Crystal structures of [Mn(bdc)(Hspar)(2)(H(2)O)(0.25)]·2H(2)O containing MnO(6+1) capped trigonal prisms and [Cu(Hspar)(2)](bdc)·2H(2)O containing CuO(4) squares (Hspar = sparfloxacin and bdc = benzene-1,4-di­carboxyl­ate)

The syntheses and crystal structures of 0.25-aqua­(benzene-1,4-di­carboxyl­ato-κ(2) O,O′)bis­(sparfloxacin-κ(2) O,O′)manganese(II) dihydrate, [Mn(C(8)H(4)O(4))(C(19)H(22)F(2)N(4)O(3))(2)(H(2)O)(0.25)]·2H(2)O or [Mn(bdc)(Hspar)(2)(H(2)O)(0.25)]·2H(2)O, (I), and bis­(sparfloxacin-κ(2) O,O′)copper(II) benzene-1,4-di­carboxyl­ate dihydrate, [Cu(C(19)H(22)F(2)N(4)O(3))(2)](C(8)H(4)O(4))·2H(2)O or [Cu(Hspar)(2)](bdc)·2H(2)O, (II), are reported (Hspar = sparfloxacin and bdc = benzene-1,4-di­carboxyl­ate). The Mn(2+) ion in (I) is coordinated by two O,O′-bidentate Hspar neutral mol­ecules (which exist as zwitterions) and an O,O′-bidentate bdc dianion to generate a distorted MnO(6) trigonal prism. A very long bond [2.580 (12) Å] from the Mn(2+) ion to a 0.25-occupied water mol­ecule projects through a square face of the prism. In (II), the Cu(2+) ion lies on a crystallographic inversion centre and a CuO(4) square-planar geometry arises from its coordination by two O,O′-bidentate Hspar mol­ecules. The bdc dianion acts as a counter-ion to the cationic complex and does not bond to the metal ion. The Hspar ligands in both (I) and (II) feature intra­molecular N—H⋯O hydrogen bonds, which close S(6) rings. In the crystals of both (I) and (II), the components are linked by N—H⋯O, O—H⋯O and C—H⋯O hydrogen bonds, generating three-dimensional networks.