Dy(III) Single-Ion Magnet Showing Extreme Sensitivity to (De)hydration

A new
mononuclear dysprosium­(III)-cucurbit[6]­uril complex has been synthesized
and characterized structurally and magnetically. It exhibits single-ion
magnet (SIM) behavior with two slow magnetic relaxation processes,
which are very sensitive to the solvation degree of the sample. Depending
on the amount and type of the solvent in the structure, it is possible
to switch the slow magnetic relaxation of this compound between the
temperature-independent and temperature-dependent regimes.