High resolution rovibrational and rotational spectroscopy of H2CCCH+

被引：5

作者：

Silva, Weslley G. D. P. ^{[1
]}

Gupta, Divita ^{[1
]}

Plaar, Eline ^{[1
]}

Domenech, Jose Luis ^{[2
]}

Schlemmer, Stephan ^{[1
]}

Asvany, Oskar ^{[1
]}

机构：

[1] Univ Cologne, Phys Inst 1, Zulpicher Str 77, D-50937 Cologne, Germany

[2] IEM CSIC, Inst Estruct Mat, Madrid, Spain

来源：

MOLECULAR PHYSICS | 2024年 / 122卷 / 15-16期

基金：

欧洲研究理事会;

关键词：

Ion traps; rovibrational spectroscopy; rotational spectroscopy; molecular cations; GROUND-STATE; ASTRONOMICAL IDENTIFICATION; INFRARED-SPECTRA; C3H3+ ISOMERS; IR-SPECTRA; CONSTANTS; DIMERS;

D O I：

10.1080/00268976.2023.2296613

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The rovibrational spectrum of the molecular ion H2CCCH+ was investigated in a 4 K cryogenic ion trap instrument employing the leak-out spectroscopy method. Transitions within the fundamental nu(1 )(C-H stretch) and the combination band nu(3)+nu(5) (C-C stretches) were detected, the search aided by high level quantum chemical calculations. The analysis of the rovibrational measurements enabled us to predict the rotational structure of the ground state. Using a rotational-vibrational double-resonance scheme, 14 pure rotational transitions were measured. This, in turn, led to the radio astronomical detection of H(2)CCCH(+)in the interstellar medium, as recently reported (Silva et al., Astron. Astrophys. 676, L1, 2023).

引用

页数：8

共 37 条

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