A 3d-4f heterometallic coordination polymer, [Mn0.5Tb (INAIP)(2)(H2O)(2)]center dot 2H(2)O (1) has been prepared by hydrothermal reactions of the corresponding lanthanide salt with 5-(isonicotinamido)isophthalic acid (H(2)INAIP) in the presence of MnSO4 center dot H2O and NaOH. X-ray single-crystal structural analysis reveals that 1 features non-interpenetrated three-dimensional (3D) coordination framework containing two-dimensional (2D) (4, 4) Tb-carboxylate layers. In addition, 1 also displayed photolu...