Terahertz spectroscopy of CaH

IF 2.8 3区化学 Q3 CHEMISTRY, PHYSICAL

Chemical Physics Letters Pub Date : 2025-03-09 DOI:10.1016/j.cplett.2025.142019

Jin Furuta , Kaori Kobayashi , Fusakazu Matsushima , Yoshiki Moriwaki , Hiroyuki Ozeki , Stephen C. Ross

引用次数: 0

Abstract

Calcium monohydride, CaH, has been a molecule of astrophysical interest ever since its first identification in sunspots. For astrophysical use it is therefore important to provide rest frequencies in the terahertz range. We observed pure rotational transitions for the υ = 0, and υ = 1 levels. This is the first report of pure rotational spectra of the υ = 1 level. We also performed a global fitting of the effective molecular constants for the υ = 0 to υ = 4 levels of the electronic ground state along with infrared transitions from previous studies.

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来源期刊

Chemical Physics Letters 化学-物理：原子、分子和化学物理

CiteScore

5.70

自引率

3.60%

发文量

798

审稿时长

33 days

期刊介绍： Chemical Physics Letters has an open access mirror journal, Chemical Physics Letters: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. Chemical Physics Letters publishes brief reports on molecules, interfaces, condensed phases, nanomaterials and nanostructures, polymers, biomolecular systems, and energy conversion and storage. Criteria for publication are quality, urgency and impact. Further, experimental results reported in the journal have direct relevance for theory, and theoretical developments or non-routine computations relate directly to experiment. Manuscripts must satisfy these criteria and should not be minor extensions of previous work.