Negative ion photoelectron spectroscopy of SiN

被引:14
|
作者
Meloni, G
Sheehan, SM
Ferguson, MJ
Neumark, DM [1 ]
机构
[1] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA
[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA
来源
JOURNAL OF PHYSICAL CHEMISTRY A | 2004年 / 108卷 / 45期
关键词
D O I
10.1021/jp047910d
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Negative ion photoelectron spectra of SiN- have been recorded using the 355 nm (3.493 eV) and 266 nm (4.661 eV) photodetachment wavelengths. The spectra exhibit resolved vibrational features corresponding to transitions to the X (2)Sigma(+) and A (2)Pi states of SiN. Franck-Condon analyses yield the first experimental spectroscopic parameters, r(e), and (omega(e) for the anion ground state, X (1)Sigma(+). We also determined the first experimental adiabatic electron affinity as 2.949 +/- 0.008 eV. The anion dissociation energy D-0(SiN-) is then obtained from the electron affinities of Si and SiN and the dissociation energy of the neutral.
引用
收藏
页码:9750 / 9754
页数:5
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