Ether molecule encircling a sodium ion

Ether molecule encircling a sodium ion

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Credit: KENNETH EWARD/BIOGRAFX/SCIENCE PHOTO LIBRARY

Caption: Crown ether. Molecular graphic of a crown ether molecule encircling a sodium ion. Carbon atoms are green, oxygen red, hydrogen white. Crown ethers are powerful solvating agents used to make ionic compounds dissolve in non-aqueous solutions (such as sodium ions in benzene). The crown ether molecule consists of a ring of ethylene glycol units with the general formula (-OCH2CH2)n. They are named x-crown-y, where x is the total number of atoms in the ring and y the number of oxygens. This example is 18-crown-6, a cyclic hexamer of ethylene glycol. The inside of the ring while the exterior has hydrocarbon properties.

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Keywords: chemical, chemistry, compound, compounds, crown, crown ethe, crown ether, ether, in crown ether, ion, molecular, molecular graphic, molecule molecules, organic, sodium ion, solvating agent

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