Local order in fully deuterated liquid acetic acid as studied by neutron scattering. Complementarity to X-ray results

A structural investigation of fully deuterated liquid acetic acid (AA(d4)) was performed at 298 K and atmospheric pressure by using neutron scattering. The recorded data are analyzed to yield the total structure factor S-M(q), the molecular form factor F-1(q), the distinct pair correlation function g(L)(r) and the second signature of H-bonding, i.e. the deuterium oxygen interaction. Neutron scattering data, as well as recent X-ray studies, clearly show that the local order of the liquid is largely described by the short-range crystal structure. (C) 2014 Elsevier B.V. All rights reserved.