The uploaded metadata consists of raw 1 H-NMR files used in the experimental analysis from "Metal Catalysis Ac?ng on Nitriles in Early Earth Hydrothermal Systems". Three datasets are provided standards used during analysis, spectra from nitrile reac?ons at 90°C, and spectra from nitrile reactions at 20°C. Data was originally generated with the MestReNova sofware and provided as MNOVA files. Additonal files with the chemical shifs (ppm, d) and intensities for each spectra are provided as Excel files. For the Excel file sheets, labelling is as follows: AN= acetonitrile MN= malononitrile SF= sodium formate H2= hydrogen gas (H2) Catalysts are listed as their elemental symbol or molecular formula.