Ligand primitive symbol (L) e.g. Gly-1
LH/L.H LH2/L.H2 LH3/L.H3 LH4/L.H4
LH-1/L.H-1 LH2/LH.H LH3/LH2.H LH4/LH3.H

Primitive ligand symbols are a sequence of characters that uniquely represent the species involved in the required reaction. For example (without the quotes), 'Gly-1' represents 'glycinate', 'NH3' represents 'ammonia', 'EDTA-4' represents 'ethylenediaminetetraacetate' and 'CO3-2' represents 'carbonate'. You can establish the symbol of any ligand that you require through the 'Find Species Symbol' search.

Use 'LH2/LH.H' for first acid dissociation constant of carbonic acid and 'LH/L.H' for the second. Use 'LH4/LH3.H' for the first acid dissociation constant of EDTA, etc.

More powerful database interrogation programs are available when the JESS package is installed locally.