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Orbital specific chemistry:Controlling the pathway in single-molecule dissociation

机译:轨道特定化学:控制单分子解离的途径

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A scanning tunneling microscope (STM) was used to control the pathway of the dissociation of single O_2 molecules chemisorbed on Ag(110) at 13 K.Tunneling of electrons from the STM tip into the O_2 caused dissociation of the molecule,giving rise to two adsorbed O atoms separated along the [110] direction.In contrast,the ejection of electrons from the O_2 molecule produced adsorbed O atoms separated along the [001] direction.These results illustrate that control of the dissociation pathway and product formation are associated with a specific molecular orbital located at the Fermi level.
机译:扫描隧道显微镜(STM)用于控制在13 K下化学吸附在Ag(110)上的单个O_2分子的解离路径。电子从STM尖端向O_2的隧穿导致该分子解离,从而导致两个吸附的O原子沿[110]方向分离。相反,电子从O_2分子的喷出产生了吸附的O原子,沿[001]方向分离。这些结果说明,解离路径和产物形成的控制与分子的形成有关。位于费米能级的特定分子轨道。

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