[3+2] Fragmentation of an [RP5Cl]+ Cage Cation Induced by an N-Heterocyclic Carbene

Authors


  • This work was supported by the Fonds der Chemischen Industrie (FCI, Liebig scholarship for M.H.H.) and the German Science Foundation (DFG, WE 4621/2-1).

Abstract

original image

The cage compound [DippP5Cl][GaCl4] (Dipp=2,6-diisopropylphenyl) reacts with an NHC (N-heterocyclic carbene) by an unprecedented [3+2] fragmentation of the P5+ core. This yields an imidazoliumyl-substituted P3 species featuring a triphosphaallyl anion motif and a neutral P2 compound. The mechanism of the fragmentation reaction was elucidated by means of experimental and quantum chemical methods.

Ancillary