Abstract

The reactions of a barrel-like cyclic host molecule (decamethylcucurbit [5]uril (MeCuc5)) and decavanadate salts (sodium or ammonium decavanadate (M6[V10O28], M = Na+ or NH4+)) in water at room temperature gave four novel organic−inorganic hybrids, that is, two 2D ladder-like structures, a 1:2 complex, and a one-dimensional infinitely linear chain. Carbonyl oxygen atoms at the portals of the MeCuc5 molecules coordinate to cations (Na+ or NH4+) at the center or corner of the portals, and the resulting cationic organic species and decavanadate anions (HV10O285− and H2V10O284−) interact though electrostatic interaction and hydrogen bonds in the crystals.

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