\b[Water] is the preferred solvent ligand in the qualitative prediction. Its <oxygen> is a hard donor, it is less sterically demanding than ethanol, and it can occupy a crowded Eu(III) coordination sphere. Actual solvent occupancy also depends on activities and crystallization conditions, so a formula containing only the word solvent is not itself a crystallographic identification.

Solution

Past exam of the chemistry course of the year 3 of the natural sciences course of the University of Cambridge / 2021 / Paper 1 / 10 / c / ii / Solution

 Solution (source code)