Single crystal-to-single crystal transformations induced by ammonia–water equilibrium changes

Reversible single crystal-to-single crystal transformations were observed for the Ni(ii) complex with 5-methyl-5-phenylhydantoin.

Threading the needle: guest transport in a versatile 0D porous molecular crystal

Porous host crystals of the metallocycle [Cu₂(1,3-bis(imidazol-1-ylmethyl)-2,4,6-trimethylbenzene)₂Cl₄]·2CH₃OH are permeable to a series of small organic guests despite their lack of permanent channels.

Single-crystal to single-crystal guest exchange and phase transformations in a porous metallocycle

The acetonitrile guest molecules in this porous metallocycle can be exchanged for different solvent molecules in a single-crystal to single-crystal manner. These guest exchanges are accompanied by a phase transformation in the solid state.