IR SPECTROSCOPY OF METALLO-FULLERENES: POTENTIAL ASTRONOMICAL PRESENCE?

Bakker, Joost M.

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https://hdl.handle.net/2142/122421 Copy

Description

Title

IR SPECTROSCOPY OF METALLO-FULLERENES: POTENTIAL ASTRONOMICAL PRESENCE?

Author(s)

Bakker, Joost M.

Contributor(s)

• Hou, Gao-Lei
• Decin, Leen
• Janssens, Ewald
• Lievens, Peter
• Lushchikova, Olga

Issue Date

2023-06-21

Keyword(s)

Mini-symposium: Infrared Spectroscopy in the JWST Era

Abstract

Efforts over 40 years still leave the source of astronomical infrared emission bands largely unidentified. We report the first laboratory infrared (6–25 µm) spectra of gas-phase fullerene-metal complexes, [C₆₀-Metal]⁺ (Metal = Fe, V), and show with density functional theory calculations that complexes of C₆₀ with cosmically abundant metals, including Li, Na, K, Mg, Ca, Al, V, Fe, all have similar spectral patterns. Comparison with observational infrared spectra from several fullerene-rich planetary nebulae demonstrates a strong positive linear cross-correlation. The infrared features of [C₆₀-Metal]⁺ coincide with four bands attributed earlier to neutral C₆₀ bands, and in addition also with several to date unassigned bands.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

Text

Language

eng

Handle URL

https://hdl.handle.net/2142/122421

DOI

https://doi.org/10.15278/isms.2023.6712

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