Volume 52, Issue 42 pp. 11078-11082
Communication

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

Dr. Michael H. Holthausen

Dr. Michael H. Holthausen

Professur für Anorganische Koordinationschemie, TU Dresden, 01062 Dresden (Germany)

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Sabrina K. Surmiak

Sabrina K. Surmiak

Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster (Germany)

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Paul Jerabek

Paul Jerabek

Fachbereich Chemie, Philipps-Universität Marburg, 35032 Marburg (Germany)

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Prof. Dr. Gernot Frenking

Prof. Dr. Gernot Frenking

Fachbereich Chemie, Philipps-Universität Marburg, 35032 Marburg (Germany)

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Prof. Dr. Jan J. Weigand

Corresponding Author

Prof. Dr. Jan J. Weigand

Professur für Anorganische Koordinationschemie, TU Dresden, 01062 Dresden (Germany)

Professur für Anorganische Koordinationschemie, TU Dresden, 01062 Dresden (Germany)Search for more papers by this author
First published: 22 August 2013
Citations: 53

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).

Graphical Abstract

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.

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