The VUV electronic spectroscopy of acetone studied by synchrotron radiation
The VUV electronic spectroscopy of acetone studied by synchrotron radiation
复制标题
DOI：
10.1039/b708580j
复制
发表时间：
2008-01-01
影响因子：
3.3
通讯作者：
Limao-Vieira, P.
中科院分区：
文献类型：
--
作者：
Nobre, M.;Fernandes, A.;Limao-Vieira, P.
用高分辨真空紫外光吸收光谱研究了丙酮（CH_3）（2）CO在3.7- 10.8eV能量范围内的电子态谱。在1（1）A（1）-> 1（1）A（2）（n（y）-> pi*）跃迁的低能吸收带中观察到了新的电子振动结构。7.85 eV处的局部吸收最大值暂时归因于4（1）A（1）（pi -> pi*）跃迁。六里德堡系列收敛到最低电离能（9.708 eV）已被分配，以及一个新解决的ns里德堡系列收敛到第一离子激发态（12.590 eV）。里德伯轨道的每个系列已被分类根据量子亏损（δ）的大小，并扩展到更高的量子数比以前的分析。
The electronic state spectroscopy of acetone (CH3)(2)CO has been investigated using high-resolution VUV photoabsorption spectroscopy in the energy range 3.7-10.8 eV. New vibronic structure has been observed, notably in the low energy absorption band assigned to the 1(1)A(1) -> 1(1)A(2) (n(y) -> pi*) transition. The local absorption maximum at 7.85 eV has been tentatively attributed to the 4(1) A(1) (pi -> pi*) transition. Six Rydberg series converging to the lowest ionisation energy (9.708 eV) have been assigned as well as a newly-resolved ns Rydberg series converging to the first ionic excited state (12.590 eV). Rydberg orbitals of each series have been classified according to the magnitude of the quantum defect (delta) and are extended to higher quantum numbers than in the previous analyses.