6.1. Nonconjugated PH-acids
6.1.1.
Phosphine R1R2PH
6.1.2.
Phosphoric acids R1R2P(O)H
6.1.3.
Thiophosphoric acids R1R2P(S)H
6.2.
Conjugated PH-acids (P+H-acids)
6.2.1.
R3P+H
6.2.2.
R1R2P+HPh
6.2.3.
R1R2R3P+H