carbene


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Related to carbene: Nitrene

carbene

[′kär‚bēn]
(organic chemistry)
A compound of carbon which exhibits two valences to a carbon atom; the two valence electrons are distributed in the same valence; an example is CH2.
References in periodicals archive ?
We weren't the first people who looked at heterocyclic carbenes as ligands," he says, "but we and a number of other people started to look at them at a very fundamental level.
In 1991, Arduengo reported the first stable crystalline carbene.
The basic framework of an N-heterocyclic carbene is a five-membered ring made of two nitrogen and three carbon atoms.
As reported in the journal Angewandte Chemie, the scheme is based on an N-heterocyclic carbene catalyst and a silane as the reducing agent.
Our research targets the synthesis of novel Ru-based metathesis catalysts which bear functionalized carbene moieties 2-5 which should enhance catalyst solubility in aqueous solvents for application in Ring Opening Metathesis Polymerization (ROMP) of water-soluble norbornene derivatives (Figure 1).
The metathesis catalysts are transition metal carbene catalysts.
Cowley (to whom the volume is dedicated) opens the volume with a review of his recent work in the area of carbene analogs.
Alternatively, related pincer-Pd complexes based on supporting N-heterocyclic carbene (NHC) ligands have been shown to behave as molecular catalysts.
Arrey's research interests include: (1) Chemical Education--Organic Chemistry and Methods of Learning and Teaching, (2) Synthesis, Characterization, Computational, and Reactivity of heterocyclic Carbene, Diazirine and Nitrene molecules.
A carbene contains a central carbon atom with two bonds, rather than carbon's typical four.
Nickel Complexes with Carbonyl, Isocyanide and Carbene Ligands (C.