Discovered as organometallic curiosities in the 1970s, carbene radicals have become a
staple in modern-day homogeneous catalysis. Carbene radicals exhibit nucleophilic radical …

The formal combination of a carbene and an organometallic fragment yields carbene
complexes. They are commonly classified as Fischer-and Schrock-type complexes. While …

This tutorial explores the diversity and characteristics of C-donor ligands. Particular
emphasis is put on the conceptual design of the electronic properties for applications in …

The mechanism of cobalt (II)− porphyrin-mediated cyclopropanation of olefins with
diazoesters was studied. The first step reaction of cobalt (II)− porphyrin with ethyl …

In this Forum contribution, we highlight the radical-type reactivities of one-electron-reduced
Fischer-type carbenes. Carbene complexes of group 6 transition metals (Cr, Mo, and W) can …

Metal carbene complexes have been at the forefront of organic and organometallic
synthesis and are instrumental in guiding future sustainable chemistry efforts. While …

In the context of homogeneous catalysis, open-shell systems are often quite challenging to
characterize. Nuclear magnetic resonance (NMR) spectroscopy is the most frequently …

The seminal report by Hegedus in 1982, showing that alkoxychromium (0) carbenes reacted
with imines under bright Colorado sunlight to yield β-lactams, marked the beginning of a key …

Ligand noninnocence has been well-established for transition metal complexes containing
diatomics such as NO and O 2, and bidentate chelates like quinones/semiquinones …

To probe the possibility that carbodicarbenes (CDCs) are redox active ligands, all four
members of the redox series [Fe (1) 2] n+ (n= 2–5) were synthesized, where 1 is a neutral …