'Janus-type' organopotassium chemistry observed in deprotonation of mesoionic imidazolium aminides and amino N-heterocyclic carbenes: coordination and organometallic polymers

Andreas A Danopoulos; Pierre Braunstein

doi:10.1039/c3cc49517e

'Janus-type' organopotassium chemistry observed in deprotonation of mesoionic imidazolium aminides and amino N-heterocyclic carbenes: coordination and organometallic polymers

Chem Commun (Camb). 2014 Mar 21;50(23):3055-7. doi: 10.1039/c3cc49517e.

Authors

Andreas A Danopoulos¹, Pierre Braunstein

Affiliation

¹ Institute for Advanced Study (USIAS), and Laboratoire de Chimie de Coordination, Institut de Chimie (UMR 7177 CNRS), Université de Strasbourg, 4 rue Blaise Pascal, 67081 Strasbourg Cedex, France. danopoulos@unistra.fr.

PMID: 24515245
DOI: 10.1039/c3cc49517e

Abstract

The first direct observation of the tautomeric equilibrium between mesoionic imidazolium aminides (IA) and amino NHCs (AC) shows its dependence on the aminide substituent. A potassium (imidazol-2-ylidenyl)(anilide), an ion-pair with the 'free' anionic NHC, and potassium organometallic polymers, with the repeat unit exhibiting 'Janus-type' coordination, are reported.