Luminescent Open Metal Sites within a Metal–Organic Framework for Sensing Small Molecules

Abstract

Luminescent open metal sites within a microporous Eu(BTC) (see figure, BTC = benzene‐1,3,5‐tricarboxylate) metal–organic framework are used for binding and sensing small molecules. The small molecules, such as dimethyl formamide, acetone, and ethanol exhibit different enhancing and quenching effects on the luminescence intensity of Eu(BTC). These specific properties may allow the use of such frameworks as sensors for small molecules.

Layered exfoliable crystalline materials based on Sm-, Eu- and Eu/Gd-2-phenylsuccinate frameworks. Crystal structure, topology and luminescence properties

“…Particularly, their luminescence properties that enable these materials to be employed as sensors 1 , optical fiber lasers and amplifiers 2 , molecular thermometers 3 and electroluminescent materials 4 have received increasing attention. 5 MOFs offer a unique platform and methodology for the development of luminescent lanthanide materials not only because of some well described synthesis methods and resulting porosities, but also for certain degree of structural tenability.…”

A Comparison of the H2 Sorption Capacities of Isostructural Metal–Organic Frameworks With and Without Accessible Metal Sites: [{Zn2(abtc)(dmf)2}3] and [{Cu2(abtc)(dmf)2}3] versus [{Cu2(abtc)}3]

“…Porous MOFs that contain free space where guest molecules can be accommodated are of particular interest because they can be applied in gas storage [1][2][3][4] and separation, [4][5][6] selective adsorption and separation of organic molecules, [1, 7] ion exchange, [8] catalysis, [9] sensor technology, [1,10] and for the fabrication of metal nanoparticles.[11]Secondary building units (SBUs) with a specific geometry have often been employed [12] for the modular construction of porous MOFs as they make the design and prediction of molecular architectures simple and easy. In particular, {M 2 -(CO 2 ) 4 }-type paddlewheel clusters that can be formed from the solvothermal reaction of M 2+ ions and the appropriate carboxylic acid are widely used for the construction of porous frameworks.…”

Modeling adsorption equilibria of xylene isomers in a microporous metal–organic framework

“…Contrasting to zeolites, which have pores confined by tetrahedral oxide skeletons, the pores within MOFs can be systematically varied by the judicious choice of the metal-containing and/or organic ligands [19]. Due to their unusual features, MOFs are considered promising materials for gas storage, adsorption separations and catalysis [20][21][22][23][24][25][26][27][28][29][30][31][32].…”