Abstract: An energy dispersive X-ray diffraction study of concentrated imidazole water solutions is reported. It reveals the presence of extended solute-solute aggregates. Such results can be interpreted in terms of a branch of a pseudo-helix of imidazole dimers interacting with water molecules. The mean distance between molecules in the dimer is similar to 3.7 Angstrom, while the mean distance between dimers is 4.75-4.95 Angstrom depending on concentration. The model structure functions and theoretical radial distribution functions fit the experimental data.
Molecular aggregation phenomena in solution: An energy dispersive X-ray diffraction study of imidazole concentrated water solutions / Gontrani, Lorenzo; Caminiti, Ruggero; Bencivenni, Luigi; Sadun, Claudia. - In: CHEMICAL PHYSICS LETTERS. - ISSN 0009-2614. - 301 ,1-2:(1999), pp. 131-137. [10.1016/S0009-2614(99)00005-6]
Molecular aggregation phenomena in solution: An energy dispersive X-ray diffraction study of imidazole concentrated water solutions.
GONTRANI, Lorenzo;CAMINITI, Ruggero;BENCIVENNI, Luigi;SADUN, Claudia
1999
Abstract
Abstract: An energy dispersive X-ray diffraction study of concentrated imidazole water solutions is reported. It reveals the presence of extended solute-solute aggregates. Such results can be interpreted in terms of a branch of a pseudo-helix of imidazole dimers interacting with water molecules. The mean distance between molecules in the dimer is similar to 3.7 Angstrom, while the mean distance between dimers is 4.75-4.95 Angstrom depending on concentration. The model structure functions and theoretical radial distribution functions fit the experimental data.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
