- Methylenes
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For the Anesthetic agent, see A.C.E. mixture#Other preparations.
Methylene is a chemical species in which a carbon atom is bonded to two hydrogen atoms. Three different possibilities present themselves:
- the -CH2- (methanediyl) substituent group: e.g., dichloromethane (also known as methylene chloride).
- the =CH2 (methylidene) substituent group: e.g., methylenecyclopropene.
- the :CH2 molecule: A carbene known as methylene. A carbene is a highly reactive organic molecule having a divalent carbon atom with six valence electrons.
Methylene groups in a chain or ring contribute to its size and lipophilicity. Methylene was also the old original name for methanol.
See also
- Methyl
- Methine
References
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