Bis[1-hydroxy-4,4,5,5-tetra­methyl-2-(1,3-thia­zol-2-yl-κN)-2,3-dihydro-1H-imidazole-κN³]­dinitratomercury(II)

In the title complex, [Hg(NO₃)₂(C₁₀H₁₅N₃OS)₂], the Hg^II ion (site symmetry ) adopts a grossly distorted octa­hedral geometry by chelation of two neutral Him-thz ligands [Him-thz is 2-(2′-thia­zole)-4,4,5,5-tetra­methyl­dihydro-1H-imidazolyl-1-hydr­oxy] through their thia­zole N atoms [Hg—N = 2.846 (2) Å] and reduced imino nitroxide N atoms [Hg—N = 2.055 (2) Å], leading to a five-membered ring, together with two O atoms from two nitrate anions [Hg—O = 2.859 (3) Å]. The mol­ecules form one-dimensional chains by way of inter­molecular O—H...O hydrogen bonds.

Bis[1-hydr­oxy-4,4,5,5-tetra­methyl-2-(1,3-thia­zol-2-yl)-4,5-dihydro-1H-imidazole]nitratocobalt(II) nitrate

The title crystal structure, [Co(NO₃)(C₁₀H₁₅N₃OS)₂]NO₃, consists of Co^II complex cations and NO₃⁻ anions, located on different twofold axes and linked to each other via O—H...O hydrogen bonding. The Co^II complex assumes a distorted octa­hedral coordination geometry, formed by a chelating nitrate and two ImTh mol­ecules (ImTh is 1-hydr­oxy-4,4,5,5-tetra­methyl-2-(1,3-thia­zol-2-yl)-4,5-dihydro-1H-imidazole). Within the ImTh mol­ecule, the N—O bond distance of 1.386 (2) Å is much longer than the N—O bonds found in related complexes with the nitroxide radical.

4,4,5,5-Tetra­methyl-2-(thia­zol-2-yl)imidazolidine-1,3-diol

In the crystal structure of the title compound, C₁₀H₁₇N₃O₂S, the packing of the mol­ecules is mainly a result of two types of O—H...N hydrogen-bonding inter­actions, forming a two-dimensional network.