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A cage hybrid (C-Cage-PB) was developed by electrostatic complexation of a quaternary ammonium cage (C-Cage + ) and an anionic inorganic Prussian blue (PB - ). Given the unique synergy of the two parts, such a cage hybrid can be used as a promising platform for the efficient removal of toxic compounds in wastewater through adsorption, delivery or catalytic degradation via a Fenton oxidation reaction. In addition, C-Cage-PB can encapsulate Pd clusters, which amplifies the function of the hybrid for enhanced catalytic performance in the sequential degradation of toxic organic compounds and heavy metal pollution in wastewater treatment.

For the first time, high surface-area hierarchical hollow octahedral carbon cages have been successfully fabricated by carbonization of a metal-organic framework, MIL-100(Al), followed by subsequent controlled acid etching, which exhibit significant CO2 and H2 adsorption capacities.

A metal-organic framework (MOF) featuring intriguing Borromean entanglement exhibits a unique mechanochromic luminescence with on-off switching. The concomitant excitation wavelength-dependent emission behavior can be utilized to tune the emission color from violet to orange.

For the first time, MOF-derived hierarchically porous carbons with controlled pore structures for on-demand applications have been achieved via a double-template approach.

Meso-/macropores have been induced as additional second-order structures by the assembly of particles of a microporous zeolitic imidazolate framework, ZIF-8, prepared by ultrasonication. Simple carbonization of ZIF-8 affords a 3-dimensional hierarchically porous carbon framework with micro-, meso- and macropores, which exhibits the best performance ever reported as a supercapacitor electrode.

A bipyridinium ligand with a charge separated skeleton has been introduced into a metal-organic framework to yield a porous material with charge-polarized pore space, which exhibits selective adsorption for polar guest molecules and can be further used in gas chromatography for the separation of alcohol-water mixtures.

An excitation-wavelength-dependent luminescence behavior of a bipyridinium derivative, together with its luminescence switching between single- and dual-emissions upon reversible solid state structural transformation, has been presented.

Eu(III) ions have been introduced into a photoactive viologen system to yield a polyrotaxane-like metal-organic framework, which exhibits reversible photochromism and luminescence modulation with a non-destructive readout capability in the solid state., (This journal is © The Royal Society of Chemistry 2011)

The reaction of 2-hydroxypyrimidine-4,6-dicarboxylic acid (H(3)hpdc) with CuCl(2) under different temperatures gives a chain-like compound [Cu(2)(hpdc)(OH)(H(2)O)(4)]·H(2)O and a layer-like compound [Cu(2)(hpdc)(OH)(H(2)O)], which exhibit structural interconversion and tunable magnetic properties upon dehydration and hydration., (This journal is © The Royal Society of Chemistry 2011)

Two isomorphous 2D flexible metal-organic frameworks with [Cd(2)(μ(2)-X)(2)] (X = Cl or Br) units and dynamic 1D channels, which show tunable or switchable fluorescence signals in response to the loss of guest water molecules, have been synthesized and characterized. Especially, the chloride-bridged complex is found to be a selective fluorescence sensor for MeCN.

Two Mn(II) coordination complexes with considerable difference in photochromism and chirality have been constructed from the photoactive 1-(4-carboxybenzyl)-4,4'-bipyridinium ligand upon adjusting the reaction solvents.