The presence of angular O-ion-O correlations in the hydration shell of dilute water solutions of Cu2+ and Br- is investigated by means of an X-ray absorption experiment. An advanced data analysis including multiple-scattering effects produced quantitative information on these triplet correlations; the complementarity with X-ray and neutron diffraction is discussed. The experimental spectra indicate that Cu2+ has a Jahn-Teller distorted octahedral coordination, while the hydration shell of Br- is more disordered and substantially dominated by excluded volume effects.
TRIPLET CORRELATIONS IN THE HYDRATION SHELL OF AQUAIONS / Adriano, Filipponi; D'Angelo, Paola; Pavel, Nicolae Viorel; A., Dicicco. - In: CHEMICAL PHYSICS LETTERS. - ISSN 0009-2614. - STAMPA. - 225:1-3(1994), pp. 150-155. [10.1016/0009-2614(94)00622-9]
TRIPLET CORRELATIONS IN THE HYDRATION SHELL OF AQUAIONS
D'ANGELO, Paola;PAVEL, Nicolae Viorel;
1994
Abstract
The presence of angular O-ion-O correlations in the hydration shell of dilute water solutions of Cu2+ and Br- is investigated by means of an X-ray absorption experiment. An advanced data analysis including multiple-scattering effects produced quantitative information on these triplet correlations; the complementarity with X-ray and neutron diffraction is discussed. The experimental spectra indicate that Cu2+ has a Jahn-Teller distorted octahedral coordination, while the hydration shell of Br- is more disordered and substantially dominated by excluded volume effects.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
