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2-Fluoro-1,3,5-benzene-tricarboxylic acid (Fbtc) is used as new linker for metal–organic frameworks and leads to three MOFs UHM-31, -32 and -33.

A new amino substituted tricarboxylate linker and the new metal-organic framework Cu(3)(NH(2)btc)(2) have been synthesised. The new MOF shows good adsorption properties and is suitable for postsynthetic modification to form an amide functionalised framework.

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The adsorption of the biologically important signaling molecule nitric oxide (NO) on two metal−organic frameworks (MOFs), Cu 3 btc 2 and Cu 3 (NHEtbtc) 2 , has been studied by multinuclear solid-state NMR. N-Diazenium diolate (NONOate) formation as primary mode of NO adsorption in the latter MOF is concluded from 15 N, 1 H, and 13 C NMR spectra together with analysis of the 1 H spin−lattice relaxation time (T 1 ). Furthermore, NO adsorption at the open metal site of Cu 3 btc 2 as well as Cu 3 (NHEtbtc) 2 is also evident, indicating both physisorption and chemisorption of nitric oxide.

The building industry makes a great effort to reduce energy consumption. The use of nanotechnology is one of the approaches to surpassing the properties of conventional insulation materials. In this work, an industrial cost‐effective method to manufacture highly porous materials with excellent thermal insulation properties is described. The materials are prepared from polystyrene recovered from the building sector and electrospun as nanofiber‐based sheets. Varying electrospinning parameters allow controlling the morphology of the produced materials. The materials are obtained with differences in interfiber and inner‐fiber porosity and morphology. The thermal conductivity of the freestanding and compressed materials is evaluated. Those differences affect the insulation performance: the materials with higher interfiber porosity show better thermal insulation in the freestanding state. An increase of the inner‐fiber porosity leads to better insulation in the compressed samples. Insertion of carbon nanomaterials reduces the effects of the infrared Radiation. Nanofiber‐based insulation materials from the recycled expanded polystyrene (EPS) show thermal conductivity values of 20 to 25 mW/mK (ie, 20% to 30% below the thermal conductivity of the commercial EPS). The effect of integrating polystyrene nanofiber sheets into conventional wall‐building materials is also investigated in terms of thermal insulation. The nanofiber insulation sheets are sandwiched between two pieces of the building materials resulting in a drastic increase of the insulation effect. The materials have a great potential in using, for example, as thermal insulation for the restoration of historic buildings in the narrow central parts of the old towns.

We describe a non-conventional, MOF-based approach with modified linkers to fabricate 3D Bi2O3 supracrystals. The nanoparticle (NP) assembly exhibits bcc-packing, which is difficult to achieve with other methods. The NPs possess a very narrow size distribution. The individual NPs were synthesized inside the pores of a surface-mounted metal-organic framework (SURMOF) template via a photo-decomposition procedure. The supracrystals were thoroughly characterized using X-ray diffraction (XRD), infrared (IR) and Raman spectroscopy as well as high-resolution transmission electron microscopy (HR-TEM) and SAED (Selected Area Electron Diffraction). In order to achieve sharp size distributions of the NPs, the pores within the SURMOF were functionalized with amino (-NH2) functional groups acting as nucleation centers. MOFs lacking such additional functionalities, Cu3(BTC)2, yielded much broader size distributions. These findings provide a unique molecular design tool for creating nanometer-sized reaction compartments for the synthesis of supracrystals with packing types not accessible via self-assembly.