Crown Ether

Name:
Crown Ether
Detailed information:
A cyclic molecule in which ether groups (polyethers) connected by dimethylene linkages are coordinated to a centrally located metal atom via the oxygen atoms of the ethers, which function as ligands (electron donors). Such compounds have strong complexing or chelating capabilities. In some types, silicon replaces the dimethylene linkages. They were so named because their molecular models resemble a crown.See Porphyrin; Chelate.