Evolution of the ionisation energy with the stepwise growth of chiral clusters of [4]helicene
Sérgio R. Domingos,
Denis S. Tikhonov,
Amanda L. Steber
et al.
Abstract:Polycyclic aromatic hydrocarbons (PAHs) are widely established as ubiquitous in the interstellar medium (ISM), but considering their prevalence in harsh vacuum environments, the role of ionisation in the formation of PAH clusters is poorly understood, particularly if a chirality-dependent aggregation route is considered. Here we report on photoelectron spectroscopy experiments on [4]helicene clusters performed with a vacuum ultraviolet synchrotron beamline. Aggregates (up to the heptamer) of [4]helicene, the s… Show more
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