Sun, Ya-guang, Jiang, Bing, Cui, Tian-fang, Xiong, Gang, Smet, Philippe F., Ding, Fu, Gao, En-jun, Lv, Tian-yi, Van den Eeckhout, Koen, Poelman, Dirk, and Verpoort, Francis
A series of lanthanide-organic framework coordination polymers, {[La2(TDC)2(NO3)(H2O)4](OH)·5H2O}n(1) and [Ln(TDC)(NO3)(H2O)]n(TDC = thiophene- 2, 5- dicarboxylic acid; Ln = Nd(2), Sm(3), Eu(4), Gd(5), Tb(6), Dy(7), Ho(8), Er(9), Yb(10)) have been synthesized by solvothermal reaction and characterized by elemental analysis, FT-IR, TG analysis, single-crystal X-ray diffraction and power X-ray diffraction. The single-crystal X-ray diffraction analysis results show that 1displays a 3-D porous framework with (3,7)-connected {410.611}{43} topology. The compounds 2–10crystallized in the same P21/cspace group and exhibits a (3,6)-connected {4.62}2{42.610.83} topology, Right-handed and left-handed helical chains coexist in the 2-D layer structure. The luminescence properties of 2–10and the magnetic properties of 5,7,8,9were investigated. [ABSTRACT FROM AUTHOR]