dicarbene
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Persistent carbene — A stable carbene: isolated 1,3 dimesitylimidazol 2 ylidene in a Schlenk flask (stir bar also present). A persistent carbene (also known as stable carbene or Arduengo carbene) is a type of carbene demonstrating particular stability. The best known … Wikipedia
Carbene — In chemistry, a carbene is a highly reactive organic molecule containing a carbon atom with six valence electrons and having the general formula: R1R2C: (two substituents and two electrons). [Organic Chemistry R.T Morrison, R.N Boyd pp 473 478]… … Wikipedia
phenylenedicarbene — noun Any dicarbene based on a phenylene moiety 2006 H. Yuge et al, The first metalloporphyrin dimer linked by a bridging phenylenedicarbene ligand [ … Wiktionary
