Selenium Dioxide → HCID 12095352, Verbindung
Reaktionsgleichung
[Se](=O)=O.[F:4][C:5]([F:45])([C:41]([F:44])([F:43])[F:42])[C:6]([F:40])([F:39])[C:7]([P:10]([C:26]([F:38])([F:37])[C:27]([F:36])([F:35])[C:28]([F:34])([F:33])[C:29]([F:32])([F:31])[F:30])([C:13]([F:25])([F:24])[C:14]([F:23])([F:22])[C:15]([F:21])([F:20])[C:16]([F:19])([F:18])[F:17])(F)F)([F:9])[F:8]>>[P:10]([C:7]([C:6]([C:5]([C:41]([F:42])([F:43])[F:44])([F:4])[F:45])([F:39])[F:40])([F:8])[F:9])([C:26]([C:27]([C:28]([C:29]([F:32])([F:31])[F:30])([F:34])[F:33])([F:36])[F:35])([F:38])[F:37])[C:13]([C:14]([C:15]([C:16]([F:19])([F:18])[F:17])([F:21])[F:20])([F:23])[F:22])([F:25])[F:24]Komponenten
3
Reaktionsbedingungen
- Temperatur
- 120 °C
Versuchsvorschrift
2.14 g (19.3 mmol) of selenium dioxide, SeO2, are added to 12.445 g (17.1 mmol) of tris(nonafluorobutyl)difluorophosphorane, (C4F9)3PF2, in a 100 ml glass round-bottomed flask and warmed (120° C. oil-bath temperature). An intensive reflux condenser is connected downstream of the flask. The suspension is stirred at 120° C. for 3 h. After this time, no weight loss, but complete consumption of (C4F9)3PF2 and formation of (C4F9)3P═O can be detected. The entire suspension is condensed at 80° C. in vacuo (10−3 mbar). Clear and colourless (C4F9)3P═O (7.426 g; 10.5 mmol; 62%) in 87% purity can be isolated.