在金双乙烯复合体中进行局部化与脱局部化
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
概括
研究人员使用新型金属双乙烯复合体开发了第一个奇拉单元导体. 这些材料具有半导体特性和独特的结构特性,为新的电子应用铺平了道路.
科学领域:
- 材料科学
- 固态化学
- 有机电子
背景情况:
- 这种材料具有独特的电子和光学特性.
- 金属二醇复合物以其多样化的导电性和结构性行为而闻名.
- 开发单元导体是材料科学的一个关键目标.
研究的目的:
- 合成和描述第一个单元导体.
- 研究新型性金属二甲复合物的电子和结构性质.
- 探索分子结构,性和导电性之间的关系.
主要方法:
- 使用 (S,S) 和 (R,R) 5,6-二甲基-5,6-二-1,4-二甲基-2,3-二甲基酸盐 (dm-dddt) 联体的奇拉金属二甲基乙烯复合物的合成.
- 单晶X射线分析以确定结构和异构性质.
- 在不同的条件下测量单晶传输 (导电性和电阻性).
- 通过电晶化获得中性复合物.
- 电子合和对称性的理论研究.
主要成果:
- 成功制备的性离子金属二乙烯复合物 ([Mm-dddt) 2 ,M = Au,Ni).
- 阴离子Ni复合体表现出具有低导电性和高激活能量的半导体行为.
- 中性Au复合体表现出分子间S·S相互作用和弱C-H·S键,导致分层结构.
- 在中性Au复合物中观察到dithiolene部分之间的不对称性,与对称的Ni对应物不同.
- 中性Au复合物被归类为II类混合价值化合物,倾向于具有不对称的结构.
结论:
- 已经实现了基于金属双乙烯复合物的第一个单元导体.
- 性和分子结构显著影响固态特性和导电性.
- 分子间相互作用在调节这些性导体的电子行为中起着至关重要的作用.
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