Framework-isomerism:highly augmented copper(II) paddlewheel-based MOF with unusual (3,4)-net topology

The synthesis and structure of a new, highly augmented {Cu2} ‘paddlewheel’-based metal-organic framework (MOF) that is stabilized by tritopic benzoate ligands is reported. The structure adopts an uncommon, less-symmetrical (3,4)- connected net topology and represents a rare framework isomer of the extensively studied {Cu2}-based pto and tbo analogues. The concomitant formation of three isomeric forms using {Cu}2- ‘paddlewheel’ complexes and a single triangular, tri-functional ligand is unique and stems from the rotational flexibility of the benzoate moieties. Computational analyses support the structural studies and underline that this observed net topology can give rise to an exceptionally high surface area (>3500 m2/g), despite the triple-interpenetrated nature of the compound

Multimodal switching of a redox-active macrocycle

Molecules that can switch between multiple stable states in response to stimuli are promising for many applications, but are challenging to construct. Here, the authors design a resorcinarene switching manifold with multiple oxidation states and coupled charge-transfer states, which can access up to five distinct switch-states with unique optical outputs

Towards multifunctional lanthanide-based metal–organic frameworks

We report the synthesis, structure and physicochemical attributes of a new holmium(III)-based metal–organic framework whose 3Dnetwork structure gives rise to porosity; the reported structuretype can be varied using a range of different lanthanide ions to tunethe photophysical properties and produce ligand-sensitised nearinfrared (NIR) and visible light emitters

Luminescent Metallogels of Bis-Cyclometalated Alkynylgold(III) Complexes

A series of luminescent bis-cyclometalated alkynylgold­(III) complexes have been synthesized and characterized. Some of the complexes have been demonstrated to exhibit gelation properties driven by π–π stacking and hydrophobic–hydrophobic interactions. The gelation properties have been investigated in detail through variable-temperature UV–vis absorption and emission studies, and the morphology of the gels has also been characterized by scanning electron microscopy and transmission electron microscopy

Luminescent Metallogels of Bis-Cyclometalated Alkynylgold(III) Complexes

A series of luminescent bis-cyclometalated alkynylgold­(III) complexes have been synthesized and characterized. Some of the complexes have been demonstrated to exhibit gelation properties driven by π–π stacking and hydrophobic–hydrophobic interactions. The gelation properties have been investigated in detail through variable-temperature UV–vis absorption and emission studies, and the morphology of the gels has also been characterized by scanning electron microscopy and transmission electron microscopy