SPECTROSCOPY AND ELECTRONIC-STRUCTURE OF JET-COOLED AL-2
SPECTROSCOPY AND ELECTRONIC-STRUCTURE OF JET-COOLED AL-2
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DOI：
10.1063/1.459280
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发表时间：
1990-12-15
影响因子：
4.4
通讯作者：
MORSE, MD
中科院分区：
文献类型：
--
作者：
FU, ZW;LEMIRE, GW;MORSE, MD
本文用共振双光子电离光谱研究了喷流冷却的Al_2分子。 基态具有3-PI-u对称性，源自sigma-1（g）pi-1（u）电子组态。 高分辨率研究已经确定X3-PI-u态的键长为r（e）（X3-PI-u）= 2.701 +/ 0.002埃。 使用观测到的和计算出的低位电子态的性质，重新评估了Al 2键强度的第三定律估计，得到D 0（0）（Al 2）1.34 +/- 0.06 eV。 除了先前报道的E 23-SIGMA-（g）-
Resonant two-photon ionization spectroscopy has been used to study the jet-cooled Al2 molecule. The ground state has been conclusively demonstrated to be of 3-PI-u symmetry, deriving from the sigma-1(g) pi-1(u) electronic configuration. High resolution studies have established the bond length of the X3-PI-u state as r(e) (X3-PI-u) = 2.701 +/ 0.002 angstrom. The third-law estimate of the Al2 bond strength has been reevaluated using the observed and calculated properties of the low-lying electronic states to give D0(0) (Al2) 1.34 +/- 0.06 eV. In addition to the previously reported E 23-SIGMA-(g)-