A one-dimensional coordination polymer, catena-poly[[[[N-ethyl-N-(pyridin-4-ylmeth­yl)di­thio­carbamato-κ(2) S,S′]zinc(II)]-μ(2)-N-ethyl-N-(pyridin-4-ylmeth­yl)di­thio­carbamato-κ(3) S,S′:N] 4-methyl­pyridine hemisolvate]

The title compound, {[Zn(C(9)H(11)N(2)S(2))(2)]·0.5C(6)H(7)N}(n), comprises two independent, but chemically similar, Zn[S(2)CN(Et)CH(2)py](2) residues and a 4-methyl­pyridine solvent mol­ecule in the asymmetric unit. The Zn-containing units are connected into a one-dimensional coordination polymer (zigzag topology) propagating in the [010] direction, with one di­thio­carbamate ligand bridging in a μ(2)-κ(3) mode, employing one pyridyl N and both di­thio­carbamate S atoms, while the other is κ(2)-chelating. In each case, the resultant ZnNS(4) coordination geometry approximates a square pyramid, with the pyridyl N atom in the apical position. In the crystal, the chains are linked into a three-dimensional architecture by methyl- and pyridyl-C—H⋯S, methyl­ene-C—H⋯N(pyrid­yl) and pyridyl-C—H⋯π(ZnS(2)C) inter­actions. The connection between the chain and the 4-methyl­pyridine solvent mol­ecule is of the type pyridyl-C—H⋯N(4-methyl­pyridine).