The structures of the nickel(II) and [tri(n-butyl)]tin(IV) complexes with the sulfonamide carboxylic acid, 4-{(2-nitrophenylsulfonamido)methyl}cyclohexanecarboxylic acid, [Ni(C14H17N2O6S)2(H2O)4], (1), and [Sn(C4H9)3(C14H17N2O6S)]n, (2) have been determined. Crystals of 1 are triclinic, space group P−1, with unit cell dimensions a = 5.2264(4), b = 6.2415(2), c = 27.1409(16) A, α = 85.682(4), β = 89.935(4), γ = 82.861(5)o and Z = 1, while compound 2 is monoclinic, space group C2/c, with unit cell dimensions a = 30.425(3), b = 10.1384(5), c = 19.4463(13) A, β = 92.303(7)o and Z = 8. Compound 1 is a discrete centrosymmetric octahedral NiO6 complex comprising four waters and two O-donors from inversion-related monodentate carboxylate ligands. Compound 2 is coordination polymeric with the five-coordinate SnIV centre having the common trigonal bipyramidal repeat unit with three tri(n-butyl) groups occupying the trigonal plane of the bipyramid and the carboxylate O-donors bridging the apical sites.