Journal of the American Chemical Society p. 3297 - 3306 (1984)
Update date:2022-08-05
Topics:
Weber, Edwin
Csoregh, Ingeborg
Stensland, Brigitta
Czugler, Matyas
1,1'-Binaphthyl-2,2'-dicarboxylic acid (1) is demonstrated as a novel type of clathrate host whose main mode of action is derived from a combination of the steric barrier and the coordinative interaction principle which constitutes the new "coordinatoclathrate" strategy.Inclusion properties of the crystal lattice of 1 are revealed for a variety of uncharged organic guest molecules (30 examples), ranging from OH-, to NH-, to CH-acidic compounds such as alcohols, carboxylic acids, amides, and nitriles to rather unpolar compounds like bromobenzene and toluene.Marked discrimination selectivities in the clathrate formation from solvent mixtures are found in regard to the group functionality, the substitution pattern, and the molecular size of the guest species, making accessible a simple process for chemical compound separation.The stoichiometries and the increased-temperature as well as the reduced-pressure stabilities of the various clathrates are discussed.The principles of stucture of five different alcohol clathrates of 1 are determined with the aid of X-ray structure analysis at 273 K: 1*2MeOH (10)
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