Since the discovery of the first stable N-heterocyclic carbene (NHC) in the beginning of the
1990s, these divalent carbon species have become a common and available class of …

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 …

Carbenes have evolved from transient laboratory curiosities to a robust, diverse, and
surprisingly impactful ligand class. A variety of different carbenes have significantly …

The complex diberyllocene, CpBeBeCp (Cp, cyclopentadienyl anion), has been the subject
of numerous chemical investigations over the past five decades yet has eluded experimental …

A complex of a metal in its zero oxidation state can be considered a stabilized, but highly
reactive, form of a single metal atom. Such complexes are common for the more noble …

N-Heterocyclic carbenes (NHCs) are omnipresent ligands in coordination and
organometallic chemistry, which is reflected by myriads of applications involving NHC …

The synthesis of molecules that feature main-group elements in unusual oxidation states
and coordination environments is a primary pursuit of main-group chemistry. The p-block …

The metals of the s block of the periodic table are well known to be exceptional electron
donors, and the vast majority of their molecular complexes therefore contain these metals in …

The progress in experimental and theoretical research in the area of main group compounds
that possess dative bonds, which was made in the last decade, is summarized. The focus …

Conspectus Alkaline earth elements beryllium, magnesium, calcium, strontium, and barium
with an n s2 valence-shell configuration are usually classified as main-group elements that …