Hydrogen adsorption in Metal-Organic Frameworks is improved by using platinum and palladium on different carbon support: activated carbon or carbon nanofibres. Although, hydrogen adsorption is directly dependent of the specific surface area of the material, it is not the only factor contributing to the hydrogen adsorption, as presented in this work. Direct synthesis of metal-organic frameworks on supported Pt and Pd catalysts, reduces the surface

MOF-5 was efficiently and quickly synthesized by a new method: microwave-assisted synthesis under atmospheric pressure, affording a microporous material with large surface areas. Its physicochemical and textural properties are similar to those synthesized by convective solvothermal synthesis.

Reaction of [CuII(cyclam)](ClO4)2 or [NiII(cyclam)](ClO4)2 in DMF with aqueous 4-hydroxy-3-(4-sulfonato-1-naphthylazo)naphthalen-1-sulfonate disodium salt (carmoisine) yielded coordination polymers {[CuII(cyclam)](carmoisine dianion)(H2O)5}n and powder {[NiII(cyclam)](carmoisine dianion)}n, respectively (cyclam = 1,4,8,11-tetrazacyclotetradecane). They were characterized by powder X-ray diffraction, IR, Raman spectrometry and TGA.

A new metal-organic framework [Fe3O(OOC-C6H4-COO)(3)(H2O)(3)]Cl center dot(H2O)(x) was synthesized with a specific surface area of 2823 m(2)/g and a lattice parameter of 88.61 angstrom. Isostructural with MIL-101, this compound exhibits similar hydrogen adsorption properties, with maximum adsorption capacity of 5.1wt.% H at 77 K. The adsorption enthalpy of hydrogen for MIL-101 and ITIM-1 (MIL-101Fe) at zero coverage was calculated for a wide temperature

Retention indices for some precursors of peraza crown ethers were determined by reversed phase high-performance thin layer chromatography on RP-18 plates with methanol-water in different volume proportions as mobile phase. The Log P values for the same compounds were calculated using different computer programs: SciQSAR, SciLogP, Chem3D Ultra 8.0, XLOGP (based on atom contributions), Chemaxon and KOWWIN (based on atom/fragment contributions), cLogP

A driving force for the growing interest in nanoassemblies is the use of nanoparticles linked to organic molecules. The goal of our research is to investigate the coupling of gold and silver nanoparticles (GNP and AgNP) with porphyrins molecules. We prepared water-soluble GNP and AgNP by reducing the noble metal complex salt with sodium citrate. The exchange of the initial ligand (citrate ions) with porphyrins formed hybrid nanostructures and change

The synthesis of new functionalized macropolycyclic ligands using triazacyclononane and tetraazacyclododecane as precursors is presented.

A convenient method for the preparation of peraza crown ethers in a one-pot synthesis in the presence of KF/Al2O3 is presented.

Crystal-to-crystal dihydrogen to covalent bonding transformation of complexes of N,N ',N ''-tris-(2-hydroxyethy)-triazacyclononane(THECN) and N,N ',N ''-tris-(6-hydroxy-benzyl)-triazacyclononone (THBCN) with NaBH4 is presented. As a result, materials with extended crystalline covalent solids with various potentialy-practically application were obtained.

The 2 NaBH4. {p-xylylene-bis{(1',4',7'-tris-hydroxyethyl)-cyclen}} complex 1 after the removing of recrystallization solvent, shows catalytic activity in Michael addition reaction.