Aza-crown ether

Ring molecule with several amine (–N– or >N–) groups

In organic chemistry, an aza-crown ether is an aza analogue of a crown ether. That is, it has a nitrogen atom in place of each oxygen atom around the ring. While the parent crown ethers have the formulae (CH2CH2O)n, the parent aza-crown ethers have the formulae (CH2CH2NH)n, where n = 3, 4, 5, 6. Well-studied aza crowns include triazacyclononane, cyclen, and hexaaza-18-crown-6.

This keyword could refer to multiple things. Here are some suggestions: