CONCEPT QUESTION
(1) The three-component mixture of ferrocene, benzophenone, and dopamine shown below was loaded on the
column and eluted with 95:5 petroleum ether: diethyl ether. Using the Molecular View of the column provided: (a)
draw one molecule of each analyte in the correct relative position in the column, and (b) clearly show the relevant
intermolecular forces that explain the column elution order. You do not need to include solvent molecules.
top of column
H
Al---O---H
O
Al---O---H
O
Al---O---H
O
Al---O---H
O
Al---O---H
O
Al---O---H
O
Al---O---H
O
Al---O---H
O
Al---O---H
O
Al---O---H
O
Al---O---H
O
Al---O---H
O
Al---O---H
bottom of column
buret wall
O
HO
HO
NH2
Fe
buret wall
