Steering of the host conformation and host lattice by guest molecules in organic ammonium clathrates

Abstract

Systematic variations in the design of organic bis(ammonium) salts lead to a new, versatile host system with remarkable inclusion capacity; the X-ray structure analysis of the N,N′-(azulen-1,3-ylenedimethyl)bis(trimethylammonium) di-iodide (1)·butanol adduct, together with crystallographic data of further clathrates, demonstrates that the host conformation is essentially steered by the enclosed guest molecules, producing well adapted cavity proportions.