Infrared study on pressure-induced charge delocalization in Cs2TCNQ3
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概要
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Pressure dependence of several molecular vibration modes in Cs2TCNQ3 has been observed through the infrared absorption measurements. The behavior of the C-CN and C-H stretching modes suggests that phase transition takes place at around 3.6 GPa. The π* electrons, which are localized on TCNQ- molecules in the low-pressure phase, are delocalized significantly in the high-pressure phase. However, the radical-like and neutral-like molecules still coexist in the high-pressure phase indicating that the electrons are not completely delocalized. The electron-molecular-vibration (emv) coupled mode disappears in the high-pressure phase in coincident with the disappearance of the inter-radical charge transfer band S1, proving the strong coupling between them.
- Institute of Physics Publishingの論文
- 2002-11-11
Institute of Physics Publishing | 論文
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