This month’s Crystal Clear festures two different forms of dabcoHI ([C6H13N2]+I−): an unsolvated crystal and a solvate in equilibrium in the diamond-anvil cell.
The striking image is taken from an article in the Molecular Solids at Extreme Pressure themed issue by Andrzej Katrusiak and Anna Olejniczak (Adam Mickiewicz University, Poland).
Pressure induced transformations of 1,4-diazabicyclo[2.2.2]octane (dabco) hydroiodide: diprotonation of dabco, its N-methylation and co-crystallization with methanol
Anna Olejniczak and Andrzej Katrusiak, CrystEngComm, 2010, Advance Article
DOI: 10.1039/C001379J