在金属上植入单层时,用硬质阻碍的二亚盐
Catherine Combellas1, Frederic Kanoufi, Jean Pinson
1Laboratoire Environnement Chimie Analytique, ESPCI, CNRS UMR 7121, 10 rue Vauquelin, 75005 Paris, France.
Journal of the American Chemical Society
|June 17, 2008
概括
研究人员将一个有机单层电移植到铜,金和表面上. 重的三丁基群以固态方式阻碍了层的生长,控制了这些基板上的单层形成.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 表面化学 表面化学
背景情况:
- 有机单层提供可调的表面性能.
- 电移植为表面功能化提供了一种方法.
- 控制单层厚度和均性对于应用至关重要.
研究的目的:
- 为了研究3,5-bis-tert-butyl-benzenediazonium tetrafluoroborate的电植入. 为了研究3,5-bis-tert-butyl benzenediazonium tetrafluoroborate的电植入.
- 描述铜,金和表面所产生的有机单层.
- 了解大型替代剂对单层形成的影响.
主要方法:
- 使用3,5-bis-tert-butyl-benzenediazonium tetrafluoroborate进行电移植.
- 循环电压测量用于电化学分析.
- 红外衰减总反射率 (IR-ATR) 谱学用于化学表征.
- 圆测量用于厚度和折射率测量.
主要成果:
- 在Cu,Au和SiH表面上成功形成有机单层.
- 单层形成的证据通过循环电压测量,IR-ATR和圆测量证实.
- 3,5-bis-tert-butyl组的固体阻碍限制了层的生长,导致单层.
结论:
- 电移植对于在各种基板上形成有机单层是有效的.
- 大量的3,5-bis-tert-butyl组在实现单层形成方面发挥着至关重要的作用.
- 这种方法可以进行受控的表面修饰,在电子和传感器方面有潜在的应用.
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The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
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