The crystal structure of the title compound, lithium (1-carboxyethenyloxy)p
hosphonate monohydrate, Li+. C3H4O6P- .- H2O, is governed by lithium-oxygen
interactions and hydrogen bonds. The Li+ cation is tetrahedrally coordinat
ed by phosphate and water O atoms. The phosphoenolpyruvate monoanions form
carboxyl-to-carboxyl and phosphate-to-water hydrogen bonds.