Experimental VUV Photoionization of C₇₀ and Vibrationally Resolved Spectra of the Excited Electronic States of the C₇₀ ^<b>+</b> Cation.

ABSTRACT: The nature of the photoionization of fullerenes is of significant interest to molecular astrophysics and astrochemistry. The C₆₀ ⁺ cation has been identified as a carrier of five of the diffuse interstellar bands (DIBs), and recent correlations between C₇₀ ⁺ electronic bands and a few weak DIBs have been presented. In this work, we present a high-resolution electronic spectrum of C₇₀ ⁺ recorded with He-tagging messenger spectroscopy, as well as the first threshold photoelectron spectrum (TPES) of C₇₀. We comment on the He cage stability around C₇₀ ⁺ and how it differs from that around other fullerenes, and we suggest some tentative vibrational assignments to the electronic spectrum based on a

SUBMITTER: Ganner L 

PROVIDER: S-EPMC12641481 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature