A Mixed-Valence and Mixed-Spin Molecular Magnetic Material:

Long-range ferromagnetic ordering at 3 K is observed for the title compound, which may be considered as a fully localized mixed-valence species (Mo(3+) and Mo(4+)) as well as a mixed-spin species (low-spin and high-spin Mn(2+) ions). Its two-dimensional structure consists of heart-shaped 48-membered rings, and each ring contains 16 metal centers (see picture).

Carbonic anhydrase inhibitors. Part 11. Coordination compounds of heterocyclic sulfonamides with lanthanides are potent inhibitors of isozymes I and II.

A number of 22 lanthanide-containing coordination compounds of sulfonamides 2 and 3 were prepared and characterized by elemental analysis and spectroscopic data. The new compounds proved to be highly potent inhibitors of isozymes I and II of carbonic anhydrase.