Tunable emission from a porous metal–organic framework by employing an excited-state intramolecular proton transfer responsive ligand

Abstract

A novel molecular design concept to control the emission of a metal-organic framework, {Mg(DHT)(DMF)(2)}(n), (DHT: 2,5-dihydroxyterephthalate), based on excited state proton transfer (ESIPT) of the organic linker, DHT, is demonstrated. The framework unveils permanent porosity and exhibits ligand-based multicolor emission that can be tuned and well controlled by the solvent molecules in solution as well as in the solid state.

Simultaneous binding of a cyclophane and classical intercalators to DNA: observation of FRET-mediated white light emission

“…[3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] Among these scaffolds, DNA-cationic surfactant complexes have emerged as intriguing candidates for optoelectronic applications in recent years because of their unique material properties, including solubility in organic solvents and the ability to form thermally stable, transparent films. 1,2 FRET based fluorescence colour tuning, with fluorophores incorporated into various scaffolds including polymers, biomolecules, micelles, supramolecular assemblies and nanoparticles, is a widely investigated approach for white light generation.…”

Synthesis and crystallographic characterisation of Mg(H 2 dhtp)(H 2 O) 5 ·H 2 O

“…A search of the Cambridge Crystallographic Data Centre reveals 5 different coordination polymers derived from magnesium and the di-anion of 2,5-dihydroxyterephthalate, in addition to the aforementioned CPO-26-Mg and CPO-27-Mg, all of which contain a three-dimensional coordination framework. One was prepared from DMF, [26] one from DMF in the presence of NEt 3 , [27] and one from aqueous DMA, [28] whilst the remaining two were prepared from DMA or aqueous N-methyl pyrrolidone. [29] This is the first example of a material prepared from a predominately aqueous solution.…”

Shape Controlled Hierarchical Porous Hydrophobic/Oleophilic Metal‐Organic Nanofibrous Gel Composites for Oil Adsorption

“…Fluorinated graphene oxide (FGO) is hybridized with an Al-based MOG, comprised of Al 3+ cations and 1,3,5-benzene-tricarboxylate. [11][12][13][14][15][16][17][18][19][20] However, it remains challenging to precisely control the functionality of microporous MOFs and moisture sensitive properties of these materials which meet the different application desires in industrial practice. Thus, the composite morphology emerged synergistically and is very different from the features of the inherent components MOG and FGO.…”