metal-organic compounds
The structures of the 1:3 mononuclear complexes of copper(I) and silver(I) iodide with diethylthiourea (detu), namely, [CuI(C5H12N2S)3] and [AgI(C5H12N2S)3], are isomorphous. The metal atoms are approximately tetrahedrally coordinated to three S atoms and to one I atom.