Inter­actions of thia­mine with polymeric halogenocadmate anions in the organic–inorganic hybrid compound (thia­minium)[Cd3Br4.4Cl3.6].

The structure of poly[3-[(4-amino-2-methylpyrimidin-1-ium-5-yl)meth­yl]-5-(2-hydroxy­ethyl)-4-methyl­thia­zolium octa-μ-bromo/chloro­(4.4/3.6)-tricadmate(II)], {(C₁₂H₁₈N₄OS)[Cd₃ Br_4.41Cl_3.59]} _n consists of hydrogen-bonded thia­mine mol­ecules and polymeric cadmium bromide/chloride anions in an organic–inorganic hybrid fashion. The one-dimensional anion ribbons are formed by edge-sharing octa­hedra and vertex-sharing tetra­hedra. Thia­mine mol­ecules adopting the S conformation are linked to anions via three types of inter­actions, namely an N(amino)—H⋯anion⋯thia­zolium bridging inter­action, an N(pyrimidine)—H⋯anion hydrogen bond and an O(hydr­oxy)—H⋯anion hydrogen bond. [ABSTRACT FROM AUTHOR]