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[3+2] Fragmentation of an [RP 5 Cl] + Cage Cation Induced by an N‐Heterocyclic Carbene
Author(s) -
Holthausen Michael H.,
Surmiak Sabrina K.,
Jerabek Paul,
Frenking Gernot,
Weigand Jan J.
Publication year - 2013
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201302914
Subject(s) - carbene , fragmentation (computing) , chemistry , ion , cage , quantum chemical , medicinal chemistry , stereochemistry , crystallography , molecule , organic chemistry , catalysis , mathematics , combinatorics , computer science , operating system
The cage compound [DippP 5 Cl][GaCl 4 ] (Dipp=2,6‐diisopropylphenyl) reacts with an NHC (N‐heterocyclic carbene) by an unprecedented [3+2] fragmentation of the P 5 + core. This yields an imidazoliumyl‐substituted P 3 species featuring a triphosphaallyl anion motif and a neutral P 2 compound. The mechanism of the fragmentation reaction was elucidated by means of experimental and quantum chemical methods.