McGuire, Brett A., Asvany, Oskar, Brunken, Sandra ORCID: 0000-0001-7175-4828 and Schlemmer, Stephan ORCID: 0000-0002-1421-7281 (2020). Laboratory spectroscopy techniques to enable observations of interstellar ion chemistry. Nat. Rev. Phys., 2 (8). S. 402 - 411. LONDON: SPRINGERNATURE. ISSN 2522-5820

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Abstract

Molecular ions have long been considered key intermediates in the evolution of molecular complexity in the interstellar medium. However, owing to their reactivity and transient nature, ions have historically proved challenging to study in terrestrial laboratory experiments. In turn, their detection and characterization in space is often contingent upon advances in the laboratory spectroscopic techniques used to measure their spectra. In this Review, we discuss the advances over the past 50 years in laboratory methodologies for producing molecular ions and probing their rotational, vibrational and electronic spectra. We largely focus this discussion around the widespread H(3)(+)cation and the ionic products originating from its reaction with carbon atoms. Finally, we discuss the current frontiers in this research and the technical advances required to address the spectroscopic challenges that they represent. Despite comprising only about 15% of the known molecular inventory of the interstellar medium, molecular ions have an outsized role in driving chemical evolution. This Review examines the advances - and challenges - in laboratory spectroscopy that have enabled the study of ions in space.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
McGuire, Brett A.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Asvany, OskarUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Brunken, SandraUNSPECIFIEDorcid.org/0000-0001-7175-4828UNSPECIFIED
Schlemmer, StephanUNSPECIFIEDorcid.org/0000-0002-1421-7281UNSPECIFIED
URN: urn:nbn:de:hbz:38-326833
DOI: 10.1038/s42254-020-0198-0
Journal or Publication Title: Nat. Rev. Phys.
Volume: 2
Number: 8
Page Range: S. 402 - 411
Date: 2020
Publisher: SPRINGERNATURE
Place of Publication: LONDON
ISSN: 2522-5820
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
MOLECULAR-IONS; INFRARED-SPECTROSCOPY; ROTATIONAL SPECTROSCOPY; FUNDAMENTAL-BAND; METHYL CATION; CARBO-IONS; NU-1 BAND; COLD; SPECTRA; H2D+Multiple languages
Physics, Applied; Physics, MultidisciplinaryMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/32683

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