phosphoramide
{{see also|Phosphoramides}}
{{Chembox
| ImageFile = Phosphoramide.svg
| ImageSize = 150px
| ImageAlt =
| IUPACName = Phosphoric triamide
| OtherNames = {{ubl|Diaminophosphorylamine|Phosphoric amide|Phosphoryl triamide|Triaminophosphine oxide}}
| Section1 = {{Chembox Identifiers
| CASNo = 13597-72-3
| CASNo_Ref = {{cascite|correct|CAS}}
| UNII_Ref = {{fdacite|correct|FDA}}
| UNII = M27WLZ6CWP
| PubChem = 123317
| ChemSpiderID = 109920
| SMILES = NP(=O)(N)N
| InChI = 1/H6N3OP/c1-5(2,3)4/h(H6,1,2,3,4)
| InChIKey = DMSZORWOGDLWGN-UHFFFAOYAP
| StdInChI = 1S/H6N3OP/c1-5(2,3)4/h(H6,1,2,3,4)
| StdInChIKey = DMSZORWOGDLWGN-UHFFFAOYSA-N}}
| Section2 = {{Chembox Properties
| Formula = {{chem2|O\dP(NH2)3}}
| H=6|N=3|O=1|P=1
| Appearance = white solid
| pKa = <3.6{{cite book|title=Ionisation Constants of Inorganic Acids and Bases in Aqueous Solution|editor-first=D. D.|editor-last=Perrin|edition=2nd|series=IUPAC Chemical Data|issue=29|publisher=Pergamon|location=Oxford|year=1982|publication-date=1984|orig-date=1969|lccn=82-16524|isbn=0-08-029214-3|at=Entry 186}}
| Solubility = good
}}
| Section3 = {{Chembox Hazards
| MainHazards =
| FlashPt =
| AutoignitionPt =
}}
}}
Phosphoramide is a chemical compound with the molecular formula {{chem2|O\dP(NH2)3}}. It is a derivative of phosphoric acid in which each of the hydroxyl groups have been replaced with an amino group. In bulk, the compound is a white solid which is soluble in polar solvents.
Chemical properties
Phosphoramide arises from the reaction of phosphoryl chloride with ammonia. In moist air, it hydrolyzes to an ammonium salt:
:{{chem2|2 H2O + O\dP(NH2)3 → [NH4]+[PO2(OH)(NH2)]− + NH3}}
It reacts with sodium hydroxide with loss of ammonia:{{cite journal|journal=Chemische Berichte|title=Phosphoroxy‐triamid und Phosphorthio‐triamid|author=Robert Klement |author2=Otto Koch |volume=87|pages=333–340|year=1954|issue=3|doi=10.1002/cber.19540870308}}
:{{chem2|NaOH + O\dP(NH2)3 → Na+[PO2(NH2)2]− + NH3}}
The related thiophosphoryl triamide compound {{chem2|S\dP(NH2)3}} was made from the reaction of thiophosphoryl chloride with ammonia.
Phosphoramides
{{main|Phosphoramides}}
Phosphoramide is also the parent compound for a range of derivatives called phosphoramides.{{GoldBookRef|title=phosphoramides| file = A00484}} An example compound is the polar solvent hexamethylphosphoramide (HMPA).
References
{{reflist}}
External links
- {{commons category-inline|phosphoramides}}
- {{wiktionary inline|phosphoramide}}