Single-crystal to single-crystal transformations - Guest removal and substitution in a robust solvent-templated metallocyclic compound

Abstract

The formation, structure, and single-crystal to single-crystal transformations of the dinuclear metallocycle [Ag2L 2](PF6)22CH3CN (L ≤ 2,3,5,6-tetrafluoro-1,4-bis(2-methylimidazole-1-yl-methyl)benzene) are described. The acetonitrile guest molecules can be removed without loss of single crystallinity to afford a porous material. CO2 sorption isotherms were recorded at various temperatures and the structures and sorption behaviour of the crystals are compared with those of a previously reported analogous system. Upon exposure to acetone vapour, the desolvated crystals undergo a single-crystal to single-crystal transformation to form the acetone solvate. © CSIRO 2010.</p