The complex [Tb(2)(ClC(6)H(4)COO)(6)(2,2'-bipy)(2)]center dot(ClC(6)H(4)COOH)center dot(H(2)O)with m-chlorobenzoic acid and 2,2'-bipy-ridine as ligands has been synthesized by means of hydrothermal way. Crystal data for this complex are as follows: monoclinic, space group P (1) over bar, a=1.143 9(4) nm, b=1.211 6(4) nm, c=1.419 9(5) nm, alpha=103.600(6)degrees, beta=95.382(3)degrees, gamma=99.506(4)degrees, V=1.8684(10) nm(3), D(c)=1.692 g.cm(-3), Z=2,mu(Mo K alpha)=2.236 mm(-1), F(000)=943, final discrepancy factors R(1)=0.052 0, wR(2)=0.118 6. In the crystal, two neighboring Tb(III) ions ar...