Fullerene-indene adducts (ICMA & ICBA) in an astrochemical perspective. Part 2: FT-IR spectroscopy from −180 °C to +250 °C

Abstract

It is likely that indene-C₆₀ mono-adduct (ICMA) as well as the indene-C₆₀ bis-adducts (ICBA) could exist in space. With this astrochemical perspective in mind, the FT-IR spectra of these two compounds were recorded in a wide range of temperatures from −180 °C to +250 °C. Furthermore, the molar extinction coefficients and integrated molar absorptivity of the main infrared absorption bands of ICMA and ICBA have been measured. The infrared data presented in this work may allow the astrochemists and astrophysicists an easy qualitative and quantitative potential identification of ICMA and ICBA in space.

Keywords:

• C₆₀-indene adducts
• ICMA
• ICBA
• FT-IR spectroscopy
• astrochemistry

Additional information

Funding

We acknowledge support from State Research Agency (AEI) of the Spanish Ministry of Science and Innovation (MICINN) under grant PID2020-115758GB-I00. This article is based upon work from COST Action NanoSpace, CA21126, supported by COST (European Cooperation in Science and Technology).