摘要

Three new three-dimensional Lanthanicle coordination polymers, namely [Ln(2)(Ac)(2)(ip)(2)(H2O)(4) center dot H2O](n) [Ln=Gd(l), Sm(2), Nd(3)], where Ac = acetate, ip = isophthalate, have been synthesized in hydrothermal method and characterized by single-crystal X-ray diffraction. Compounds 1-3 are isostructural and crystallize in the monoclinic system, space group P2(1)IC. Thermogravimetry, infrared spectra, elemental analysis have also been used to characterize 1. From topological view, the compounds present the second lanthanide-based, non-interpenetrating, decorated rutile net with the (4 x 6(2))(4(2) x 6(10) x 8(3))(2) topology notation. Notably, within them, (H2O)(6) cluster formed by free and coordinated water molecules via Hbonds is observed; and based on the consideration of the average O center dot center dot center dot O distance and IR spectrums, it is similar to those of liquid water.