High-resolution vibrational and rotational spectroscopy of CD2H+ in a cryogenic ion trap

被引：32

作者：

Jusko, Pavol ^{[1
]}

Stoffels, Alexander ^{[1
,2
]}

Thorwirth, Sven ^{[1
]}

Bruenken, Sandra ^{[1
]}

Schlemmer, Stephan ^{[1
]}

Asvany, Oskar ^{[1
]}

机构：

[1] Univ Cologne, Inst Phys 1, D-50937 Cologne, Germany

[2] Radboud Univ Nijmegen, Inst Mol & Mat, FELIX Lab, NL-6525 ED Nijmegen, Netherlands

来源：

JOURNAL OF MOLECULAR SPECTROSCOPY | 2017年 / 332卷

关键词：

Ion trap; Rovibrational spectroscopy; Rotational spectroscopy; CD2H+; Ion-molecule reaction; Frequency comb; INFRARED-SPECTROSCOPY; CARBO-IONS; H2D+; CH2D+; TRANSITIONS; SPECTRA; CONSTANTS; CCSD(T); L-C3H+; H-3(+);

D O I：

10.1016/j.jms.2016.10.017

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

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.

引用

页码：59 / 66

页数：8

共 42 条

[21] High-precision and high-accuracy rovibrational spectroscopy of molecular ions [J].