Controlling the orbital sequence in individual Cu-phthalocyanine molecules.
Controlling the orbital sequence in individual Cu-phthalocyanine molecules.
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DOI：
10.1021/nl304483h
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发表时间：
2013-01
期刊：
影响因子：
10.8
通讯作者：
Christof Uhlmann;I. Swart;J. Repp
中科院分区：
文献类型：
--
作者：
Christof Uhlmann;I. Swart;J. Repp
我们报告的控制变化的能量有序的分子轨道。带负电荷的酞菁铜在NaCl/Cu（100）上发生了Jahn-Teller畸变，从而提高了两个前线轨道的简并度。能级的能量顺序可以由分子附近的Au和Ag原子控制。由于只有一个状态被占据，能量顺序的控制伴随着分子内部电荷分布的急剧变化，使其成为一个开关。
We report on the controlled change of the energetic ordering of molecular orbitals. Negatively charged copper(II)phthalocyanine on NaCl/Cu(100) undergoes a Jahn-Teller distortion that lifts the degeneracy of two frontier orbitals. The energetic order of the levels can be controlled by Au and Ag atoms in the vicinity of the molecule. As only one of the states is occupied, the control of the energetic order is accompanied by bistable changes of the charge distribution inside the molecule, rendering it a bistable switch.