Abstract Discovered in 2005, cyclic (alkyl)(amino) carbenes (CAACs) are among the most
nucleophilic (σ donating) and also electrophilic (π‐accepting) stable carbenes known to …

Shortly after their discovery at the end of the 80s, stable singlet carbenes have been
recognized as excellent ligands for transition metal based catalysts, and as organo-catalysts …

This personal account summarizes our work, beginning with the discovery of the first stable
carbene in 1988 up until the recent isolation of mesoionic carbenes. It explains why we have …

Radicals are an important class of species which act as intermediates in numerous chemical
and biological processes. Most of the radicals have short lifetimes. However, radicals with …

Ein Kennzeichen der seit 2005 bekannten cyclischen Alkylaminocarbene (CAACs) ist ihre
ausgeprägte Nucleophilie (σ‐Donor) und zugleich Elektrophile (π‐Akzeptor). Diese …

Sodium phosphaethynolate, Na (OCP), reacts as a P− transfer reagent with the imidazolium
salt [DippNHC–H][Cl][DippNHC= 1, 3-bis (2, 6-diisopropylphenyl) imidazol-2-ylidene] to give …

Carbenes, including N‐heterocyclic carbene (NHC) ligands, are used extensively to
stabilize open‐shell transition metal complexes and organic radicals. Yet, it remains …

Imidazolin-2-imines represent a particularly basic and nucleophilic subclass of guanidines,
and a large variety of these N-donor ligands have become available, inter alia, by the …

The imidazolin-2-imino group is an N-heterocyclic imino functionality that derives from the
class of compounds known as guanidines. The exocyclic nitrogen atom preferably bonds to …

A variety of transition metal–nitrido complexes (metallonitrenes) have been isolated and
studied in the context of modeling intermediates in biological nitrogen fixation by the …