phosphoramides
Phosphoramides are a class of phosphorus compounds with the formula O=P(NR2)3-n(OH)n. They can be considered derivatives of phosphoric acid where OH groups have been replaced with an amino or R-substituted amino group. In practise the term is commonly confined to the phosphoric triamides (P(=O)(NR2)3), essentially phosphoramide and derivatives thereof.{{cite web |title=Phosphoramide |url=https://goldbook.iupac.org/terms/view/P04566 |website=IUPAC GoldBook}} Derivatives with the general structures P(=O)(OH)(NR2)2 or P(=O)(OH)2(NR2) are usually referred to as phosphoramidic acids.
Examples
- {{chem2|Na[PO2(OH)(NH2)]}}, the lightly studied parent monoamide of phosphoric acid.{{cite journal |doi=10.1002/zaac.19633250113 |title=Infrarotspektroskopische Untersuchungen zur Frage der Wasserstoffbrücken‐Absorptionen bei Natriumhydrogenamidophosphat und Amidosulfonsäure |trans-title=Phosphoramidic acid and its salts and their infrared spectra|date=1963 |last1=Steger |first1=E. |last2=Versuchen |first2=Nach |last3=Stopperka |first3=K. |journal=Zeitschrift für Anorganische und Allgemeine Chemie |volume=325 |issue=1–2 |pages=89–97 }}
- Phenyl phosphorodiamidate, a phosphoramide but also a phosphate ester, is used in agriculture to enhance the effectiveness of urea-based fertilizers.
- Hexamethylphosphoramide (HMPA) is a polar solvent.