The crystal and molecular structure of bis[N-(3,4,5-trimethoxybenzylidene)-2-mercaptoanilinato] zinc(II), [(C16H16NO3S)(2)Zn], has been determined at room temperature. The compound crystallizes in the tetragonal system, space group P4(2)/n, with unit cell dimensions a = 11.6726(1) Angstrom, c = 24.6274(3) Angstrom, Z = 4 and D-x = 1.326 g.cm(-3). The structure was refined by a full-matrix least-squares procedure on F-2 to final R = 0.0582 using 2921 reflections with I greater than or equal to 2 sigma(I). The zinc atom shows distorted tetrahedral coordination. The five-membered ring adopts envelope conformation.