Structure and properties of phosphorodiamidic acid: HPO2(NH2)2at room temperature

✍ Scribed by K. Kowalczyk; Y. Parent; P. Vast; G. Palavit

• Publisher: Springer
• Year: 1993
• Tongue: English
• Weight: 410 KB
• Volume: 28
• Category: Article
• ISSN: 0022-2461
• DOI: 10.1007/bf00354257

✦ Synopsis

At room temperature, phosphorodiamidic acid (HPO2(NH2)2) has a mobile hydrogen, which leads to P-NH + and P-O-groups in limiting form. According to the spectroscopic analysis, a limiting (zwitterion) or a medium form (compound with mobile hydrogen) is prominent. This mobile hydrogen leads phosphorodiamidic acid to react with itself giving P-N(H)-P bridges and ammonium. We obtained a major compound ammonium salt of diamido 1, 2 imidodiphosphate which is present as 31 p MAS NMR, a crystallographic nonequivalency.