Enclathration of morpholinium cations by Dianin's compound: Salt formation by partial host-to-guest proton transfer

In spite of partial deprotonation upon inclusion of morpholine, Dianin's compound maintains its well-known clathrate structure in the solid state. © The Royal Society of Chemistry 2005.</p

Breaking the trigonal host packing motif of Dianin's compound

Crystallisation of Dianin's compound (DC) together with two organic amines (piperazine and piperidine) produces co-crystals of 2:1 DC-piperazine and 1:1 DC-piperidine, respectively. The structures of these adducts contrast sharply with that of the well-known clathrate structure of DC in which organic guests are generally included in ratios of 3:1 or 6:1 DC-guest. © The Royal Society of Chemistry 2009.</p

Co-crystallization of ionic and neutral supramolecular motifs derived from identical components

The concept of co-crystallization usually applies to the coexistence of two or more different types of molecule in the same crystal, but at a higher level of complexity it is possible to define a parallel concept where a crystal is composed of two or more recognizably different supramolecular assemblies. We describe the structure of an adduct formed between Dianin's compound and ethylene diamine. This structure consists of two recognizably different supramolecular assemblies of these components. Furthermore, these two forms have each previously been observed to exist in isolation. Therefore, it is reasonable to make the comparison with conventional co-crystals where two or more compounds that can exist separately form a crystalline adduct (often termed a "molecular complex"). © 2009 American Chemical Society.</p

Templated polar order of a guest in a quasiracemic organic host

A quasiracemic mixture of Dianin's compound and its thiol derivative enforces additional anisotropy of the guest-accessible space, thus facilitating a net polar arrangement of guest molecules; guest alignment is rationalized in terms of van der Waals volume considerations. © 2010 The Royal Society of Chemistry.</p

Organic crystals absorb hydrogen gas under mild conditions

We have studied the hydrogen sorption on three well-known organic hosts that possess vacant lattice voids large enough to accommodate H2 molecules. © The Royal Society of Chemistry 2005.</p

Solid-state self-inclusion: The missing link

Molecular cannibalism: The concept of self-inclusion in the solid state can be subjective. A host-guest system is prepared in which the same compound (2,7-dimethyl-octa-3,5-diyne-2,7-diol) unequivocally plays both roles simultaneously. (Figure Presented). © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.</p

Construction of one- and two-dimensional coordination polymers using ditopic imidazole ligands

A series of ditopic imidazole functionalised ligands have been investigated for their propensity to form one- and two-dimensional coordination polymers with a range of metals. We show that ditopic imidazole ligands have the versatility to be exploited in the formation of a variety of coordination polymers. © 2006 Elsevier B.V. All rights reserved.</p