1. eprscope::isotopes_ds
    Nuclear Isotope Data Frame (Dataset) with ENDOR Frequencies
    csv| xlsx| json| ndjson| rda| rds
    data.table|351 x 9
  2. eprscope::solvents_ds
    Solvent Properties Data Frame (Dataset) for EPR/ENDOR
    csv| xlsx| json| ndjson| rda| rds
    tbl_df|46 x 10