New types of hybrid solids of tetravanadate polyanions and cucurbituril

摘要: Three inorganic–organic hybrid solids based on tetravanadate polyanions, {V4O12}4− and cucurbituril, Me10Q[5] Q[5], namely (NH4)4[(V4O12)·(Me10Q[5]@0.5H2O)2]·∼13H2O (1), Li4(H2O)5[(V4O12)·(Me10Q[5]@H2O)2]·∼20H2O (2), Na4(H2O)2[(V4O12)·(Q[5])2]·∼15H2O (3), have been synthesized under hydrothermal conditions. In the structure of compound 1, two {Me10Q[5]@0.5H2O} moieties connect to one cluster through an NH4+ counter-cation form a trimer unit, which further forms three-dimensional (3D) supramolecular architecture via extensive hydrogen bonds (H-bonds). Compound 2 contains one-dimensional (1D) covalently bonded chain built by alternate {Me10Q[5]@H2O} {Li2O4(H2O)3}2+ dimer units. The anionic units bond every another unit sitting multi-uncoordinated water molecules H-bonds. 3 is from clusters, sodium cations into two-dimensional (2D) covalent wavy structure, showing interesting connection between building units, packed 2D plentiful It has found that dramatically affect coordination polyanion cucurbituril.