Spectroscopy of the low-lying states of CaO+

被引：0

作者：

VanGundy R.A. ^{[1
]}

Bartlett J.H. ^{[1
]}

Heaven M.C. ^{[1
]}

机构：

[1] Department of Chemistry, Emory University, Atlanta, 30322, GA

来源：

Journal of Molecular Spectroscopy | 2018年 / 344卷

关键词：

Bond strength (chemical) - Excited states - Ionization;

D O I：

10.1016/j.jms.2017.10.001

中图分类号：

学科分类号：

摘要：

Low energy states of CaO+ have been examined by means of two-color threshold ionization spectroscopy. It is established that the ground state is X2Πi and the first excited state, just 685 cm−1 higher in energy, is A2Σ+. Due to the close proximity of the X2Π1/2 and A2Σ+ vibronic levels, they are mutually perturbing via the spin-orbit operator. A deperturbation analysis is presented for two pairs of levels. These measurements also yielded improved values for the ionization energy of CaO (55,428 ± 3 cm−1) and the bond dissociation energy of CaO+ (27,000 ± 600 cm−1). The results validate previous theoretical calculations and provide spectroscopic data of value for future ion trap studies of CaO+ at ultra-cold temperatures. © 2017 Elsevier Inc.

引用

页码：17 / 20

页数：3

共 20 条

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