The KRb ground electronic state potential up to 10 Å
The KRb ground electronic state potential up to 10 Å
复制标题
KRb 基电子态电位高达 10 Å
DOI：
10.1063/1.481310
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发表时间：
2000
影响因子：
4.4
通讯作者：
J. Vergès
中科院分区：
文献类型：
--
作者：
C. Amiot;J. Vergès
用掺钛蓝宝石激光器激发KRb分子，在Connes型傅里叶变换干涉仪上记录了A1 <$+→ X1<$+系统的高分辨光谱。 测定了X1 ~+态前88个振动能级的分子常数，并导出了原子核间距为10.419（势阱深度的99.3%）时的势能曲线.解离极限的能量为De=4217.3（15）cm-1（很好地参考了势曲线的底部），与Jenc和Brandt的理论预测非常一致[J. Mol. 光谱分析154，226（1992）]，其给出De=4220（20）cm-1，Kasahara等人[J.Chem.Phys.111，8857（1999）]报道的值De=4217.4（8）cm-1。
High resolution spectra of the A 1Σ+→X 1Σ+ system of the KRb molecule, obtained after excitation using a titanium-doped sapphire laser, were recorded on a Connes-type Fourier transform interferometer. Molecular constants of the first 88 vibrational levels of the X 1Σ+ state are determined, and the potential energy curve is derived up to an internuclear distance of 10.419 A (99.3% of the potential well depth). The energy of the dissociation limit is found as De=4217.3 (15) cm−1 (referred to the bottom of the potential curve well), in good agreement with the theoretical predictions of Jenc and Brandt [J. Mol. Spectrosc. 154, 226 (1992)] who gave De=4220 (20) cm−1 and the value De=4217.4 (8) cm−1 reported by Kasahara et al. [J. Chem. Phys. 111, 8857 (1999)].