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: seager@mit.edu

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 temperature
I - 88% D₂SO₄/12% D₂O with DMSO-d₆ as a reference and at room temperature
J - 94% D₂SO₄/6% D₂O with DMSO-d₆ as a reference and at room temperature
K - 98% D₂SO₄/2% D₂O with DMSO-d₆ as a reference and at room temperature