Year-Long Stability of Nucleic Acid Bases in Concentrated Sulfuric Acid: Implications for the Persistence of Organic Chemistry in Venus' Clouds

Year-Long Stability of Nucleic Acid Bases in Concentrated Sulfuric Acid: Implications for the Persistence of Organic Chemistry in Venus’ Clouds

* correspondence: [e-mail]

Supplementary datasets:

Dataset S1. Dataset S1 contains original NMR data. 

The folder “DATASET S1 - 1 YEAR BASES IN CSA ORIGINAL DATA.zip” contains the following data: a) Original data for 13C NMR spectra collected after 1-year week incubation in concentrated sulfuric acid.

b) Original data for 1H NMR after 1-year incubation in 98% w/w sulfuric acid.

c) Mnova files used for the comparison of the 1-year spectra to the original NMR spectra published in the original study (https://www.pnas.org/doi/abs/10.1073/pnas.2220007120).

The 1D-13C NMR measurements in sulfuric acid at different concentrations follow the following naming convention. Different concentrations (by weight) of sulfuric acid in water are denoted by different letters from H-K: 98% D2SO4/2% D2O; 94% D2SO4/6% D2O; 88% D2SO4/12% D2O; 81% D2SO4/19% D2O, all with DMSO-d6 as a reference and at room temperature.

H - 81% D2SO4/19% D2O with DMSO-d6 as a reference and at room temperatureI - 88% D2SO4/12% D2O with DMSO-d6 as a reference and at room temperatureJ - 94% D2SO4/6% D2O with DMSO-d6 as a reference and at room temperatureK - 98% D2SO4/2% D2O with DMSO-d6 as a reference and at room temperature