Beiträge zur Chemie des Phosphors, 215. Einfache Darstellung des Pentaphosphacyclopentadienid-Ions,cyclo-P⊖5, durch Abbau von rotem Phosphor mit Kaliumdihydrogenphosphid

✍ Scribed by Baudler, Marianne ;Etzbach, Thomas

• Publisher: Wiley (John Wiley & Sons)
• Year: 1991
• Tongue: English
• Weight: 184 KB
• Volume: 124
• Category: Article
• ISSN: 0009-2940
• DOI: 10.1002/cber.19911240528

✦ Synopsis

Contributions to the Chemistry of Phosphorus, 215. – Simple Preparation of the Pentaphosphacyclopentadienide Ion, cyclo‐P^⊖^~5~, by Degradation of Red Phosphorus with Potassium Dihydrogenphosphide

The pentaphosphacyclopentadienide ion 1 is easily obtained in the form of a KP~5~ solution by the reaction of red phosphorus with potassium dihydrogenphosphide (1.9:1) in boiling dimethylformamide. The IR absorption at ṽ = 815 cm^−1^ previously observed for NaP~5~/[18]crown‐6/THF solutions is not to be assigned to 1. The formation of 1 in the degradation process of red phosphorus is discussed.