Tungsten(VI) and Tungsten(V) Fluoride Complexes

✍ Scribed by Said El-Kurdi; Abdal-Azim Al-Terkawi; Bernd M. Schmidt; Anton Dimitrov; Konrad Seppelt

• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 228 KB
• Volume: 16
• Category: Article
• ISSN: 0947-6539
• DOI: 10.1002/chem.200902307

✦ Synopsis

Abstract

WF~6~ reacts with phosphines R~3~P forming 1:1 compounds. With R=P(CH~3~)~3~ the coordination around the tungsten atom is capped trigonal prismatic, with R=P(CH~3~)~2~C~6~H~5~ the coordination is capped octahedral, as established by single‐crystal structure determinations: [(CH~3~)~3~PWF~6~]: a=752.5(21), b=945.7(24), c=629.8(18) pm. β=110.36(13)°, space group Cm, Z=2; [(CH~3~)~2~(C~6~H~5~)PWF~6~]: a=762.2(2), b=1123.5(2), c=2647.5(6) pm, space group Pbca, Z=8. [(CF~3~CH~2~)~2~NWF~5~] reacts smoothly with P(C~6~H~5~)~3~ forming known P(C~6~H~5~)~3~(F)~2~ and [(CF~3~CH~2~)~2~NWF~4~P(C~6~H~5~)~3~], a stable, green, molecular species, identified among other methods with an crystal structure determination: a=914.9(1), b=956.0(1), c=1449.8(2) pm, α=7.642(4), β=81.648(3), γ=81.519°, space group P$\bar 1$, Z=2.