Transition metal carbene complex | Wikipedia audio article
Channel: wikipedia tts
Date: 2019-01-13

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Transition_metal_carbene_complex


00:01:06 1 Classification of carbene complexes
00:02:21 1.1 Fischer carbenes
00:04:03 1.2 Schrock carbenes
00:05:22 1.3 iN/i-Heterocyclic carbenes
00:06:48 1.4 Carbene radicals
00:07:38 2 Applications of carbene complexes
00:08:48 3 History
00:09:28 4 See also



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SUMMARY
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A transition metal carbene complex is an organometallic compound featuring a divalent organic ligand. The divalent organic ligand coordinated to the metal center is called a carbene. Carbene complexes for almost all transition metals have been reported. Many methods for synthesizing them and reactions utilizing them have been reported. The term carbene ligand is a formalism since many are not derived from carbenes and almost none exhibit the reactivity characteristic of carbenes. Described often as M=CR2, they represent a class of organic ligands intermediate between alkyls (−CR3) and carbynes (≡CR). They feature in some catalytic reactions, especially alkene metathesis, and are of value in the preparation of some fine chemicals.