Solid state organic amine detection in a photochromic porous metal organic framework

Abstract

A new Mg(ii) based porous metal–organic framework (MOF) has been synthesized from naphthalenediimide (NDI) chromophoric unit containing linker. This MOF (Mg–NDI) shows instant and reversible photochromism as well as solvatochromic behavior. Due to the presence of electron deficient NDI moiety, this MOF exhibits selective organic amine (electron rich) sensing in solid state.

Metal–organic framework nanosheets for fast-response and highly sensitive luminescent sensing of Fe3+

“…[14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] The pore sizes/shapes of MOFs can be systematically optimized to best match with the metal ions. [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] Although extensive research has been carried out on bulk-size MOFs, those exhibiting high surface area are still of few percentage, due to the labile coordination geometries of metal-oxo clusters and framework interpenetration, which limits their close interactions with targeted analytes. 6,8 However, most of the current researches on MOF fluorescent probes are focused on the design and synthesis of bulk-size MOFs.…”

Flexible photochromic Ag:TiO2 thin films fabricated by ink-jet and flexography printing processes

“…2,7-9 Different strategies have been proposed to fabricate such materials and one of them, based on the use of mesoporous lms of amorphous TiO 2 , has proven to give rise to a high color stability. [1][2][3][4][5][6][7][8][9][13][14][15] However, if they could be fabricated on any kind of substrate, especially on exible substrates like plastic sheets, their use could be of interest for smart cards and packaging manufacturing. Under UV light exposure, the photocatalytic behavior of TiO 2 3 permits the reduction of silver ions, which nally form Ag nanoparticles (NPs) with various shapes and sizes directly surrounded by TiO 2 or other compounds contained in the pores.…”

Fluorescent Recognition of Functional Secondary Amines in the Fluorous Phase

“…[1][2][3][4][5][6] Detection of amines has become important in monitoring pollution in environment, occupational safety, food freshness and many biological processes, and a number of analytical methods have been developed. [8][9][10][11][12][13][14][15] However, it is still quite a challenge to distinguish various types of amines by fluorescence measurement. [8][9][10][11][12][13][14][15] However, it is still quite a challenge to distinguish various types of amines by fluorescence measurement.…”