Poly[[aqua­{μ(4)-2-[(carb­oxy­meth­yl)sulfan­yl]nicotinato-κ(4) O:O′:O′′:O′′′}copper(II)] trihydrate]

In the polymeric title complex, {[Cu(C(8)H(5)NO(4)S)(H(2)O)]·3H(2)O}(n), the Cu(II) cation is coordinated by one water mol­ecule and four carboxyl­ate O atoms from four 2-[(carb­oxy­meth­yl)sulfan­yl]nicotinate anions in a distorted square-pyramidal geometry. The 2-[(carb­oxy­meth­yl)sulfan­yl]nicotinate anion bridges four Cu(II) cations, forming a two-dimensional polymeric complex parallel to the bc plane. In the crystal, O—H⋯O, O—H⋯N and O—H⋯S hydrogen bonds link the complex mol­ecules and lattice water mol­ecules into a three-dimensional supra­molecular architecture.