Solvent notation is odd. Aqueous solution at neutral pH is noted as AQ07P4. Search the symbol abbreviations for additional solvent notation.
Radical notation uses the period to indicate the location of the radical.
The period must be the first character in the radical field. Hyperfine coupling constants. The hyperfine coupling constants are expressed in Gauss. For isotope nuclei such as 15N, 31P, 19F, 13C, etc, you may enetred them in the miscellaneous field. All searches are done case insensitive .