, Julian J Holstein1, Lennard Krause2
1Department of Chemistry and Chemical Biology, TU Dortmund University , Otto-Hahn-Straße 6, 44227 Dortmund, Germany.
Journal of the American Chemical Society
|May 9, 2017
まとめ
研究者はC^N-ドナーリガンドを使用してキラルプラチナ (II) コンプレクスを合成した. これらの複合体は,光学および発光材料の潜在性を示す,光および強力な円形の二重化 (CD) と円形の偏光 (CPL) の効果を示している.
科学分野:
- 有機金属化学
- 材料科学
背景:
- 平方平面プラチナ (II) 複合体は,触媒と材料科学において重要である.
- 金属複合体のキラリティは,ユニークな光物理的性質をもたらすことができます.
研究 の 目的:
- 新規のシス・およびトランス・サイクロメタラテッドの正方形平面プラチナを合成し,特徴づけること.
- これらの複合体の光学および発光特性を調査する.
主な方法:
- C^Nドナーリガンドによる有機金属化合物の合成.
- NMRスペクトロスコーピー,質量スペクトロメトリー,X線微分を用いた特徴付け.
- 光物理学的研究には,光,円形の二極化 (CD),円形の偏光 (CPL) の測定が含まれています.
- TD-DFTを用いた理論的計算
主要な成果:
- 無電荷のプラチナ (II) 複合体をC^N-ドナーリガンドで合成した.
- プラチナ中心がステレオ中心で,複合体はキラルであることを示した.
- トランス-[PtL^CN_2]のエナティオマーを分離し,その絶対的構成を決定した.
- 溶液と固体状態で観測された光は,適度な量子収量を持つ.
- エナンティオマーに対する強いCDとCPL効果が報告された.
結論:
- サイクロメタル化プラチナ (II) 複合体の新しい構造モチーフはキラルであり,興味深い光物理的性質を示している.
- 観察された強力なCDおよびCPL効果は,これらの複合体をカイロプティカルおよび発光材料のアプリケーションに有望にします.
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