Tuning mechanism in a two-component columnar host system composed of 1,2-diphenylethylenediamine and 1,1'-binaphthyl-2,2'-dicarboxylic acid.

In a two-component columnar host system composed of racemic (rac)-1,2-diphenylethylenediamine and rac-1,1'-binaphthyl-2,2'-dicarboxylic acid, a cavity tuning mechanism resulted from changes in the structure of the columns using a specific combination of the following four molecules: (1R,2R)-1, (1S,2S)-1, (R)-2, and (S)-2.