Pseudodimorphism of trans-9,10-Dihydro-9,10-ethanoanthracene-11,12-dicarboxylic Acid Clathrates with Ethyl and Butyl Acetate

ABSTRACT

At room temperature trans-9,10-dihydro-9,10-ethanoanthracene-11,12-dicarboxylic acid forms different clathrates with ethyl and butyl acetate in a 1:1 host-guest ratio. Increasing the formation temperature up to 40°C gives rise to pseudodimorphic clathrates with half the content of the guest component. All the clathrates studied feature intersecting channels of guest molecules within their structures.

Keywords:

• clathrates
• crystal structures
• host-guest compounds
• pseudodimorphs

Acknowledgments

This work was supported by INTAS (Grant 2000-053) and Uzbekistan Center for Science and Technology (Grant F33). L. I. thanks the Deutscher Akademischer Austauschdienst (DAAD) for a research fellowship.