organic compounds
In two hydrated structures of bis(adeninium) zoledronate, the zoledronate anion displays its usual zwitterionic character, with a protonated imidazole ring; however, the ionization state of the phosphonate groups of the anions are different.
research papers
Three butylidene-linker models have been designed and synthesized. They show intramolecular folding in solution and also, more importantly, in the solid state. These folded conformations in the solid are mainly stabilized by interactions between arene groups.