The solvation structure of Ni2+in methanol

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Abstract
A neutron diffraction study has been carried out on 1 mol kg-1 solutions of nickel chloride in deuterated methanol. Isotopic substitution was applied to the nickel ions and the hydroxyl hydrogen of the methanol. The Ni2+ first-order difference radial distribution functions show that the Ni2+ . . . methanol conformation is characterised by the mean distances rNiO=2.07(2) AA, rNiH(1)=2.62(2) AA and rNiC=3.16(2) AA (H(1) refers to the hydroxyl hydrogen/deuterium atom). The pair radial distribution function, gNiH(1)(r) was calculated, and combined with the first-order difference results to demonstrate that Ni2+ is coordinated to 3.7(3) methanol molecules and at least 0.8(3) Cl-ions.