ローカライゼーション対デロカライゼーション 黄金ビソチオレン複合体のキラル単一コンポーネント導体
Diana G Branzea1, Flavia Pop1, Pascale Auban-Senzier2
1Université d'Angers , CNRS, Laboratoire Moltech-Anjou, UMR 6200, UFR Sciences, Bât. K, 2 Bd. Lavoisier, 49045 Angers, France.
Journal of the American Chemical Society
|May 12, 2016
まとめ
研究者は,新しい金属ビソチオレン複合体を用いて最初のキラル単一コンポーネント導体を開発しました. これらの材料は半導体特性と 独特の構造特性を備えており 新しい電子アプリケーションの道を開いています
科学分野:
- 材料科学
- 固体化学
- オーガニック電子
背景:
- 独特の電子と光学特性を備えています
- メタルディチオレン複合体は,その多様な伝導性と構造的行動で知られています.
- 単一コンポーネントの導電器の開発は,材料科学の重要な目標です.
研究 の 目的:
- 合成し,最初のキラル単一コンポーネントの導体を特徴づける.
- 新規のキラル金属 (ビソチオレン) 複合体の電子的および構造的性質を調査する.
- 分子構造,キラリティ,伝導性の関係を調べる
主な方法:
- 5,6-ジメチル-5,6-ジヒドロ-1,4-ジチイン-2,3-ジチオラート (dm-dddt) の (S,S) と (R,R) エナントイオマーを用いたキラル金属ビソチオレン複合体の合成.
- 単結晶のX線分析により,構造的および同位体特性を決定する.
- 単一結晶輸送 (導電性と抵抗性) の測定は,異なる条件下で行われます.
- 中性複合体を得るための電気結晶化.
- 電子結合と対称性に関する理論的研究
主要な成果:
- キラルアニオン金属ビソチオレン複合体 ([M(dm-dddt) 2 ,M = Au,Ni) を成功裏に製造した.
- アニオンニオンの複合体は,低伝導性と高活性化エネルギーを持つ半導体特性を示した.
- 中立のAu複合体は,分子間S·S相互作用と弱いC-H·S水素結合を示し,層構造をもたらした.
- ニュートラルなAu複合体では,対称なNi対称性とは異なり,ディチオレン分子の不対称性が観察された.
- 中性Au複合体は,非対称な構造への傾向を持つClass II混合価化合物として分類された.
結論:
- 金属ビソチオレン複合体に基づく最初のキラル単一コンポーネント導体が実現した.
- チラリティと分子構造は固体特性と伝導性に大きく影響する.
- これらのキラル導体の電子的振る舞いを調節する上で重要な役割を果たします.
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