Author: eletronicospopular

Conformational and vibrational reassessment of solid paracetamol. Abstract This work provides an answer to the urge for a more detailed and accurate knowledge of the vibrational spectrum of the widely used analgesic/antipyretic drug commonly known as paracetamol. A comprehensive spectroscopic analysis – including infrared, Raman, and inelastic neutron scattering (INS) – is combined with a…

Inelastic neutron scattering study of reline: shedding light on the hydrogen bonding network of deep eutectic solvents Abstract The solids choline chloride and urea, mixed in a 1 : 2 molar proportion, form the iconic deep eutectic solvent “Reline”. A combination of computational and vibrational spectroscopy tools, including inelastic neutron scattering (INS), have been used…

Studies on polymorph conversion in a new cyclodextrin inclusion compound. Abstract A novel beta-cyclodextrin (beta CD) inclusion compound was prepared using 4-phenylpyridine-N-oxide (PPNO) as the organic guest. The inclusion compound, beta CD.PPNO, was characterised both in solution and in the solid state using numerous techniques. H-1 NMR in aqueous solution allowed the determination of a…

Modelling the luminescence of extended solids: an example of a highly luminescent MCM-41 impregnated with a Eu3+ beta-diketonate complex. Abstract A regular MCM-41 type mesostructured silica was used as a support for the incorporation of the highly luminescent tris(β-diketonate) complex Eu(tta)3ephen yielding the hybrid MCM–Eu material. Suitable characterization by powder X-ray diffraction (XRD), thermogravimetric analyses…

Effect of the Cation on the Interactions between Alkyl Methyl Imidazolium Chloride Ionic Liquids and Water. Abstract A systematic study of the interactions between water and alkyl methyl imidazolium chloride ionic liquids at 298.2 K, based on activity coefficients estimated from water activity measurements in the entire solubility range, is presented. The results show that…