Hexachloroplatinate (IV) anion-induced cucurbit[5]uril and cucurbit[8]uril supramolecular assemblies with linear channels

Two Q[n]-based porous compounds, Q[5]center dot[PtCl6](2-)center dot 2H(3)O center dot 12H(2)O and 2Q[8]center dot[PtCl6](2-)center dot 2H(3)O center dot 74H(2)O in cooperating the hexachloroplatinate(IV) anion ([PtCl6](2-)) as an inorganic structure directing agent are demonstrated. The driving forces for the formation of such novel Q[n]-based porous compounds are considered to be the outer surface interactions of Q[n]s, including dipole interactions between Q[n]s and ion-dipole interactions between [PtCl6](2-) anions and Q[n]s. Moreover, the Q[5]-based porous compound displays absorption distinctness for tetrachloromethane, whereas the Q[8]-based porous compound displays absorption distinctness for methanol. (C) 2016 Elsevier B.V. All rights reserved.