Spectra of the dications of benzene, naphthalene and azulene

详细信息	查看全文 | 推荐本文 |

• 作者：John H.D. El
• 关键词：Dications ; Aromatic molecules ; Photoionisation ; Spectra
• 刊名：Chemical Physics
• 出版年：2008
• 期刊代码：18_03010104
• 类别：ch
• 出版时间：3 April 2008
• 卷：345
• 期：1
• 页码：82-86
• 文件大小：229 K

摘要

Spectra of the dications of benzene, naphthalene and azulene produced by double photoionisation of the parent compounds are presented. All the electron distributions show evidence of inner-valence Auger processes, which enhance population of low energy states of the dications. It is confirmed that the ground state of the benzene dication is a triplet, contrary to a recent theoretical prediction. The double ionisation energies of the three title molecules are determined as 24.65 ± 0.03, 21.28 ± 0.03 and 20.2 ± 0.2 eV, respectively.