cc-by-4.0Kurten, Theo2025-04-292023-03-062023-03-06https://datakatalogi.helsinki.fi/handle/123456789/4203The data used in the preparation of the manuscript "A large gas-phase source of esters and other accretion products in the atmosphere". The data set includes the full mass spectra of all of the isotope labelled experiments show in the Fig. 3 of the manuscript (MS_data.zip), and the files for the quantum chemical calculations throughout the manuscript (Final-QC-out.zip).Mass SpectrometryAtmospheric ChemistryQuantum Chemistrydataset