We report the discovery of bridge-bonded methylthiolate, SCH₃, along the step edges of the Au(111) surface. Real-space imaging with a scanning tunnelling microscope reveals the presence of bridge-bonded SCH₃ along both the [10] and the [11] oriented step edges. The nearest neighbour distances of SCH₃ along these steps are 2a and , respectively. The Au(111) terrace is covered with the usual CH₃SAuSCH₃ staples. The bridge-bonded alkanethiolate is expected to play a rather significant role in the formation of thiol-passivated Au nanoclusters because of the high fraction of atoms in similar low-coordination sites.

中文翻译：

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用扫描隧道显微镜观察在Au（111）上桥键合的甲硫醇甲酯

我们报告发现沿Au（111）表面台阶边缘桥键合的甲基硫醇盐SCH ₃的发现。使用扫描隧道显微镜的真实空间成像揭示了沿[1 0]和[11 ]取向的台阶边缘均存在桥键结合的SCH ₃。SCH的最接近的相邻距离₃沿着这些步骤是2一和，分别。Au（111）平台覆盖有常用的CH ₃ SAuSCH ₃订书钉。桥键合链烷硫醇盐由于在相似的低配位位点中具有较高的原子分数，因此有望在硫醇钝化的Au纳米团簇的形成中发挥相当重要的作用。