We describe a new approach to synthesize two-dimensional (2D) nanosheets from the bottom-up. We functionalize redox-active superatoms with groups that can direct their assembly into multidimensional solids. We synthesized Co6Se8[PEt2(4-C6H4COOH)]6 and found that it forms a crystalline assembly. The solid-state structure is a three-dimensional (3D) network in which the carboxylic acids form inte...

Two common radical anion reductants, potassium benzophenone ketyl (K(Ph(2)CO)) and potassium naphthalenide (K(2)(C(10)H(8))(2)(THF)), have been isolated and characterized for the first time in solvent-free form or with low solvent content, allowing their use as pure solid reactants in preparative redox chemistry in accurate stoichiometric amounts.

The incorporation of tetraoxolene radical bridging ligands into a microporous magnetic solid is demonstrated. Metalation of the redox-active bridging ligand 2,5-dichloro-3,6-dihydroxy-1,4-benzoquinone (LH2) with Fe(II) affords the solid (Me2NH2)2[Fe2L3]·2H2O·6DMF. Analysis of X-ray diffraction, Raman spectra, and Mössbauer spectra confirm the presence of Fe(III) centers with mixed-valence ligan...

The video segmentation is an important technique for improvement of quality of video on the basis of segmentation. Significance of this segmentation is analysis of video as deformation Video quality improvement and blurring of video. Various authors improve the quality of video using sliding window technique and using different noise filter but all these method are not accurate and suffering fo...

Electrochemical analysis allows in situ characterization of solid oxide electrochemical cells (SOCs) under operating conditions. However, the SOCs that have been analyzed in this way have ill-defined or uncommon microstructures in terms of porosity and tortuosity. Therefore, the nano-scale characterization of SOCs with respect to three-phase boundaries has been hindered. We introduce novel in s...

The present research work was focussed on the preparation as well as the evaluation of Aceclofenac solid dispersions for analgesic, anti-inflammatory and immunosuppressant activities. Solid dispersions were formulated using cros-carmellose sodium as polymer in different ratios. The solid dispersions were prepared using physical mixture, solvent evaporation and kneading techniques. The solid dis...

Carbamazepine is a water-insoluble antiepileptic drug. Being a BCS class-II drug, its absorption is dissolution rate limited. Solid dispersions were prepared to enhance the dissolution rate of the drug. Crospovidone and croscarmellose sodium were used as the hydrophilic carriers. Solid dispersions showed a remarkable enhancement in the dissolution rate of the drug. In the present research work,...

Bimetallic nanosized solids with acid and redox properties for catalytic activation of C–C and C–H bonds Jose R. Cabrero-Antonino,a María Tejeda-Serrano,a Manuel Quesada,a Jose A. VidalMoya,a Antonio Leyva-Pérez,a* and Avelino Corma.a* a Instituto de Tecnología Química. Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas. Avda. de los Naranjos s/n, 46022, Valenci...

The synthetic versatility and the potential application of metalloporphyrins (MP) in different fields have aroused researchers' interest in studying these complexes, in an attempt to mimic biological systems such as cytochrome P-450. Over the last 40 years, synthetic MPs have been mainly used as catalysts for homogeneous or heterogeneous chemical reactions. To employ them in heterogeneous catal...

Solid-state interfaces play a major role in a variety of material properties. They are especially important in determining the behavior of nano-structured materials, such as metallic multilayers. However, interface structure and properties remain poorly understood, in part because the experimental toolbox for characterizing them is limited. Neutron reflectometry (NR) offers unique opportunities...