In Situ Observation of the Two-Dimensional Crystals of Alkanes on a Reconstructed Au(100) Surface in Neat Liquid by Scanning Tunneling Microscopy
In Situ Observation of the Two-Dimensional Crystals of Alkanes on a Reconstructed Au(100) Surface in Neat Liquid by Scanning Tunneling Microscopy
复制标题
通过扫描隧道显微镜原位观察纯液体中重构 Au(100) 表面上烷烃的二维晶体
作者：
R. Y. and;K. Uosaki
原位扫描隧道显微镜发现十六烷和十七烷在其纯液体中在重建的Au（100）表面上形成二维（2D）晶体。十六烷和十七烷的二维晶体结构除了分子长度不同外，其他都非常相似。分子轴平行于表面平面，并沿[011]方向排列。分子行在[011]方向上延伸，即，垂直于分子轴。分子间存在高度变化，这是由于重构Au（100）表面的粗糙度引起的。分子轴似乎平行于重建的Au（100）表面的取向。
Hexadecane and heptadecane were found to form two-dimensional (2D) crystals on a reconstructed Au(100) surface in their neat liquids by in situ scanning tunneling microscopy. The structures of the 2D crystals of hexadecane and heptadecane were very similar to each other except for the molecular length. The molecular axis was parallel to the surface plane and was aligned in the [011] direction. The molecular rows ran in the [011] direction, i.e., perpendicular to the molecular axis. There was a height variation among the molecules which was attributed to the corrugation of the reconstructed Au(100) surface. The molecular axis seemed to orient parallel to the corrugation of the reconstructed Au(100) surface.