High-resolution vibrational and rotational spectroscopy of CD2H+ in a cryogenic ion trap
High-resolution vibrational and rotational spectroscopy of CD2H+ in a cryogenic ion trap
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DOI：
10.1016/j.jms.2016.10.017
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发表时间：
2017-02-01
影响因子：
1.4
通讯作者：
Asvany, Oskar
中科院分区：
文献类型：
--
作者：
Jusko, Pavol;Stoffels, Alexander;Asvany, Oskar
低激发态（J= 0...... 5)在低温22极离子阱中，应用多种作用光谱方法，用高分辨振转光谱和纯转动光谱研究了CD_2H ~+的分子结构。为此，v（1）振转带已被重新访问，检测到108个跃迁，其中36个是新的。频率梳系统的使用使我们能够以高精度和准确度测量振转跃迁，通常优于1 MHz。通过比较基态和激发态的等组合差，证实了高精度。此外，对基态的纯转动跃迁的精确预测是可能的。用一种新颖的红外毫米波双共振方法直接探测到25个转动跃迁，得到了高精度的基态光谱参数。(C)2016 Elsevier Inc. All rights reserved.
The low-lying rotational states (J= 0..... 5) of CD2H+ have been probed by high-resolutionro-vibrational and pure rotational spectroscopy, applying several action spectroscopic methods in a cryogenic 22-pole ion trap. For this, the v(1) ro-vibrational band has been revisited, detecting 108 transitions, among which 36 are new. The use of a frequency comb system allowed us to measure the ro-vibrational transitions with high precision and accuracy, typically better than 1 MHz. The high precision has been confirmed by comparing equal combination differences in the ground and excited state. Moreover, precise predictions of pure rotational transitions were possible for the ground state. Twenty-five rotational transitions have been detected directly by a novel IR-mm-wave double resonance method, giving rise to highly accurate ground state spectroscopic parameters. (C) 2016 Elsevier Inc. All rights reserved.