methylenelänk
Methylenelänk is a term used in organic chemistry to describe a methylene group (-CH2-) that bridges two other atoms or groups within a molecule. This linking function is common in a wide variety of organic compounds. The methylene group itself consists of a carbon atom bonded to two hydrogen atoms. When it acts as a methylenelänk, it is typically attached to two other non-hydrogen atoms, thus forming a larger molecular structure.
Examples of molecules containing a methylenelänk are abundant. In ethers, the oxygen atom can be linked to