کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1337979 | 979656 | 2012 | 4 صفحه PDF | دانلود رایگان |

A novel borane-capped niobium phosphide anion ([B(C6F5)3-1]) has been prepared in 87% yield by reaction of [PNb(N[Np]Ar)3]− (1, Ar = 3,5-C6H3Me2 and Np = neopentyl) with the Lewis acidic borane B(C6F5)3. Room-temperature reaction of this adduct with carbon dioxide readily yields the OCP− ion 3, isolated as its sodium salt, [Na(dme)2][OCP] (dme = dimethoxyethane), in 70% yield, with concomitant formation of a borane-substituted niobium oxo complex [B(C6F5)3-2] (2 = ONb(N[Np]Ar)3).
The niobium phosphide anion complex [PNb(N[Np]Ar)3]−, where Np = neopentyl and Ar = 3,5-C6H3Me2, was converted to its fluorinated borane adduct, [(F5C6)3BPNb(N[Np]Ar)3]−. Upon reaction of the latter anion with CO2, formation of phosphaethynolate, [OCP]−, was confirmed, together with formation of borane-capped niobium oxo, (F5C6)3BONb(N[Np]Ar)3.Figure optionsDownload as PowerPoint slideHighlights
► A niobium phosphide anion complex was complexed with perfluorotriphenylborane.
► Carbon dioxide was transformed into the sodium salt of phosphaethynolate.
► Sodium phosphaethynolate was formed in good yield and isolated in pure form.
Journal: Polyhedron - Volume 32, Issue 1, 20 January 2012, Pages 10–13