Table 15 Functional parent compounds for phosphorus acids and functional replacement modifications

Parent compound Replacement of -OH by -SH
and/or =O by =S
Replacement of =O by =NH

Phosphinic acid

Phosphinothioic O-acid

Phosphinimidic acid

Phosphinothioic S-acid

Phosphinodithioic acid

Phosphonic acid

Phosphonothioic O,O'-acid

Phosphonimidothioic acid

Phosphonothioic O,S'-acid

Phosphonodithioic S,S'-acid

Phosphonotrithioic acid

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