Scopul nostru este sprijinirea şi promovarea cercetării ştiinţifice şi facilitarea comunicării între cercetătorii români din întreaga lume.
This report explores the potential of the unconventional hydrogen bonds between the hydridic hydrogens in X-BH3- (X=H, CN) and traditional OH or NH proton donors (dihydrogen bonds) to serve as preorganizing interactions for the topochemical assembly of covalent materials. Evidence for such topochemical control in the reaction B-H×××H-X ® B-X + H2 was obtained in studies of the solid state structures and reactivities of N-[2-(6-aminopyridyl)]-acetamidineRead more
The first mechanistic investigation of a topochemical dihydrogen to covalent bonding conversion is presented. Solid state decomposition of the LiBH4×TEA (TEA = triethanolamine) dihydrogen-bonded complex into a covalent material was studied using 11B solid state MAS NMR, FT-IR, XRD, and optical microscopy. The majority of this solid state reaction occurs by nucleation and two-dimensional growth of the covalent product nuclei. Variable temperatureRead more