Simultaneous observation of dipole-bound and valence electron states in pyridine tetramer anion
Simultaneous observation of dipole-bound and valence electron states in pyridine tetramer anion
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同时观察吡啶四聚体阴离子中的偶极结合态和价电子态
DOI：
10.1063/1.477633
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发表时间：
1998
影响因子：
4.4
通讯作者：
S. K. Kim
中科院分区：
文献类型：
--
作者：
S. Han;J. Kim;J. Song;S. K. Kim
在吡啶四聚阴离子中，尽管吡啶本身不以任何一种机制结合电子，但光电子能谱观察到偶极束缚态和价电子态共存。两种状态的光电子产额表现出明显不同的激光偏振依赖性。这两种状态具有完全不同的热力学稳定性这一事实表明，在团簇的构型空间中可能存在一个能垒将这两种形式分开。
Coexistence of dipole-bound and valence electron states was observed by photoelectron spectroscopy in pyridine tetramer anion despite the fact that pyridine itself does not bind electrons by either mechanism. The photoelectron yield for the two states showed distinctly different laser polarization dependence. The fact that these two states have rather disparate thermodynamic stabilities suggests that there may exist an energy barrier separating the two forms in configuration space of the cluster.