Determination of pair-correlation functions of liquid carbon tetrachloride under pressure

Structure of Neat Liquids Consisting of (Perfect and Nearly) Tetrahedral Molecules

“…Before going into details, a major and unresolved difficulty must be exposed: due to the lack of suitable experimental data, i.e., due to the fact that three independent diffraction measurements have not been performed within one study, not even the two-body correlation functions can be determined unequivocally on a purely experimental basis. The closest approximation to this goal was made by Narten in 1976, 234 who used one X-ray and one neutron diffraction data set, and Bhattarai et al in 1998, 226 who prepared one isotopically enriched sample and performed neutron diffraction on it as well as on the natural material. Both studies derived the C−Cl and Cl−Cl PRDFs by neglecting contributions from the C−C PRDF completely.…”

“…There was one important addition to the story of "neutron diffraction on liquid CCl 4 " in 1998: 226 Bhattarai et al, with great efforts put into the synthesis of the isotopically enriched sample, eventually they were able to make use of the technique of isotopic substitution on a sample containing the 35 Cl isotope. The contrast between this material and the "normal" sample, with natural chlorine, is not great (about 5% for the Cl−Cl PRDF) but clearly more than just noise.…”